Model Updating of Spindle Systems Based on the Identification of Joint Dynamics
In order to simulate the cutting performance of a spindle mounted in the machine tool, the finite element (FE) model of spindles is required to be coupled with machine tool. However, the unknown joint dynamics (e.g., bolts) between the spindle and machine tool column limit the accuracy of the model....
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/894307 |
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| _version_ | 1850165432132042752 |
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| author | Hongrui Cao Songtao Xi Wei Cheng |
| author_facet | Hongrui Cao Songtao Xi Wei Cheng |
| author_sort | Hongrui Cao |
| collection | DOAJ |
| description | In order to simulate the cutting performance of a spindle mounted in the machine tool, the finite element (FE) model of spindles is required to be coupled with machine tool. However, the unknown joint dynamics (e.g., bolts) between the spindle and machine tool column limit the accuracy of the model. In this paper, an FE model updating method is proposed based on the identification of joint dynamics in both translational and rotational degrees-of-freedom (DOF). The receptance coupling (RC) technique is enhanced to estimate frequency response functions (FRFs) corresponding to rotational DOFs. The joint stiffness is identified through the iteration process by minimizing the difference between the simulated FRF and the measured FRF of the assembly. The proposed method is verified with a machine-tool spindle system. The good agreement between simulation and experiment shows the effectiveness of the method. |
| format | Article |
| id | doaj-art-ea2f69429a4f4a62b8844fef98d456e5 |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-ea2f69429a4f4a62b8844fef98d456e52025-08-20T02:21:46ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/894307894307Model Updating of Spindle Systems Based on the Identification of Joint DynamicsHongrui Cao0Songtao Xi1Wei Cheng2State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaState Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaIn order to simulate the cutting performance of a spindle mounted in the machine tool, the finite element (FE) model of spindles is required to be coupled with machine tool. However, the unknown joint dynamics (e.g., bolts) between the spindle and machine tool column limit the accuracy of the model. In this paper, an FE model updating method is proposed based on the identification of joint dynamics in both translational and rotational degrees-of-freedom (DOF). The receptance coupling (RC) technique is enhanced to estimate frequency response functions (FRFs) corresponding to rotational DOFs. The joint stiffness is identified through the iteration process by minimizing the difference between the simulated FRF and the measured FRF of the assembly. The proposed method is verified with a machine-tool spindle system. The good agreement between simulation and experiment shows the effectiveness of the method.http://dx.doi.org/10.1155/2015/894307 |
| spellingShingle | Hongrui Cao Songtao Xi Wei Cheng Model Updating of Spindle Systems Based on the Identification of Joint Dynamics Shock and Vibration |
| title | Model Updating of Spindle Systems Based on the Identification of Joint Dynamics |
| title_full | Model Updating of Spindle Systems Based on the Identification of Joint Dynamics |
| title_fullStr | Model Updating of Spindle Systems Based on the Identification of Joint Dynamics |
| title_full_unstemmed | Model Updating of Spindle Systems Based on the Identification of Joint Dynamics |
| title_short | Model Updating of Spindle Systems Based on the Identification of Joint Dynamics |
| title_sort | model updating of spindle systems based on the identification of joint dynamics |
| url | http://dx.doi.org/10.1155/2015/894307 |
| work_keys_str_mv | AT hongruicao modelupdatingofspindlesystemsbasedontheidentificationofjointdynamics AT songtaoxi modelupdatingofspindlesystemsbasedontheidentificationofjointdynamics AT weicheng modelupdatingofspindlesystemsbasedontheidentificationofjointdynamics |