基于音爆测量试验的外式天平及支撑装置研制

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中图分类号：V211.74 DOI：10.3969/j.issn.1004-132X.2025.11.023

Abstract：To study the sonic boom characteristics aircraft in a supersonic flow field，a set specialized external balance support device was developed to meet the measurement requirements aerodynamic loads. By adopting multi-component coupling series connection，setting a new type hybrid Wheatstone measuring bridge， conducting finite element method analyses optimizations，two critical issues were resolved：the mismatch between force moment loads caused by severe model center deviation frombalance element centers in traditional exteral balances， the interconnection reliability is sues stemming from inherent clearance coupling efects in multi-linkage systems. The aerodynamic force component may be precisely measured by Wheatstone bridge's measuring mechanism during sonic boom measurement wind tunnel tests.The results show that the measurement results the external balance are stable reliable， may effectively capture the changes in aerodynamic force，providing key data support for the measurement sonic boom characteristics.

Key words：sonic boom；wind tunnel test；balance；support device

0 引言

随着航空航天技术的迅速发展，自突破音障以来，欧美多国对音爆现象展开了系统研究。（剩余7637字）