Progress on civil aircraft vibration comfort design

Abstract

Abstract:

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.

Key words:

vibration comfort design, civil aircraft, vibration transmission path, allocation of vibration reduction index, contribution of vibration

CLC Number:

V271.1
TB532

SHU Juncheng, , HE Erming, , YIN Menghan, , ZHAO Guanchen, .

Progress on civil aircraft vibration comfort design

[J]. Journal of Civil Aviation University of China, 2025, 43(2): 1-7.

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