Advertisement

Theory and Simulation Analysis of Acoustic Characteristics of a High-Level Traveling-Wave Acoustic Environment Simulation Device

  • Yao WuEmail author
  • Zhiqiang Shen
  • Qiang Jiang
  • Guiqian Fang
  • Xinming Li
  • Jungang Zhang
  • Gongbo Ma
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 576)

Abstract

The acoustic field characteristics of high-level traveling-wave acoustic environmental simulation equipment (traveling-wave tube) are analyzed in light of the problem of insufficient high-frequency capacity when conducting high-level acoustic environmental tests. First, the acoustic field characteristics of the traveling-wave tube are simulated based on the acoustic finite element method. Through the comparative analysis of transmission loss and sound pressure distribution, the problem is located in the first section of the horn. Then, a detailed acoustic FEM model of the first section of the horn is established to calculate its transmission loss. At the same time, this part is simplified as a mathematical model, and the transfer loss equation is derived by using the transfer matrix method. The transmission loss equation indicates that the structure will have infinite amplification of the transfer loss at the periodic frequency. It is proved that the structural design of the horn leads to the insufficient high-frequency capacity of the equipment. Results of this paper can provide a basis for the design and improvement of environmental simulation equipment for high-level traveling-wave acoustic field.

Keywords

High-level acoustic environmental test Traveling-wave tube Transmission loss The transfer matrix method 

References

  1. 1.
    Mixson JS, Roussos LA (1987) Acoustic fatigue: overview of activities at NASA Langley. NASA-N87-24965Google Scholar
  2. 2.
    Clarkson BL (1996) Review of sonic fatigue technology. NASA-N94-29407 Google Scholar
  3. 3.
    Zhenqiang W, Fang R, Wei Z, Fangjin K, Zhengping Z (2010) Research advances in thermal-acoustic testing of aerocraft structures. Missiles Space Veh 306:24–30Google Scholar
  4. 4.
    Xinming L, Jungang Z, Song Y, Liyan G (2010) Design of 1070 m3 reverberation chamber. Spacecraft Environ Eng 27:80–82Google Scholar
  5. 5.
    Hongpu H, Zhenlin J, Zhixiang C, Chen L (2018) One-way coupling method for acoustic performance predictions of perforated tube silencers. J Tianjin Univ (Sci Technol) 51:367–372Google Scholar
  6. 6.
    Selamet A, Ji ZL (1999) Acoustic attenuation performance of circular expansion chambers with extended inlet/outlet. J Sound Vibr 223(2):197–212CrossRefGoogle Scholar
  7. 7.
    Yao W, Yaoqi F, Guosong F, Jiang Y, Bo W (2018) Simulations for evaluation and verification of acoustic design of space station module. Spacecraft Environ Eng 35:330–335Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Yao Wu
    • 1
    Email author
  • Zhiqiang Shen
    • 1
  • Qiang Jiang
    • 1
  • Guiqian Fang
    • 1
  • Xinming Li
    • 1
  • Jungang Zhang
    • 1
  • Gongbo Ma
    • 1
  1. 1.Beijing Institute of Spacecraft Environment EngineeringBeijingChina

Personalised recommendations