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Propeller-driven aircraft cabin noise control design method

A technology of noise control and design method, applied in the field of aeroacoustics, can solve the problems of difficult design, complex transmission path, and many noise sources, and achieve the effect of improving driving comfort.

Active Publication Date: 2020-08-28
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Aircraft cabin noise control design is a systematic project, which is closely related to aircraft flight speed, engine operating conditions, and airborne systems in the cockpit. There are many sources, the transmission path is complicated, and the design is difficult

Method used

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  • Propeller-driven aircraft cabin noise control design method
  • Propeller-driven aircraft cabin noise control design method
  • Propeller-driven aircraft cabin noise control design method

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Embodiment Construction

[0024] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the pr...

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Abstract

The invention belongs to the technical field of aviation acoustics, and particularly relates to a propeller-driven aircraft cabin noise control design method. The method starts from an aircraft designprocess, propeller noise and aircraft aerodynamic noise are predicted, a noise index in the cabin is demonstrated and preliminary design is carried out; a propeller noise wind tunnel test and an airplane aerodynamic noise wind tunnel test are then carried out, a detailed prediction model is established, simulation calculation is carried out on distribution of propeller noise and aircraft aerodynamic noise along an aircraft body, and on the basis, an aircraft cabin noise detailed model is established, evaluation and optimization design are carried out on a detailed design scheme, ground and flight noise test is carried out on an actual aircraft, the detailed design scheme is further optimized, propeller aircraft cabin noise control design is completed, and the driving and riding comfort ofan aircraft cabin is improved.

Description

technical field [0001] The application belongs to the technical field of aeroacoustics, and in particular relates to a noise control design method in a propeller aircraft cabin. Background technique [0002] Aircraft cabin noise control design is a systematic project, which is closely related to aircraft flight speed, engine operating conditions, and on-board systems in the cockpit. There are many sources that affect cabin noise, the transmission path is complex, and the design is difficult. It is urgent to establish a complete set of cabin noise control design technology, systematically carry out aircraft cabin noise control design, improve the cabin acoustic environment, and improve the comfort of drivers and passengers. Contents of the invention [0003] In order to solve at least one of the above-mentioned technical problems, the present application provides a noise control design method for a propeller aircraft cabin, so as to realize the noise design for a propeller ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64F5/00B64F5/60
CPCB64F5/00B64F5/60Y02T90/00
Inventor 段卓毅顾金桃杨卫平刘成玉高飞胡陈映肖乾周杰
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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