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Further discussion on low altitude economy: concept definition and#br# composition analysis#br# QIN Rui Journal of Civil Aviation University of China    2023, 41 (6): 59-64.   Abstract （8486）            Knowledge map    Save Aiming at the issue that current definition of low altitude economy fails to reveal its "category" and "variety difference" detailed and exactly, combined with the background and current usage of the concept of low altitude economy and based on the basic principles and methods of terminology, international terminology work standards and national terminology work standards, this paper defines low altitude economy as an economic field composed of a series of economic activities, with air transportation and operation equipment technology as the main tools, low altitude airspace as the main activity field, and low altitude flight activities as the final output form. Its basic composition is summarized as one key resource, three core industries, and four auxiliary population, which can provide reference for further clarifying the connotation and extension of the concept of low altitude economy and construct鄄 ing theoretical system of low altitude economy. Reference | Related Articles | Metrics | Comments（0）

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Modeling the influence of foundation self-weight stress on shear wave velocity of airport soil foundation ZHANG Yuhui , GUO Haotian , GU Xin , ZHAO Yuanyuan Journal of Civil Aviation University of China    2023, 41 (5): 1-5.   Abstract （3042）            Knowledge map    Save The influence of foundation self-weight stress on shear velocity has not been taken into account in the existing models for compaction degree measurement based on shear wave velocity, resulting in significant errors in the detection results of deep soil foundation. A test device of airport soil foundation shear wave velocity and foundation self-weight stress is designed to address this issue, and shear wave velocity test of silty clay of 98% compaction degree under variable stress condition is conducted. The unloading method is applied to eliminate the influence of soil sample deformation on the experiment, and a correlation model between the shear wave velocity of airport soil foundation and the foundation self-weight stress is established. And the accuracy of the theoretical value calculated by the model and the measured value is 97.4%, verifying the effectiveness of this model. The results show that under the condition of 98% compaction degree, the foundation self-weight stress increases from 0 kPa to 250 kPa, and the shear wave velocity increases 287.49 m/s, which shows a good logarithmic function relationship. And the shear wave velocity of soil foundation shows an increasing trend from rapid to slow with the increase of stress. Under the same condition of soil compaction degree and optimal moisture content, the shear wave velocity of soil foundation increases with the deepening of foundation depth. Reference | Related Articles | Metrics | Comments（0）

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Research on highly nonlinear Richards infiltration model based on PINNs HUO Haifeng, HUANG Haoyu, LI Qiang, HU Biao, ZHANG Zhaowen Journal of Civil Aviation University of China    2023, 41 (5): 6-12.   Abstract （2931）            Knowledge map    Save For the Richards infiltration model of unsaturated soil with highly nonlinear coefficients, the physics-informed neural networks(PINNs) is applied to solve it and the network prediction results are verified by the finite difference method. It is found that the prediction results of PINNs are basically consistent with the prediction results of finite difference method. The influence of hyperparameter on the error of PINNs is further investigated to determine the impact of factors such as training set size and number of network layers on PINNs training set and test set errors. With reasonable hyperparameter adjustment, the PINNs prediction model exhibits good training performance in the highly nonlinear infiltration model. This computational method can be widely applied to solve airport engineering problems such as heat conduction, water vapor migration and stress balance. Reference | Related Articles | Metrics | Comments（0）

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Carbon emission reduction effect of airport digitization: theoretical mechanism and empirical test TIAN Lijun, ZHANG Xiu Journal of Civil Aviation University of China    2023, 41 (5): 57-64.   Abstract （2717）            Knowledge map    Save Taking civil aviation airports in China as the research object and using cross-section data of 2019 as the time window, a model of the relationship between airport digitization and carbon reduction is constructed. From the perspective of capability advanced evolution and complementarity, the relationship between digitization and carbon emissions under the viewpoint of construction scale and administrative division is analyzed, and the mechanism of digitization effect on airport carbon emission is tested. It is found that airport digitization can significantly suppress carbon emissions, and carbon intensity decreased 0.108% with every 1% increase in digitization level. The carbon emission reduction effect of digitization has obvious regional differences, while there is no scale effect. Digitization mainly realizes carbon emission reduction through improvement of management level and passenger service satisfaction by efficient resource allocation. The research conclusion of this paper can provide theoretical support and empirical evidence for propulsion of carbon peak and carbon neutrality in civil aviation based on digital technology Reference | Related Articles | Metrics | Comments（0）

