Small aero engines have small thrust and high test requirements,and the thrust test site will further affect the test precision of thrust due to the interference of vibration fre-quency. Aiming at the above problems,a cross beam thrust test sensor with high natural fre-quency and good dynamic characteristics is designed,which has the characteristics of intelli-gence,high test sensitivity,simple structure and convenient installation. In order to avoid in-terference of the test signal during transmission,the intelligent signal processing system adopts CAN bus transmission technology. The sensitivity of optimized test system is improved by 24％. The first-order modal of the sensor is 3457 Hz,and the dynamic characteristics show that the resonant frequency is higher than the working condition requirements,which meets the design goal of high natural frequency.
关键词
力传感器/有限元分析/灵敏度/动态特性
Key words
force sensor/finite element analysis/sensitivity/dynamic characteristics
维普
万方数据