驾驶室锤击振动的测试及数据分析

VIBRATION TEST AND ANALYSIS ON OPERATOR CABIN BY MEANS OF HAMMERING

本文以上海-50拖拉机驾驶室安全架为研究对象,对其进行了锤击振动试验。通过数据分析,获得了该安全架的应力分布情况,引起破坏的部位及导致安全性差的原因。提出用抛物线脉冲函数作为计算载荷,对驾驶室进行动强度分析。

Based on the test of operator cabin of Shanghai-50 tractor, the paper deals with its vibration level by means of hammering. Through data analysis, it reaches the results of the stress distribution over the tractor's safety frame, places liable to distruction and unsafely. It proposes to analyse the firmness of operator cabin by means of parabolic-pulse function for load calculation.