考虑制造误差的摆动导杆机构运动位置可靠性分析
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摘要
制造误差会影响机构性能,故制造误差对机构运动可靠性的影响需要予以研究。以摆动导杆机构为对象,基于误差叠加原理和一阶泰勒展开,建立了包含机构尺寸误差、转动副间隙误差的机构位置误差计算模型,利用该误差模型,考虑各个原始输入误差的随机性,推导了摆动导杆机构运动位置可靠性数学模型,以进行机构运动位置可靠性计算和设计。在整个求解过程中,不需根据机构的运动关系建立、求解复杂的解析数学方程,使该建模方法同样适用于解决其他机构的运动位置可靠性问题。
The manufacture errors of mechanism will influence the performance,so the analysis of manufacture errors on motion reliability of mechanism should be carried out.Taking oscillating-guide-bar mechanism for example in this paper,based on the error superposition principle and the first order Taylor approach,error model considering original errors from kinematic parameters describing the mechanism's geometry,clearance errors of revolving pair are presented.Based on the error model,considering the randomness of every input error component,math model of motion position reliability of oscillatingguide-bar mechanism is deduced,so that motion position reliability of the mechanism can be calculated.The scheme had no need to deduce or solve the complex analytical equations,the method of establishing the mathematical model is also suitable for calculating motion position reliability of other mechanism.
The manufacture errors of mechanism will influence the performance,so the analysis of manufacture errors on motion reliability of mechanism should be carried out.Taking oscillating-guide-bar mechanism for example in this paper,based on the error superposition principle and the first order Taylor approach,error model considering original errors from kinematic parameters describing the mechanism's geometry,clearance errors of revolving pair are presented.Based on the error model,considering the randomness of every input error component,math model of motion position reliability of oscillatingguide-bar mechanism is deduced,so that motion position reliability of the mechanism can be calculated.The scheme had no need to deduce or solve the complex analytical equations,the method of establishing the mathematical model is also suitable for calculating motion position reliability of other mechanism.
引文
[1]国志刚.机构可靠性若干专题研究[D].西安:西北工业大学,2006.
[2]王亚平,聂宏,王永娟.步枪三发点射机构的运动可靠性研究[J].南京理工大学学报.2008,36(6):687-690
[3]Swift K G,Raines M,Booker J D.Advances in probabilistic design:manufacturing knowledge and applications[J].IMech E(Institution of Mechanical Engineering),2001,215(Part B):297-313.
[4]师忠秀,刘红,秦世安.空间机构的可靠性分析与综合[J].山东纺织工学院学报,1994(04):8-13.
[5]黄玮,冯蕴雯,吕震宙等.考虑铰链运动副间隙的机构运动可靠性分析模型[J].机械强度,2007,29(2):264-268
[6]纪玉杰,孙志礼,李良巧.典型机构运动可靠性的仿真研究[J].机械与电子,2005(12):67-73
[7]邸海燕,张庆功.摆动导杆机构运动特性的解析法研究[J].轻工机械,2009,27(2):57-61
[8]国志刚,冯蕴雯,冯元生.摆动推杆盘形凸轮机构运动精度可靠性分析[J].机械科学与技术,2006(02):200-203+228.
[9]纪玉杰,孙志礼,李良巧.一种机构运动可靠性的研究方法[J].机械与电子,2006(5):57-60
[10]孙现龙,廖勇刚,余心宏.磨损对曲柄压力机滑块机构运动可靠性的影响[J].机械传动,2005,29(4):58-61
[2]王亚平,聂宏,王永娟.步枪三发点射机构的运动可靠性研究[J].南京理工大学学报.2008,36(6):687-690
[3]Swift K G,Raines M,Booker J D.Advances in probabilistic design:manufacturing knowledge and applications[J].IMech E(Institution of Mechanical Engineering),2001,215(Part B):297-313.
[4]师忠秀,刘红,秦世安.空间机构的可靠性分析与综合[J].山东纺织工学院学报,1994(04):8-13.
[5]黄玮,冯蕴雯,吕震宙等.考虑铰链运动副间隙的机构运动可靠性分析模型[J].机械强度,2007,29(2):264-268
[6]纪玉杰,孙志礼,李良巧.典型机构运动可靠性的仿真研究[J].机械与电子,2005(12):67-73
[7]邸海燕,张庆功.摆动导杆机构运动特性的解析法研究[J].轻工机械,2009,27(2):57-61
[8]国志刚,冯蕴雯,冯元生.摆动推杆盘形凸轮机构运动精度可靠性分析[J].机械科学与技术,2006(02):200-203+228.
[9]纪玉杰,孙志礼,李良巧.一种机构运动可靠性的研究方法[J].机械与电子,2006(5):57-60
[10]孙现龙,廖勇刚,余心宏.磨损对曲柄压力机滑块机构运动可靠性的影响[J].机械传动,2005,29(4):58-61