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在分析了柴油机机体结构和作用载荷特点的基础上，提出了对其用子结构方法建模并结合参数二次规划法求解的策略进行精细分析。文中给出了三种机体的计算实例。
Based on the analysis of the structure of diesel engine and the characteristics of its acting load, this paper proposes a detailed analysis on the strategy of sub-structure modeling combined with the quadratic programming method. The article gives three examples of the calculation of the body.