航空发动机推力测量用多分量盒式天平设计综述

Review of Multi-Component Box Balance for Aeroengine Thrust Measurement

中文关键词:  推力测量  盒式天平  多分量  应变  推力校准  航空发动机

英文关键词:thrust measurement  box balance  multi-component  strain  thrust calibration  aeroengine

中文摘要:

      多分量推力测量试验是获取航空发动机飞行推力数据的直接手段，该技术已经成为航空发动机试验领域的必备关键技 术之一。历经多年发展，结构形式取得了诸多突破。以航空工程为背景，针对航空发动机推力测量的测试需求，梳理了多分量盒 式天平的技术应用，总结了单分量盒式天平、3分量盒式天平、6分量盒式天平的结构组成、尺寸大小、材料选择，分析了不同类型 盒式天平中弹性连杆的使用数量和布局形式，研究了发动机试验时推力载荷的传递路径，深度对比了不同类型盒式天平的性能参 数。在此基础上，阐述了多分量盒式天平发展的关键技术，包括降低力学耦合影响、实现小推力精确测量、研发环保推力校准系统 和开展多学科联合仿真等技术，为盒式天平设计提供了新思路。

英文摘要:

      The multi-component thrust measurement test is a direct means of obtaining flight thrust data for aeroengines. This technology has become one of the indispensable key technologies in the field of aeroengine testing. After years of development, many breakthroughs have been made in the structural form of multi-component box balance used for thrust measurement. Targeting the testing requirements for aeroengine thrust measurement in the context of aviation engineering, the technical applications of multi-component box balance are sorted out, the structural composition, size, and material selection of single-component box balances, three-component box bal? ances, and six-component box balances are summarized. The number and layout of elastic connecting rods in different types of box bal? ances are analyzed. The transmission paths of thrust during aeroengine tests are studied. In-depth comparisons of the performance parameters of different types of box balances are conducted. On this basis, the key technologies for developing multi-component box bal? ance are elaborated, including reducing the influence of mechanical coupling, realizing the precise measurement of low thrust, developing environmentally friendly thrust calibration systems, and carrying out multi-disciplinary joint simulation, providing new ideas for box bal? ance design.