关键词: 计算机应用, 轻量化设计, 最小二乘回归, 液压机机身

Abstract: The parametric finite element model of hydraulic pressure (HP) is built. Also, orthogonal experiment is used to simulate actual work condition for calculating stress and angular distortion. Using data from related experiments, the linear relation between HP’s main structural parameters and its maximal stress, maximal angular distortion and weight is get according to the regression model. The regression model is established based on least square method. Under Kurd-Tark condition, the optimal mathematic model is built. Also, reasonable lightweight design plan is proposed through simulative calculation. It is showed that the effects of lightweight design are obvious, the improved plan is in accordance with actual work condition.

Key words: application, lightweight design, least square method, hydraulic pressure