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In-situ test and analysis of stack-load preloading of drainage plate in a certain lake filled airport CHENG Guoyong , WU Hang , LI Changhui , CHEN Yu , JIN Min Journal of Civil Aviation University of China    2023, 41 (5): 13-19.   Abstract （2656）            Knowledge map    Save In this paper, two loading methods of surcharge preloading (overload ratio 1.14) and permanent pressure loading are used to carry out in -situ tests on large -area deep soft soil foundation treatment at an airport in Hubei province. By analyzing the data of settlement and pore water pressure monitoring, the change law of soil consolidation degree and the development of horizontal displacement rate of the two loading schemes are summarized, and the post construction settlement is predicted by the hyperbolic method. The test results show that the consolidation degree of most soft soil foundations can reach more than 90% after 120 days of stack-load preloading. The foundation consolidation degree of the surcharge preloading is 3.39% higher than that of the permanent pressure loading in test section. The average predicted post construction settlement of surcharge preloading is 25.59 mm, and the average predicted post construction settlement of permanent pressure preloading is 74.11 mm, both of which can meet the design requirements of post construction settlement. In the two forms of preloading process, the maximum value of the horizontal displacement rate of deep soft soil is 1.65 mm/d, which is lower than the standard value of 5 mm/d. The above conclusions can provide a basis for the subsequent construction of the project and a reference for similar projects. Reference | Related Articles | Metrics | Comments（0）

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Multi-objective optimization of airport runway construction schedule based on BIM and GA FENG Xing, ZHANG Jian, LI Runing Journal of Civil Aviation University of China    2023, 41 (5): 49-56.   Abstract （2520）            Knowledge map    Save In the management of airport runway engineering projects, scientifically and reasonably arranging the construction schedule is an important factor to ensure short project duration, low cost, excellent quality, and good environment. Therefore, this article mainly conducts multi-objective optimization research on the airport runway construction schedule, including construction period, cost, quality, and environment. Firstly, based on the airport runway construction blueprint, a 3D model is established using Revit software of building information modeling (BIM), and the construction models are imported into Glodon and Project to obtain quantitative data such as costs and an initial construction schedule. Secondly, a mathematical model for optimizing the objective functions of duration, cost, quality, and environment is established, and utilizing the Matlab-GUl language, a multi-objective optimization software for airport runway construction schedule with parameter input, optimization, and result output is developed based on genetic algorithm (GA). Finally, by optimizing the construction schedule of the actual case, the effectiveness and practicality of the approach and software are verified, which serves as a basis for the design of the airport runway construction schedule Reference | Related Articles | Metrics | Comments（0）

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Research on lumbar spine injury of aircraft occupants under vertical impact based on THUMS SHI Xiaopenga , LI Peiyaob , GUO Kai c , CUI Shurui c , XIE Jianga Journal of Civil Aviation University of China    2025, 43 (4): 1-9.   Abstract （2387）            Knowledge map    Save Under aircraft crash impacts, lumbar spine injury is a key factor affecting the survival ability of aircraft occupants (abbreviated as occupants). This article aims to investigate the lumbar spine injuries of occupants under vertical impact loads. Firstly, the high-precision numerical dummy THUMS (total human model for safety) was used to study the effects of loading peak and loading time of the impact load acceleration on the biomechanical injuries to the lumbar spine of occupants. Secondly, the differences in lumbar spine dynamic response between THUMS and Hybrid Ⅲ dummies under vertical impact conditions were analyzed. Finally, the biomechanical injury of the occupants′ lumbar spine was studied from a microscopic perspective. The study showed that with change of constant velocity, the peak value of axial load of the occupants′ lumbar spine increases greatly with an increase in loading peak of acceleration, while the peak value of bending moment of the lumbar spine increases little. The peak value of axial load of the occupants′ lumbar spine is positively correlated with the speed of energy accumulation. When the loading time is excessively short, the inertia effect limits lumbar flexion, resulting in a smaller bending moment of the lumbar spine. The largest axial load of lumbar spine appears at the L5 cross-section and the largest bending moment of lumbar spine occurs at the L1 cross-section, the assessment of lumbar spine injury of occupants should comprehensively consider the effects of axial compression force and bending moment. From a biomechanical perspective, the risk of injury to the cortical bone and key ligaments of the lumbar spine is the highest. Reference | Related Articles | Metrics | Comments（0）

