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您的检索式：关键字=contour error
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| 1 | Interpolation-based contour error estimation and componentbased contouring control for five-axis CNC machine tools显示文摘High accuracy contour error estimation and direct contour error control are two major approaches to reduce the contour error.However, two key factors make them complex for five-axis machine tools: the nonlinear kinematics and the coupling between the tool position and orientation. In this study, by finding the reference point nearest to the current actual position, and interpolating the point with two neighboring reference points and using the distance ratio, a new contour error estimation method for five-axis machine tools is proposed, which guarantees high accuracy while depending on only the reference points. By adding a weighted contour error on the tracking error in the workpiece coordinate system, and specifying a desired second-order error dynamics based on the error variable, an effective contouring control method is proposed, which can alleviate the problem: when the contour error components are introduced into the controller, the contour errors increase instead in some regions of the tracking trajectory. A series of experiments are performed on a tilting-rotary-table(TRT) type five-axis machine tool. The results reveal that the proposed estimation method has high accuracy, and compared with the case without contour error control, the proposed control approach can reduce the contour error along the whole trajectory. | LI XiangFei ZHAO Huan ZHAO Xin DING Han | 2018 | Science China(Technological Sciences)2018，61，11： | 2 |
| 2 | THEOREM REGARDING EXISTENCE OF THE BASIC EQUATIONS OF THREE-PROBE ERROR SEPARATION TECHNIQUE AND ITS APPLICATION显示文摘Since 1970s, various scholars at home and abroad have used the three-probe error separation technique to separate high precision roundness error and axis rotation error from measured signals. FT, matrix approach and functional analysis have generally been used. | 朱训生 潘德豫 薛秉源 贝季瑶 | 1987 | Chinese Science Bulletin1987，32，23： | 0 |
| 3 | The Design and Its Application of Cross-Coupled Controller in X-Y Table显示文摘In conventional cross-coupled controller design,the method usually ignored the inherent characteristic of time-vary- ing parameters and model uncertainties in system.In this paper,a cross-coupled controller(CCC)using an H~∞control scheme has been proposed to reduce the contouring error for an X-Y table.Furthermore,the proposed CCC design,which is a typical Multi- Input Multi-Output(MIMO)system with linear time varying(LTV)characteristics,has been verified as being internally stable. The simulations are carried on Matlab simulink to verify the proposed method,and the results showed that the proposed method can reduce the contouring error significantly compared with the conventional one. | XI Lei~1 WANG Xin~2 ZHANG Yi~1 (1.Division of Control and Mechatronics Engineering,Harbin Institute of Technology Shenzhen Graduate,Shenzhen 518055,China, 2.Division of Mechanical Engineering & Automation,Harbin Institute of Technology Shenzhen Graduate,Shenzhen 518055,China) | 2006 | 武汉理工大学学报2006，28，S3： | 0 |
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