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根据《内燃机动力学》原理，将12LDA28型柴油机轴系进行当量转化，利用微机对当量系统进行扭转振动计算，并对两根曲轴上两个减振器的重量误差对实际轴系的自振频率、振幅及振型的影响做出了详细地分析，从而得出两个减振器重量误差在3％（9．9kg）以下时，其自振频率可认为基本不变（变化远小于1％）和较重的减振器应装在I侧曲轴上的结论，解决了现场减振器的重量配套使用问题。
According to the principle of “internal combustion engine dynamics”, the 12LDA28 diesel engine shaft system is equivalently transformed, and the torsional vibration of the equivalent system is calculated by the microcomputer. The weight errors of the two shock absorbers on the two crankshafts are compared with those of the actual shaft system , Amplitude and mode of vibration to make a detailed analysis, which concluded that the two shock absorber weight error of 3% (9.9kg) below, the natural frequency can be considered essentially unchanged (much less than 1% ) And heavier shock absorber should be installed on the crankshaft I conclusion, to solve the problem of supporting the use of the weight of the site shock absorber.