BDCD850開壞機(jī)機(jī)架有限元分析及優(yōu)化設(shè)計(jì)

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中圖分類號(hào)：TG333.5；TB115.1 文獻(xiàn)標(biāo)志碼：B

Finite element analysis and optimization design of BDCD850 breaking down mill frame

XIE Erhu1，2，GUO Xianping1，2， ZHANG Tuo

（1.CISDI Equipment Co.，Ltd.，Chongqing ，China； 2.Chongqing Key Laboratory for Metallurgical Intelligent Equipment， Chongqing ， China）

Abstract： To achieve reasonable lightweighting for the breaking down mill frame，the dangerous section shape and the overallsize of the frame is analized.Firstly，the strength，stifness，and hazardous section position of the frame is determined by static strength stress analysis； then，with the goal of minimizing the equivalent stress value，the sub model analysis method and Workbench optimization module are used to optimize the composite fillt size parameters； finally，a response surface model is constructed based on the Box Behnken method，and the analytic hierarchy process and particle swarm optimization algorithm are used to find the optimal combination of rack structural parameters.The overall weight of the optimized frame decreased by about 4701kg ，and the maximum stress at the dangerous section decreased by about 8.845 MPa. The optimization results can reduce production costs by ensuring the strength and stiffness of the billet opening machine frame.

Key words： breaking down mill frame； response surface model； lightweight design； structure optimization；finite element

0引言

隨著機(jī)械、汽車、能源等制造行業(yè)的穩(wěn)定發(fā)展，市場(chǎng)對(duì)優(yōu)特鋼產(chǎn)品的需求量迅速增加[1-2]，開壞機(jī)是優(yōu)特鋼棒線材及大型型鋼生產(chǎn)線的重要軋制設(shè)備[3]，其性能對(duì)社會(huì)經(jīng)濟(jì)的發(fā)展發(fā)揮著重要的作用。（剩余7302字）