柴油机运转时,由于曲柄连杆机构的惯性和燃气爆发压力等作用,引起缸体振动和变形。在近代高速柴油机上,为了实现轻量化而采取了一系列减重措施,于是,发现有的缸体刚度不足,特别是当高速运转时,缸体的振动和变形更大。由于缸体的结构和受力状况复杂,至今尚没有精确的理论计算。多年来,许多内燃机工 Diesel engine operation, due to the inertia of crank and rod mechanism and gas explosion pressure and other effects, causing the cylinder vibration and deformation. In modern high-speed diesel engines, a series of weight-loss measures have been taken in order to achieve weight reduction. As a result, some of the cylinder bodies are found to have insufficient rigidity, especially when the high-speed operation is performed, and the cylinder body vibrates and deforms more. Due to the complexity of the cylinder structure and stress conditions, there is no accurate theoretical calculation. Over the years, many internal combustion engine workers