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《Modular Machine Tool & Automatic Manufacturing Technique》 2011-04
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The Five Phased S-curve Acceleration-deceleration Control Method Based on NURBS Curve Interpolation

ZHOU Sheng-de1,2,LIANG Hong-bin1,QIAO Yu1(1.Coll.of Mech.Eng.,University of Sci.and Tech.Liaoning,Anshan Liaoning 114051,China;2.Qier Machine Tool Group Co.,Ltd,Heilongjiang,Qiqihaer Heilongjiang 161005,China)  
A new ACCeleration-DECeleration method(ACC-DEC) was put forward,which aimed at the shortages of S-curve ACC-DEC.The proposed approach was designed to satisfy the requirements of non-uniform rational B-spline(NURBS) interpolation with high-speed and high-accuracy.Based on the impacts which used conventional linear ACC-DEC,the complex algorithm of the seven phased S-curve,the five phased S-curve was adopted,taking chord error and maximal centripetal acceleration into consideration,solving rationally difficulty in the predetermination deceleration point.The simulation results showed that the method can make sure the acceleration was continuous,the speed changed smoothly,the flexibility was improved,the algorithm was easy to implement.
【Fund】: 国家自然科学基金资助(50675002)项目;; 辽宁省教育厅资助(20060426)项目
【CateGory Index】: TG659
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