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Progress on civil aircraft vibration comfort design SHU Juncheng, , HE Erming, , YIN Menghan, , ZHAO Guanchen, Journal of Civil Aviation University of China    2025, 43 (2): 1-7.   Abstract （2342）            Knowledge map    Save In the competition of the civil aviation market, passenger comfort is paramount. In order to improve the vibration comfort of civil aircraft and enhance the market competitiveness of Chinese civil aircraft, this article proposed methods and ideas for solving civil aircraft vibration problems from the perspective of civil aircraft design process. Firstly, based on the commercial operation of China′s domestically developed regional aircraft ARJ21 and large aircraft C919 with independent intellectual property rights, the main vibration problems of China′s self-developed civil aircraft were introduced in detail. Secondly, the multi-source vibration characteristics of civil aircraft and their transmission paths on the body were analyzed, and the methods of multi-source vibration contribution analysis and cabin vibration comfort evaluation were introduced. Subsequently, in order to prioritize vibration comfort requirements in the design phase of civil aircraft, a two-stage vibration reduction index allocation process based on multi-source vibration contribution analysis was proposed, and the basic idea of civil aircraft vibration comfort design was constructed. Finally, the research direction of vibration comfort design for civil aircraft was prospected, and the technical measures and ideas to improve passenger comfort were explored, in order to provide useful inspiration for the vibration comfort design of Chinese civil aircraft. Reference | Related Articles | Metrics | Comments（0）

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Sensitivity analysis of engine safety affecting factors based on the turbocharging system model LI Guoa, , WANG Zilub , TENG Yidab , XU Tonggeb Journal of Civil Aviation University of China    2025, 43 (1): 1-10.   Abstract （2289）            Knowledge map    Save Adopting turbocharging system can effectively restore the high-altitude power performance of the engine and improve the working ceiling of general aircraft. However, while improving the engine performance, its safety should also be given sufficient attention. In order to improve the safety of the turbocharging system of aviation reciprocating engine and provide suggestions for actual operation, this paper combines model-based system safety analysis, "V" shaped safety analysis, response surface methodology (RSM), and Sobol factor sensitivity analysis method, and taking Rotax914 as prototype, a quasi dimensional model for the entire engine and fitting equation are constructed for global sensitivity analysis. The sensitivity of the turbocharging system performance of aviation reciprocating engine to different safety affecting factors are analyzed and compared. The results indicate that the sensitivity index of altitude is much higher than other factors, and the sensitivity index of intake valve diameter is higher than that of exhaust valve diameter but they are similar in magnitude. The effective length of air filter has almost no effect on the engine turbocharging system under normal operating condition. Therefore, during the actual operation, the change range of safety affecting factors can be adjusted according to the analysis results, in order to reducing the uncertainty of key factors and conducting efficient and intuitive safety analysis. Reference | Related Articles | Metrics | Comments（0）

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Experimental and simulation on emergency evacuation of passenger in wide-body aircraft under tilted attitude CHENG Ming, WEI Keyu Journal of Civil Aviation University of China    2025, 43 (3): 1-7.   Abstract （2248）            Knowledge map    Save To explore the influence of tilted attitude of wide-body aircraft on the emergency evacuation of cabin passenger, a combination of cabin partial evacuation test and full-size simulation test is used to analyze the key factors such as evacuation time. Based on the scenario construction theory and social force model, the relevant parameters in the full-size simulation model are modified with real test data of partial evacuation, and then the full-size simulation model is used to conduct the simulation test of passenger evacuation under cabin tilted attitude, and the increase model of the average evacuation time of tilted attitude is established. The test data show that the inclination attitude angle of the aircraft has an effect on the evacuation process and efficiency. Under pitch attitude, pitch ±5 degrees has a positive effect on the evacuation efficiency, evacuation efficiency is -0.044 at pitch -10 degrees. Under roll posture, roll angle has a significant negative correlation with evacuation efficiency, and the evacuation efficiency is -0.073 at roll ±10°. The results show that the data deviation between simulation model and real test of partial evacuation is 6.54%, which is in the acceptable range. The full-size simulation model can accurately simulate the effects and change rules of passenger emergency evacuation under the tilted attitude of the cabin, and can provide references for the safety evaluation of the design, manufacture and operation of passenger aircraft. Reference | Related Articles | Metrics | Comments（0）

