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電液調(diào)速器彈性連接板優(yōu)化設(shè)計(jì)
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重慶市科技攻關(guān)資助項(xiàng)目 (CSTC2008AB3048)


Optimization for Elastic Connecting Plates of Electric-hydraulic Speed Governor
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    摘要:

    結(jié)合電液調(diào)速器的調(diào)節(jié)特性和結(jié)構(gòu)特點(diǎn)，對彈性連接板進(jìn)行了優(yōu)化設(shè)計(jì)。通過精確受力分析，采用有限元方法對連接板初始設(shè)計(jì)進(jìn)行靜力學(xué)分析。選取連接板中部槽口處多個(gè)尺寸為設(shè)計(jì)變量，以中部更大的變形位移為優(yōu)化目標(biāo)，以高可靠性和良好的響應(yīng)為約束條件，建立了優(yōu)化設(shè)計(jì)的數(shù)學(xué)模型。采用不同配置應(yīng)用COSMOSWorks的OPTSTAR模塊對連接板進(jìn)行優(yōu)化分析，并通過模擬連接板的實(shí)際工況對有限元計(jì)算精度進(jìn)行了試驗(yàn)驗(yàn)證。分析結(jié)果表明，優(yōu)化后的連接板增大了Z方向變形位移，有效地提高了連接板的調(diào)節(jié)靈敏度和在系統(tǒng)中的可靠性能。

    Abstract:

    Considering the regulating and structural characteristics of electric-hydraulic speed governor, an optimization study on elastic connecting plates was conducted. Firstly, on the basis of accurate force analysis, static analysis was done for the initial design of connecting plates by using the finite element method. Then, the mathematical model of the optimization design was established, which took several geometrical dimensions near the connecting plate’s middle rabbets as design variables, larger deformation displacement of the middle part as the optimization objective, and high reliability and good response as the constraint condition. Finally, an optimization analysis was carried out for different configurations by using COSMOSWorks/OPTSTAR, the actual working condition of the connecting plate was simulated and the calculation precision of the finite element method was verified through the experiments. The analysis of the result revealed that after optimization, the connecting plate increased Z-axial deformation displacement of the connecting plate, which can effectively improve the plate’s regulating sensitivity and reliability in the system.

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李云松,陳小安,楊恩志,吳國祥,周明紅.電液調(diào)速器彈性連接板優(yōu)化設(shè)計(jì)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(5):32-36. Li Yunsong, Chen Xiaoan, Yang Enzhi, Wu Guoxiang, Zhou Minghong. Optimization for Elastic Connecting Plates of Electric-hydraulic Speed Governor[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(5):32-36.

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  • 在線發(fā)布日期: 2012-06-07
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