等離子切割除塵裝置支撐結(jié)構(gòu)優(yōu)化設(shè)計(jì)

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中圖分類號(hào)：TH122 文獻(xiàn)標(biāo)志碼：B DOI：10.19710/J.cnki.1003-8817.20240309

Optimal Design of Support Structure of Plasma Cutting Dust Removal Device

Ma Xudong'，Gao Wenqiang'，Sun Li2 （1.MechanicalEngeringIsitute，ChangchunAutomobileIndustryInstitute，Changchun303;2.FAWJiefangAutomobileCo， Ltd.， Changchun 130011）

Abstract： The support base is an important structure for the stable operation of the plasma cutting dust removal device.Inorder to enhance operation stability this device，this paper makes a structural optimization analysis of the support base based on the ANSYS Workbench software，including sensitivity analysis for design parameterof each structure，and identified 3factors which have the greatest influenceon the stable operation of support base，namely upper wall tickness，support wall thicknessand support height.Asecond-order mathematical responsesurfacemodel isconstructedbasedontheexperimentaldesignmethods，and iterativeoptimizationismadethroughmulti-objective genetic algorithm.The simulation results show that the natural frequency of the bearing increases by 20.47% and the maximum stress concentration decreases by 6.57% .Theoptimal Pareto solution of the parameter variables is achieved withinthedesignrequirementsandthedurabilityofthebeam issignificantlyimproved，which meets theoptimization requirements.

Keywords：Design parameter optimization，Sensitivity analysis，Response surface method，Multiobjective optimization

1前言

構(gòu)件對(duì)設(shè)備靜力學(xué)性能影響尤為顯著[3-4]，其中，立面支撐支座在工作時(shí)受到壓力和切向應(yīng)力，且工作中受等離子切割、電機(jī)振動(dòng)和風(fēng)道氣體流動(dòng)的影響，由于其工作環(huán)境惡劣、制造工藝和安裝條等離子切割除塵裝置是集成流體力學(xué)、靜力學(xué)、動(dòng)力學(xué)和材料學(xué)的復(fù)雜系統(tǒng)機(jī)構(gòu)[1-2]。（剩余6273字）