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Analysis of mechanical properties and fatigue life of ECC-concrete composite airport pavement WU Kun, LIN Xijie, CHEN Yu, LI Changhui Journal of Civil Aviation University of China    2023, 41 (5): 27-33.   Abstract （2156）            Knowledge map    Save Due to the influence of external environment and human factors, the airport cement concrete pavement panels will encounter early diseases such as surface cracking after 5 to 7 years of use and accelerate the development of other diseases, which makes its service life far less than the designed 20 to 30 years. In order to solve the problem of cracking on the surface of the pavement panel, a composite pavement with engineered cementitions composite (ECC) material on the top and ordinary concrete on the bottom is designed, while the economic factor is also considered. The ABAQUS software is used to simulate the mechanical properties of the composite pavement panel loaded by the aircraft wheel load and the service life is analyzed. The results show that with the increase of the thickness of ECC layer, the deflection of the pavement panel will slightly increase. The service life of the pavement panel will significantly increase because of the excellent tensile and flexural properties of ECC. When the thickness of ECC layer increases from 100 mm to 200 mm, the fatigue life of the pavement is increased by about 5.2 times. Reference | Related Articles | Metrics | Comments（0）

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Simulation of electrothermal effect of CFRC pavement slab ZHI Yanfei, WANG Hui, LIU Jianying Journal of Civil Aviation University of China    2023, 41 (5): 42-48.   Abstract （2152）            Knowledge map    Save In orderto investigate the de-icing effect of carbon fiber concrete(CFRC) pavement, this paper verifiesthe reliability of numerical simulation of the electrothermal temperature rise process of CFRC pavement slab by comparing the results of indoor tests with those of ABAQUS electrothermal effect analysis, and investigates the temperature rise law of pavement with and without insulation layer, under different voltage, carbon fiber content, external temperature and wind speed level. The simulation results show that the higher the carbon fiber content, the less the influence of input voltage on the temperature rise rate of the pavement slab, and when the carbon fiber content reaches 1.7%, the influence on the temperature rise rate of the pavement slab will no longer be obvious. The initial external temperature has little effect on the temperature rise rate of the pavement slab, and the higher the external wind speed level, the slower the temperature rise rate. When the external wind speed level is higher than level three, the voltage impact on the pavement slab temperature rise is greater, when the wind speed reaches level six, It is difficult for the pavement slab to warm up to 0°C under the voltage below 90V. When the external temperature is -10°C, the heating rate of the pavement slab with insulation layer is faster than that without insulation layer, and when the wind speed level is lower than level three, the de-icing effect of the road panel with and without insulation layer is small. By studying the model temperature rise curves under different influencing factors, reference can be provided for the construction of CFRC airport pavement in cold regions. Reference | Related Articles | Metrics | Comments（0）

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Hydro-thermal-mechanical coupling analysis of temperature stress on runway subgrade in permafrost regions QI Chunxiang, HAN Zhuo, MA Lin, ZHANG Xianmin, LI Yao Journal of Civil Aviation University of China    2023, 41 (5): 34-41.   Abstract （2142）            Knowledge map    Save In order to reveal the distribution law of the temperature stress of the permafrost wide runway under the coupling effect of multifield, the temperature change process of the permafrost during a cold season in a certain region of Northeast China was simulated via indoor experiment and compared with the temperature field model based on the hydro-thermal coupling theory. Furthermore, according to the geological conditions of permafrost in Northeast China, combined with the change of the mechanics parameters of runway structure with temperature, a hydrothermal-mechanical coupled two-dimensional finite element model of runway foundation was established. Finally, the distribution law of the overall temperature stress of the runway surface structure and the foundation in January, April, July and October during the 30 years was calculated. The results show that the method of calculating the temperature field of frozen soil based on the finite element simulation of hydro-thermal coupling is effective. The influence depth of horizontal temperature stress in the middle of the runway is about 5 m. The temperature stress changes significantly in January and July during the year, and temperature compressive stress exists in most of the permafrost foundation, and it increases year by year. The maximum temperature tensile stress in the pavement structure layer appeared in the center surface of the runway in January, which was about 30% of the split strength of the surface material, and appeared in the base of the runway in July, which was about 28% of the split strength of the base material. It can be seen that temperature stress of permafrost runway foundation need attention in summer and winter. The above results can provide reference for airport runway design in permafrost environment. Reference | Related Articles | Metrics | Comments（0）

