Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center
To evaluate the dynamic characteristics at all positions of the main spindle of a machine tool, an experimental point was selected using a full factorial design, and a vibration test was conducted. Based on the measurement position, the resonant frequency was distributed from approximately 236 to 24...
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| Format: | Article |
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MDPI AG
2022-10-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/20/7158 |
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| author | Ji-Wook Kim Dong-Yul Kim Hong-In Won Yoo-Jeong Noh Dae-Cheol Ko Jin-Seok Jang |
| author_facet | Ji-Wook Kim Dong-Yul Kim Hong-In Won Yoo-Jeong Noh Dae-Cheol Ko Jin-Seok Jang |
| author_sort | Ji-Wook Kim |
| collection | DOAJ |
| description | To evaluate the dynamic characteristics at all positions of the main spindle of a machine tool, an experimental point was selected using a full factorial design, and a vibration test was conducted. Based on the measurement position, the resonant frequency was distributed from approximately 236 to 242 Hz. The approximation model was evaluated based on its resonant frequencies and dynamic stiffness using regression and interpolation methods. The accuracy of the resonant frequency demonstrated by the kriging method was approximately 89%, whereas the highest accuracy of the dynamic stiffness demonstrated by the polynomial regression method was 81%. To further verify the approximation model, its dynamic characteristics were measured and verified at additional experimental points. The maximum errors yielded by the model, in terms of the resonant frequency and dynamic stiffness, were 1.6% and 7.1%, respectively. |
| first_indexed | 2024-03-09T19:54:05Z |
| format | Article |
| id | doaj.art-6933b3d4163f41429bef322a40d91bac |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T19:54:05Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-6933b3d4163f41429bef322a40d91bac2023-11-24T01:03:11ZengMDPI AGMaterials1996-19442022-10-011520715810.3390/ma15207158Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining CenterJi-Wook Kim0Dong-Yul Kim1Hong-In Won2Yoo-Jeong Noh3Dae-Cheol Ko4Jin-Seok Jang5Dae-Gyeong Division, Korea Institute of Industrial Technology, Daegu 42994, KoreaGyeongbuk Research Institute of Vehicle Embedded Technology, Yeongcheon-si 38822, KoreaDae-Gyeong Division, Korea Institute of Industrial Technology, Daegu 42994, KoreaDepartment of Mechanical Engineering, Pusan National University, Pusan 46241, KoreaDepartment of Nanomechatronics Engineering, Pusan National University, Pusan 46241, KoreaDae-Gyeong Division, Korea Institute of Industrial Technology, Daegu 42994, KoreaTo evaluate the dynamic characteristics at all positions of the main spindle of a machine tool, an experimental point was selected using a full factorial design, and a vibration test was conducted. Based on the measurement position, the resonant frequency was distributed from approximately 236 to 242 Hz. The approximation model was evaluated based on its resonant frequencies and dynamic stiffness using regression and interpolation methods. The accuracy of the resonant frequency demonstrated by the kriging method was approximately 89%, whereas the highest accuracy of the dynamic stiffness demonstrated by the polynomial regression method was 81%. To further verify the approximation model, its dynamic characteristics were measured and verified at additional experimental points. The maximum errors yielded by the model, in terms of the resonant frequency and dynamic stiffness, were 1.6% and 7.1%, respectively.https://www.mdpi.com/1996-1944/15/20/7158machining centervibration testdynamic stiffnessapproximate modeldesign of experiments |
| spellingShingle | Ji-Wook Kim Dong-Yul Kim Hong-In Won Yoo-Jeong Noh Dae-Cheol Ko Jin-Seok Jang Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center Materials machining center vibration test dynamic stiffness approximate model design of experiments |
| title | Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center |
| title_full | Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center |
| title_fullStr | Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center |
| title_full_unstemmed | Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center |
| title_short | Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center |
| title_sort | approximation model development and dynamic characteristic analysis based on spindle position of machining center |
| topic | machining center vibration test dynamic stiffness approximate model design of experiments |
| url | https://www.mdpi.com/1996-1944/15/20/7158 |
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