The diesel engine is a complicated machine with many vibration sources, so the traditional vibration analysis and single parameter test method cannot determine the diagnosis accurately.
柴油机结构复杂，振源众多，常规的振动分析及单项指标测试对于故障的定位与诊断精确度不高。
The paper describes the principle and function of the vibration screen characteristic parameter data acquisition analysis system, that designed by using the tecnologe of computer aided test(CAT).
介绍应用计算机辅助试验技术，设计实现的振动筛性能参数微机数据采集分析系统的原理和功能。
Measure the torsional vibration characteristic parameter of the engine and estimate the validity of the model by comparing the results of the test with the results of the simulation.
对某六缸增压柴油机进行扭振测量，获取相关参数，与仿真值相比较，验证模型准确性。
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