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LightGBM-based phased multimodal trajectory prediction method Journal of Civil Aviation University of China    2026, 44 (1): 1-9.   Abstract （2142）      PDF（pc） （1224KB）（105）       Knowledge map    Save as insufficient data diversity, dificulty in acquiringcritical data, high model complexity and poor generalization, this paper proposes a light gradient boosting ma-chine (LightGBM)-based phased multimodapn method (LightGBM-based PMTPM). Themethod can intelligently identify the flight phabased on data from the aircraft's own sensors,predict the 4D trajectory and real-time qualig an onboard computer. Experimental resultsshow that, during all flight phases, the LightGoutperforms the back propagation neural net-work-based phased multimodal trajectory predN-based PMTPM) in predictive performance,with root mean square error (RMSE) reductions of 64.86%, 13.15%, 80.88%, 77.46%, 86.45%, 3.46% and19.22%, respectively. The average evaluation time of the LighiGBM-based PMTPM is 59.890 ms, meeting theaccuracy and real-time requirements for 4D trajectory prediction of aircraft. Related Articles | Metrics | Comments（0）

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Design of aircraft cabin passenger layout scheme based on infectious disease model GU Runping, ZHANG Yangzong, LIU Jiaming Journal of Civil Aviation University of China    2025, 43 (3): 32-37.   Abstract （2114）            Knowledge map    Save During the spread of the epidemic, regarding the risk of passengers of mutual infection in the aircraft cabin, it is very necessary to optimize the layout scheme of passengers in the cabin and reduce the virus infection probability of passenger. By studying the law of virus transmission in the aircraft cabin, this paper analyzed the influencing factors of the probability of individuals being infected by the virus and the virus shedding rate in the cabin. The match between passenger and seat was used as the decision variable, and the minimum sum of the cabin passengers affected by the virus shedding rate of other passengers around was used as the objective function. Based on the characteristics of passenger group flight, a allocation model for the passenger group cabin seat was established. This paper designed an improved genetic algorithm, solved the model, and realized the algorithm using Matlab. Taking A320 aircraft as an example, three passenger cases with different group layouts were tested. The results showed that the proposed model and algorithm can provide an optimized seat allocation scheme within an acceptable time and reduce the probability of infection among passengers. Reference | Related Articles | Metrics | Comments（0）

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Safety assessment and decision analysis of UAV considering uncertainty TIAN Yi, RAO Haochang, XIAO Nyu′e Journal of Civil Aviation University of China    2025, 43 (1): 83-88.   Abstract （2089）            Knowledge map    Save Quantitative safety assessment is an important means to verify whether unmanned aerial vehicle(UAV) meets the safety requirements. Aiming at the parameter uncertainty of UAV component failure distribution, firstly, the failure distribution parameters of basic events are modified by Bayesian theory to obtain the failure probability of top events. Then, the safety decision analysis of top events is completed with the help of Bayesian decision theory. Finally, the safety evaluation of UAV is improved into a complete assessment and decision analysis process. The research shows that the calculation process of top event failure probability and Bayesian decision can be realized by taking the error information generated by data link communication during the operation of a UAV as an example. Reference | Related Articles | Metrics | Comments（0）

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Research progress on the application of CF3I in substituting airborne Halon fire-extinguishing agent CUI Wenyao Journal of Civil Aviation University of China    2025, 43 (4): 10-14.   Abstract （2047）            Knowledge map    Save The airborne Halon fire-extinguishing agent in aircraft has been restricted in production and phased out within a specified period by international conventions due to its ozone depleting effects. Trifluoroiodomethane (CF3I) is considered as one of the most promising Halon alternatives due to its comparable efficiency of fire-extinguishing to Halon, low ozone depletion potential (ODP) and global warming potential (GWP). However, concerns regarding its cardiac sensitization have limited its usage to uninhabited areas. In this work, the feasibility study of CF3I replacing airborne Halon fire-extinguishing agent is firstly sorted out. Then, the current research progress on the design of CF3I fire-extinguishing system is summarized. Finally, the research direction of airborne CF3I fire-extinguishing device is prospected. This study has important practical significance for the research and development of domestic large aircraft Halon replacement technology and fire-extinguishing equipment. Reference | Related Articles | Metrics | Comments（0）

