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基于改進(jìn)PSO的復(fù)雜機(jī)械產(chǎn)品裝配質(zhì)量在線優(yōu)化
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國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973計(jì)劃)資助項(xiàng)目（2011CB013406）


Online Optimization for Assembly Quality of Complex Mechanical Products Based on Improved PSO
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    摘要:

    通過構(gòu)建面向裝配精度的質(zhì)量控制點(diǎn)公差分配模型,，實(shí)現(xiàn)了裝配過程中不同類型質(zhì)量控制點(diǎn)間非線性耦合關(guān)系的量化表達(dá),，揭示裝配誤差累積規(guī)律；利用混沌理論與雙階段變異策略對多目標(biāo)粒子群算法進(jìn)行了改進(jìn),；在裝配過程開始前,，計(jì)算各質(zhì)量控制點(diǎn)公差初始分配結(jié)果,，當(dāng)上游質(zhì)量控制點(diǎn)根據(jù)初始分配結(jié)果被實(shí)例化后，啟動再分配機(jī)制,，結(jié)合實(shí)例化數(shù)據(jù)對公差分配模型再次求解,，為后續(xù)質(zhì)量控制點(diǎn)實(shí)例化提供決策支持，實(shí)現(xiàn)裝配質(zhì)量在線優(yōu)化和前饋控制；以某型主錐總成裝配過程中選墊與主齒螺母擰緊工序?yàn)槔?，?yàn)證了理論的有效性和可行性,。

    Abstract:

    The tolerance distribution model of quality control points oriented to assembly accuracy was established to characterize the nonlinear coupling relationship among the different kinds of quality control points and reveal accumulation law of assembly error. The chaos theory and two-stage variation strategy were adopted to improve multiple objective particle swarm optimization (MOPSO). Before the assembly process, the initial distribution results of quality control points were calculated. The redistribution mechanism was implemented when upstream quality control points were instantiated. Then the tolerance of downstream quality control points would be redistributed to provide decision support for the instantiation of subsequent quality control points. The online optimization and former feed-forward control of assembly quality were achieved. The online optimization of gasket-selection and tighten lock nut in the active gear axle assembly process was given to verify the feasibility and effectiveness of the proposed method.

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劉明周,趙志彪,葛茂根,王小巧,凌琳.基于改進(jìn)PSO的復(fù)雜機(jī)械產(chǎn)品裝配質(zhì)量在線優(yōu)化[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2013,44(6):246-252. Liu Mingzhou, Zhao Zhibiao, Ge Maogen, Wang Xiaoqiao, Ling lin. Online Optimization for Assembly Quality of Complex Mechanical Products Based on Improved PSO[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(6):246-252.

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  • 在線發(fā)布日期: 2013-05-28
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