工程機械柔性機械臂振動的混合可靠性分析
發(fā)布時間:2018-09-19 11:09
【摘要】:基于概率-區(qū)間混合不確定性模型及結(jié)構(gòu)可靠性分析方法,針對工程機械多關(guān)節(jié)柔性機械臂的振動可靠性進行研究。根據(jù)機械臂不確定參數(shù)的信息完備程度,通過概率變量和區(qū)間變量對不確定參數(shù)進行度量。基于柔性臂架有限元仿真數(shù)據(jù),構(gòu)建機械臂參數(shù)與結(jié)構(gòu)固有頻率關(guān)系的徑向基函數(shù)代理模型,進而通過概率-區(qū)間混合可靠性分析方法對機械臂共振的失效概率進行區(qū)間估計。最后將該方法應(yīng)用于實際產(chǎn)品,通過工程實例驗證了方法的有效性。
[Abstract]:Based on the probabilistic and interval mixed uncertainty model and structural reliability analysis method, the vibration reliability of flexible manipulator with multiple joints of construction machinery is studied. According to the completeness of the uncertain parameters of the manipulator, the uncertain parameters are measured by the probabilistic variables and the interval variables. Based on the finite element simulation data of flexible arm, the radial basis function agent model of the relationship between the mechanical arm parameters and the natural frequency of the structure is constructed, and then the failure probability of the manipulator resonance is estimated by the method of probabilistic and interval mixed reliability analysis. Finally, the method is applied to practical products, and the effectiveness of the method is verified by an engineering example.
【作者單位】: 湖南大學汽車車身先進設(shè)計制造國家重點實驗室;中聯(lián)重科股份有限公司;
【基金】:國家自然科學基金資助項目(11172096,51222502)
【分類號】:TP241
[Abstract]:Based on the probabilistic and interval mixed uncertainty model and structural reliability analysis method, the vibration reliability of flexible manipulator with multiple joints of construction machinery is studied. According to the completeness of the uncertain parameters of the manipulator, the uncertain parameters are measured by the probabilistic variables and the interval variables. Based on the finite element simulation data of flexible arm, the radial basis function agent model of the relationship between the mechanical arm parameters and the natural frequency of the structure is constructed, and then the failure probability of the manipulator resonance is estimated by the method of probabilistic and interval mixed reliability analysis. Finally, the method is applied to practical products, and the effectiveness of the method is verified by an engineering example.
【作者單位】: 湖南大學汽車車身先進設(shè)計制造國家重點實驗室;中聯(lián)重科股份有限公司;
【基金】:國家自然科學基金資助項目(11172096,51222502)
【分類號】:TP241
【相似文獻】
相關(guān)期刊論文 前10條
1 張慶,王華坤,張世琪;組合柔性機械臂變形及滯遲特性分析[J];機械設(shè)計;2005年05期
2 劉廣瑞;柔性機械臂振動控制研究[J];機電產(chǎn)品開發(fā)與創(chuàng)新;2005年03期
3 張雪蓮;潘鐵強;;柔性機械臂控制方法的研究[J];科技信息(學術(shù)研究);2006年09期
4 崔玲麗;張建宇;高立新;肖志權(quán);;柔性機械臂系統(tǒng)動力學建模的研究[J];系統(tǒng)仿真學報;2007年06期
5 李坤;,
本文編號:2249958
本文鏈接:http://sikaile.net/kejilunwen/zidonghuakongzhilunwen/2249958.html
最近更新
教材專著