薄板件任意点法向力学参数测量仪误差建模与仿真  

Error Model and Simulation to Arbitrary Point of Sheet Metal in Normal Mechanical Parameter Measurement Instrument

作　　者：曾红[1] 孙振忠[2] 

机构地区：[1]哈尔滨理工大学机械动力工程学院,哈尔滨150080 [2]东莞理工学院机电工程系,广东东莞523808

出　　处：《机械工程师》2007年第10期56-58,共3页Mechanical Engineer

摘　　要：文中按Denavit-Hartenberg方法,建立了薄板件任意点法向力学参数测量仪末端测头中心相对于机座参考坐标系的测量运动数学模型,在此基础上运用矩阵函数的全微分方法,建立起测量运动模型参数误差传递到末端测头中心坐标之间的误差传递关系,并通过计算机仿真验证了所建立误差模型的正确性。By using homogenous coordinate transformation principle and Denavit-Hartenberg analysis method, a measurement kinematics model and an error model to arbitrary point of sheet metal in normal mechanical parameter measurement instrument, which the movement of the probe center is relative to machine reference frame is constructed. On the basis of using wielding matrix function total differential method, building up the error delivery relation of parameter error of measuring motion model transform to the probe center, and having verified what be built the error model correctness by computer simulates, and on the premise of small error, the error model can reflect actual error similarly. On the influencing factors, error is enlarge mainly in the process of delivery from angle error, while length error are very minor in error effects. This research can establish firm theory base for studying the measuring-error of portable type measures instrument and its measuring accuracy.

关 键 词：测量仪 误差模型 计算机仿真 

分 类 号：TH115[机械工程—机械设计及理论]