The transverse vibration of composite engine block was so serious that it was necessary to take measures to improve this defect.
复合材料发动机机体的横向振动是比较严重，需要采取措施改善横向振动特性。
Numerical calculation of stress field of engine block made of composite material is carried out by means of three dimensional finite element method.
采用三维有限元对复合材料发动机机体的应力场进行了数值计算。
This research proves that engine block made by composite material is feasible, and also provides ground for constructional design of engine block made of composite material.
研究验证了复合材料制造发动机机体的可行性，并为复合材料发动机机体的结构设计提供了依据。
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