十字梁式小型智能推力传感器设计  

Design of cross-beam small intelligent thrust sensor

作　　者：贺勃睿 卢洪义 赵磊 徐文聪 HE Borui;LU Hongyi;ZHAO Lei;XU Wencong(School of Aircraft Engineering,Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]南昌航空大学飞行器工程学院,江西南昌330063

出　　处：《传感器与微系统》2024年第12期89-92,共4页Transducer and Microsystem Technologies

基　　金：江西省重点研发计划资助项目(20201BBE51002)。

摘　　要：小型航空发动机推力小,测试要求高,且推力测试现场由于振动频率的干扰会进一步影响推力的测试精度。针对上述问题,设计了固有频率高、动态特性良好的十字梁型推力测试传感器,具有智能化、测试灵敏度高、结构简单、安装方便等特点。为避免传输过程中测试信号受到干扰,智能信号处理系统采用CAN总线传输技术。经优化后的测试系统灵敏度提高24%。传感器一阶模态为3457 Hz,动态特性结果证明共振频率高于工况要求,满足固有频率高的设计目标。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 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] V241.7[自动化与计算机技术—控制科学与工程]