中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2014年
23期
3147-3150
,共4页
费致根%徐小洁%郭俊杰
費緻根%徐小潔%郭俊傑
비치근%서소길%곽준걸
五坐标测量机%参数辨识%非接触式测量%激光测量
五坐標測量機%參數辨識%非接觸式測量%激光測量
오좌표측량궤%삼수변식%비접촉식측량%격광측량
five-coordinate measuring machine%parameter identification%non-contact measure-ment%laser measurement
针对所研发的非接触式五坐标测量机,介绍了其系统组成及工作原理。采用多体运动学理论与齐次坐标变换的方法建立了系统的测量数学模型。对于数学模型中的未知几何参数,提出了基于测量实物基准的参数辨识方法,实现了对三个未知几何参数的辨识。实验结果表明该方法是有效、可行的,三个几何参数辨识的重复误差都在2μm以内。
針對所研髮的非接觸式五坐標測量機,介紹瞭其繫統組成及工作原理。採用多體運動學理論與齊次坐標變換的方法建立瞭繫統的測量數學模型。對于數學模型中的未知幾何參數,提齣瞭基于測量實物基準的參數辨識方法,實現瞭對三箇未知幾何參數的辨識。實驗結果錶明該方法是有效、可行的,三箇幾何參數辨識的重複誤差都在2μm以內。
침대소연발적비접촉식오좌표측량궤,개소료기계통조성급공작원리。채용다체운동학이론여제차좌표변환적방법건립료계통적측량수학모형。대우수학모형중적미지궤하삼수,제출료기우측량실물기준적삼수변식방법,실현료대삼개미지궤하삼수적변식。실험결과표명해방법시유효、가행적,삼개궤하삼수변식적중복오차도재2μm이내。
Aiming at the exploited non-contact five-coordinate measuring machine with laser probe,its overall structure and working principles were introduced.The measurement mathematical model of such system was established by virtue of multi-body kinematics theory and homogeneous transformation.For the unknown geometrical parameters in this model,the identification approaches were proposed based on testing the physical basis.The experimental results show that the method is valid and feasible.The identification repeated errors of three system geometrical parameters are all within 2μm.