运动参量校准装置运动特性分析

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (13) : 31-34.

论文

运动参量校准装置运动特性分析

鲁旭涛;孙运强;李静

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Movement Characteristics Analysis of Motorial Parameters Calibration Apparatus

LU Xu-Tao1,2, SUN Yun-Qiang1,2, LI Jing1,2

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文章历史 +

摘要

设计了一套复合曲柄滑块结构，以大曲柄连杆机构产生的往复直线运动频率为基波，以小曲柄连杆机构变频产生的往复直线运动频率为二次谐波，即可叠加产生同时包含位移、速度、加速度的运动信号，从而实现对位移、速度、加速度同时进行多参数校准。从运动学和动力学分析的角度研究曲柄和连杆，连杆和滑块的相对运动即位移、速度和加速度随着时间的变化规律，曲柄连杆机构惯性力及滑块作用力规律，建立了运动装置曲柄连杆机构动力学和运动学模型，通过曲柄连杆机构运动受力理论分析系统运动规律，从动力学角度分析曲柄连杆机构的运动和质量分布，计算了往复惯性力和旋转惯性力，实际测试结果表明速度、加速度的测量误差小于1%。

Abstract

A double slider-crank mechanism was developed to calibrate the motorial parameters testing equipment. The signal of reciprocating linear motion by one slider-crank mechanism developed was as fundamental frequency, the signal of reciprocating linear motion by another slider-crank mechanism developed was as second harmonic frequency, it can be superimposed to produce displacement, velocity and acceleration signal, so as to realize the displacement, velocity, acceleration and multiple parameters calibration. The crank and connecting rod, law of displacement, velocity and acceleration was researched, regularity of inertia force and the slider forces from the angle of kinematics and dynamics, dynamics and kinematics model of double slider-crank mechanism was set up, analyzed double slider-crank mechanism motion law by theoretical analysis, analyzed mechanism motion and mass distribution, calculated the reciprocating inertial force and rotational inertia force. Measurement results indicated that the error of velocity and acceleration was within 1%.

导出引用

鲁旭涛;孙运强;李静. 运动参量校准装置运动特性分析[J]. 振动与冲击, 2014, 33(13): 31-34

LU Xu-Tao;SUN Yun-Qiang;LI Jing;. Movement Characteristics Analysis of Motorial Parameters Calibration Apparatus[J]. Journal of Vibration and Shock, 2014, 33(13): 31-34