四轮定位仪校准装置检测机理及试验研究  

Study on Testing Mechanism and Experimental Research of Four-Wheel Alignment Verification Device

作　　者：杨文武[1] 贺敬良[2] 刘全攀 车跃跃 YANG Wenwu;HE Jingliang;LIU Quanpan;CHE Yueyue(Beijing Haidian Institute of Metrology,Beijing 100083,China;Beijing Information Science&Technology University,Beijing 100192,China;Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京市海淀区计量检测所,北京100083 [2]北京信息科技大学,北京100192 [3]北京理工大学,北京100081

出　　处：《计量科学与技术》2022年第6期54-59,共6页Metrology Science and Technology

摘　　要：基于空间几何分析,建立测量主销倾角的数学模型,研究测量定位参数的检测机理,设计了一款四轮定位仪校准装置。该装置应用球铰结构使模拟主销独立后倾与内倾,避免了合成运动时干涉引起的误差;采用高精度双轴倾角传感器,实现了定位参数的精确测量。运用ANSYS软件对该装置进行有限元模态分析,得出结构的刚度、前6阶固有频率及前6阶振型满足结构要求。试验得出的主销倾角的零位误差、各车轮定位参数的示值误差基本满足校准规范要求,验证了该装置的可行性。Based on the spatial geometric analysis, a mathematical model for measuring the kingpin angle was established, the detection mechanism of the measuring positioning parameters was studied, and a verification device for four-wheel alignment was designed. The device uses the spherical hinge structure to make the simulated kingpin backward and inward tilt independently, avoiding errors caused by interference in the synthetic motion. The dual-axis inclination angle sensor is used to realize the accurate measurement of the positioning parameters. The finite element modal analysis of the device was carried out by ANSYS software, the results showed that the stiffness and the inherent frequency and vibration model of the first six orders meet the requirements of the structure. The zero position error of the kingpin angle and the error of each wheel location parameters obtained from the test met the requirements of the calibration specification, which verified the feasibility of the device.

关 键 词：四轮定位仪 校准装置 主销倾角 刚度分析 

分 类 号：U472[机械工程—车辆工程]