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空間并聯(lián)機(jī)構(gòu)彈性動(dòng)力學(xué)優(yōu)化設(shè)計(jì)
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國(guó)家自然科學(xué)基金資助項(xiàng)目（51005138）、山東省優(yōu)秀中青年科學(xué)家科研獎(jiǎng)勵(lì)基金資助項(xiàng)目(BS2012ZZ008),、山東科技大學(xué)杰出青年基金資助項(xiàng)目(2011KYJQ102),、江蘇省數(shù)字化制造技術(shù)重點(diǎn)建設(shè)實(shí)驗(yàn)室開放課題資助項(xiàng)目(HGDML-1104)和山東省高校優(yōu)秀科研創(chuàng)新團(tuán)隊(duì)計(jì)劃資助項(xiàng)目


Elasto-dynamics Optimal Design of Spatial Parallel Mechanism
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    摘要:

    研究了4-UPS-UPU 5自由度空間并聯(lián)機(jī)構(gòu)的彈性動(dòng)力學(xué)優(yōu)化設(shè)計(jì),?；贙ED方法建立了并聯(lián)機(jī)構(gòu)的彈性動(dòng)力學(xué)模型,，以并聯(lián)機(jī)構(gòu)運(yùn)動(dòng)過程中5個(gè)驅(qū)動(dòng)桿的最大變形能和最大動(dòng)應(yīng)力限制條件作為約束方程,，將機(jī)構(gòu)的總質(zhì)量函數(shù)和基頻函數(shù)整合成一個(gè)綜合優(yōu)化目標(biāo)函數(shù),，分別采用fmincon函數(shù)和遺傳算法進(jìn)行優(yōu)化設(shè)計(jì),，確定了并聯(lián)機(jī)構(gòu)動(dòng)平臺(tái)質(zhì)量和5個(gè)驅(qū)動(dòng)桿截面積的最佳參數(shù)值,，驗(yàn)證了以上優(yōu)化方法和優(yōu)化結(jié)果的正確性與合理性。

    Abstract:

    The elasto-dynamics optimal design of 4-UPS-UPU 5-DOF spatial parallel mechanism was studied. The elasto-dynamic models of 4-UPS-UPU spatial parallel mechanism were established based on kineto-elasto dynamics. The total mass function and base frequency function of the parallel mechanism were integrated into a comprehensive optimization objective function, and the restrictive condition of the maximum deformation energy and the maximum dynamic stress of five driving limbs were considered as constraint equations to perform the optimal design. The optimized methods, such as fmincon function in matlab software and genetic algorithms were usedrespectively. The optimal parameters of the mass of moving platform and the sectional area of five driving limbs were determined based on the optimal design. And the correctness and rationality of the optimized method and results were verified.

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陳修龍,張中供,鄧 昱.空間并聯(lián)機(jī)構(gòu)彈性動(dòng)力學(xué)優(yōu)化設(shè)計(jì)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2014,45(9):318-323. Chen Xiulong, Zhang Zhonggong, Deng Yu. Elasto-dynamics Optimal Design of Spatial Parallel Mechanism[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(9):318-323.

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  • 收稿日期:2013-10-12
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  • 在線發(fā)布日期: 2014-09-10
  • 出版日期: 2014-09-10
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