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大家知道,在活塞侧推力冲击作用下的强烈振动是接触水的气缸表面的空穴浸蚀的主要原因。气缸套的振动强度取决于柴油机的结构参数(气缸尺寸、材料、运动件的质量、配缸间隙的大小、曲轴转速等)。 该项研究表明,增大壁厚并于气缸套上采用辅助支承,实质上能降低气缸套摆动的加速度,从而提高其使用期限。在柴油机振动的频谱中,占主导地位的气缸套高频振动(1000～4000赫兹),在许多情况下,决定着总的振动水平。
As we all know, the strong vibration under the action of the thrust on the piston side is the main reason for hole erosion on the surface of the cylinder contacting the water. The vibration intensity of the cylinder liner depends on the structural parameters of the diesel engine (cylinder size, material, mass of moving parts, size of cylinder clearance, crankshaft speed, etc.). The study shows that increasing the wall thickness and using ancillary support on the cylinder liner substantially reduces the acceleration of the cylinder liner sway and thus increases its useful life. In the vibration spectrum of diesel engines, dominating cylinder liner dithering (1000-4000 Hz), in many cases, determines the overall level of vibration.