分析新型柴油机机体的结构表明,提高刚度是其发展的主要趋向。在大多数情况下,机体做成焊接式或组合式(焊铸结构)。当机体转为受力的焊接结构时,提出的迫切任务是要足够准确地评定其强度和刚度,以保证曲轴、主轴承、气缸体、气缸套、油底壳及其他零件的正常工作。机体的各组成部分彼此牢固地连成一个统一的空间结构,承受内部和外部的集中或均布 Analysis of the structure of the new diesel engine body shows that increasing the stiffness is the main trend of its development. In most cases, the body is welded or combined (welded construction). When the body is transformed into a stressed welded structure, an urgent task is to evaluate its strength and stiffness sufficiently accurately to ensure the proper operation of the crankshaft, main bearing, cylinder block, cylinder liner, oil pan and other components. The components of the body firmly connected with each other into a unified space structure, to withstand the internal and external concentration or uniform