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Research on the resilience evaluation of airport running and sliding system under snowfall conditions CHENG Guoyong, TIAN Yimeng Journal of Civil Aviation University of China    2025, 43 (4): 50-55.   Abstract （2028）            Knowledge map    Save In response to the prominent problems faced by most large civil aviation airports in China, such as capacity saturation and high operational pressure, as well as the weak resilience research in China′s civil aviation infrastructure field under unfavorable meteorological conditions, a 4E airport in North China is taken as the research object, firstly, the running and sliding system simulation model of this airport is established by Anylogic simulation tool, and the performance response function F（t） of the running and sliding system is constructed based on three parameters: the total number of take-off and landing sorties completed up to t hour N(t), the total number of take-off and landing sorties within t hour nt and the average taxiing time T(t). Secondly, on this basis, according to the basic concept of performance response function method, the resilience index R of running and sliding system is proposed. Then, further referring to the arithmetic mean and one standard deviation results of airport resilience index from previous research, a 5-level classification standard for the resilience level of the running and sliding system is proposed, including low, relatively low, medium, relatively high, and high resilience. Finally, according to the above research, it is concluded that the resilience level of running and sliding system fluctuates due to the influence of flight arrangement density, and the airport performs well under short -term and small snowfall conditions, where the resilience index is above 0.680 0. However, the resilience level of the system needs to be improved under long-term and heavy snowfall conditions, and the resilience index is only 0.472 1 under the most unfavorable conditions. This study can provide references for the research and application of the resilience theory of civil aviation infrastructure. Reference | Related Articles | Metrics | Comments（0）

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Numerical simulation of local support deterioration of asphalt concrete pavement DAI Xuan , CAO Yifan , LI Xiangxiang , LI Zhao , MA Yunxiang Journal of Civil Aviation University of China    2023, 41 (5): 20-26.   Abstract （2028）            Knowledge map    Save The local support deterioration of asphalt concrete pavement is one of the main factors causing its disease. Considering the different deterioration degree of pavement base and subgrade, the deterioration of support material is achieved by the reduction of the mechanical parameters . The numerical simulation is carried out by FLAC3D software. The results show that with the increase of deterioration degree, the deflection and tensile stress of asphalt concrete pavement increase gradually. Besides, the maximum deflection of asphalt concrete pavement decreases in a power function with the increase of deterioration coefficient. When the deterioration area ratio is greater than 1, the pavement deflection increases linearly with the deterioration area ratio. With the development of deterioration depth, pavement deflection value can be divided into rapid increase stage and slow change stage obviously. When the critical depth is exceeded, the influence of support deterioration on pavement deflection is not obvious. The research results have reference significance for improving the operation safety of asphalt pavement under the condition of disease. Reference | Related Articles | Metrics | Comments（0）

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Study on degradation and thermal runaway characteristics of commercial lithium-ion battery fast-charging ZHOU Xiaomeng a, b , CAI Jinlea, b , GUO Yiboa , LIAO Yunlong b Journal of Civil Aviation University of China    2025, 43 (1): 27-32.   Abstract （1975）            Knowledge map    Save To identify the impact of fast-charging aging factors on the operation and thermal safety performance of lithium-ion batteries, this study first conducts cyclic aging tests on commercial 18650 lithium-ion batteries using 1C/2C charging rate to characterize capacity decay, electrochemical impedance, operating temperature rise, and other characteristics of the battery. Secondly, on the self built thermal runaway platform, compare the differences in thermal runaway behavior and temperature characteristics between fresh and fast-charging aged lithium-ion batteries are compared. The results show that the aging process of lithium-ion battery is nonlinear, and presents three stages corresponding to different aging mechanisms. Increasing the fast-charging rate leads to a significant magnify in charge transfer impedance and ohmic impedance. The cycle life of lithium-ion batteries with 2C charging rate aging shortens rapidly, and abnormal heat release behavior occurs during the cycle, and the maximum surface temperature reaches 75 ℃ during the charging phase, which not only accelerates the capacity decay of the battery, but also increases the risk of thermal runaway. The results of the thermal runaway test show that the thermal runaway of aged lithium-ion batteries is delayed and the temperature of thermal runaway is higher. Lithium-ion batteries affected by fast-charging aging factors have better thermal stability, but the process of thermal runaway is more dangerous. Reference | Related Articles | Metrics | Comments（0）