柔順機(jī)構(gòu)PR偽剛體動(dòng)力學(xué)建模與特性分析

doi:10.6041/j.issn.1000-1298.2013.03.041

首頁 > 過刊瀏覽>2013年第44卷第3期 >225-229. DOI:10.6041/j.issn.1000-1298.2013.03.041

柔順機(jī)構(gòu)PR偽剛體動(dòng)力學(xué)建模與特性分析
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                        10.6041/j.issn.1000-1298.2013.03.041
                    
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基金項(xiàng)目:國家自然科學(xué)基金資助項(xiàng)目（51175006）

Dynamic Modeling and Characteristic Analysis of Compliant Mechanisms Based on PR Pseudo-rigid-body Model

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基于偽剛體模型，綜合考慮柔性桿的橫向變形和軸向變形的影響，建立了末端受力作用下柔順機(jī)構(gòu)的PR偽剛體動(dòng)力學(xué)模型，應(yīng)用拉格朗日方程推導(dǎo)了其動(dòng)力學(xué)方程。從方程特征、響應(yīng)曲線等方面顯示了PR偽剛體動(dòng)力學(xué)模型的性能變化。數(shù)值分析結(jié)果表明：PR偽剛體模型引入了P副來模擬柔性桿件的軸向運(yùn)動(dòng)，可以更真實(shí)地體現(xiàn)出柔順機(jī)構(gòu)的動(dòng)力學(xué)特性，更適合于柔順機(jī)構(gòu)的動(dòng)力學(xué)分析與設(shè)計(jì)。

Abstract:

Based on the pseudo-rigid-body model (PRBM), a PR pseudo-rigid-body dynamic model (PRBDM) subjected to a force at the end was developed considering the effects of transverse deformation and axial deformation of flexible elements in compliant mechanisms comprehensively. The dynamic equation of the PR PRBDM was derived by using the Lagrange equation. The changes of performances of the PR PRBDM were showed in the equation feature and dynamic responses. The numerical analysis results indicate that the PR PRBDM proposed can be used to show the real dynamic characteristic of compliant mechanisms by introducing a prismatic pair to simulate the axial movement of flexible elements in compliant mechanisms and was suitable for the dynamics analysis and design of compliant mechanisms.

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余躍慶,徐齊平.柔順機(jī)構(gòu)PR偽剛體動(dòng)力學(xué)建模與特性分析[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2013,44(3):225-229. Yu Yueqing, Xu Qiping. Dynamic Modeling and Characteristic Analysis of Compliant Mechanisms Based on PR Pseudo-rigid-body Model[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(3):225-229.

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在線發(fā)布日期: 2013-02-25
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