船用低速发动机缸套典型的故障是凸缘区裂纹和过度磨损。船用 B&W 柴油机在修理中有15%缸套出现裂纹。这种发动机活塞环和缸套初期磨损也很高。为了探索缸套三种振动对故障的影响,用应变电测法在三条船上的ДKPH74/160-2柴油机上进行了研究。用电阻应变梁作传感器配合应变仪和示波器测量了缸套的振动和位移。测量结果表明,振动的周期相当于曲轴一转的时间,振 Typical low-speed marine engine liners are cracks and excessive wear in the flange area. Marine B & W diesel engines crack 15% of liner during repair. This engine piston ring and cylinder liner wear is also high initial. In order to explore the impact of three kinds of vibration of cylinder liner on the fault, the strain measurement method was used on ДKPH74 / 160-2 diesel engine on three ships. The strain and strain of the cylinder liner were measured by using the strain gauge strain gauge and oscilloscope as the sensor. The measurement results show that the period of vibration is equivalent to the time of crankshaft rotation, vibration