商用车驾驶室模态测试与误差来源分析

Modal Test for a Cab of a Commercial Vehicle and Error Analysis

对商用车驾驶室振动工况进行分析,提出模态分析的边界条件和载荷条件。根据模态分析的约束和载荷条件,提出进行模态分析的试验流程和试验设备。对某型商用车进行模态测试,并对测试结果进行了分析。

The vibration condition of the commercial vehicle cab is analyzed and the boundary constrains and load conditions are proposed. The test procedure and instruments are suggested according to the vibration condition. The modal analysis of a eommereial vehicle cab is carried out. We provide some conclusions in the end.