Theoretical Model and Dynamic Performance of V-Shaped Electrothermal Actuator
To study the dynamic performance of the V-shaped electrothermal actuator, electrothermal and thermoelastic coupling models are established based on the heat transfer theory and the forced vibration equation, respectively. A one dimensional multi-physical field coupling theoretical model of the V-sha...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Shanghai Jiao Tong University
2021-10-01
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| Series: | Shanghai Jiaotong Daxue xuebao |
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| Online Access: | http://xuebao.sjtu.edu.cn/article/2021/1006-2467/1006-2467-55-10-1263.shtml |
| _version_ | 1818696023846944768 |
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| author | CHEN Hao, WANG Xinjie, WANG Jiong, XI Zhanwen, NIE Weirong |
| author_facet | CHEN Hao, WANG Xinjie, WANG Jiong, XI Zhanwen, NIE Weirong |
| author_sort | CHEN Hao, WANG Xinjie, WANG Jiong, XI Zhanwen, NIE Weirong |
| collection | DOAJ |
| description | To study the dynamic performance of the V-shaped electrothermal actuator, electrothermal and thermoelastic coupling models are established based on the heat transfer theory and the forced vibration equation, respectively. A one dimensional multi-physical field coupling theoretical model of the V-shaped electrothermal actuator is proposed. The electrothermal coupling model is solved by the method in which the sine transformation and the implicit difference are combined together. Then, a convergence test is performed. The number of discrete points in the sine transformation has less influence on the temperature stability. The transient and static temperature distributions of the model coincide with that of the finite element method (FEM) at different voltages. The static displacements gained by the experiment and the edge detection algorithm also match well with that gained by the thermoelastic coupling model at different voltages. Based on the proposed model, the dynamic performances of the actuator at step and sine voltages are analyzed. The research results indicate that changes of temperature and displacement in the middle of the V-shaped electrothermal actuator are larger with the amplitude of sine voltage increasing. When the loading time of sine voltage is larger than 5 periods (50 ms), the average temperature and displacement in the middle of the actuator are equal to those with equivalent direct voltage. When applied to a periodic voltage, the motion of the actuator is also gradually cyclical and has the same time period with the voltage cycle. |
| first_indexed | 2024-12-17T13:54:47Z |
| format | Article |
| id | doaj.art-5608eb5e79434b06b62cd62193ac4b6d |
| institution | Directory Open Access Journal |
| issn | 1006-2467 |
| language | zho |
| last_indexed | 2024-12-17T13:54:47Z |
| publishDate | 2021-10-01 |
| publisher | Editorial Office of Journal of Shanghai Jiao Tong University |
| record_format | Article |
| series | Shanghai Jiaotong Daxue xuebao |
| spelling | doaj.art-5608eb5e79434b06b62cd62193ac4b6d2022-12-21T21:45:57ZzhoEditorial Office of Journal of Shanghai Jiao Tong UniversityShanghai Jiaotong Daxue xuebao1006-24672021-10-0155101263127110.16183/j.cnki.jsjtu.2020.216Theoretical Model and Dynamic Performance of V-Shaped Electrothermal ActuatorCHEN Hao, WANG Xinjie, WANG Jiong, XI Zhanwen, NIE Weirong0School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaTo study the dynamic performance of the V-shaped electrothermal actuator, electrothermal and thermoelastic coupling models are established based on the heat transfer theory and the forced vibration equation, respectively. A one dimensional multi-physical field coupling theoretical model of the V-shaped electrothermal actuator is proposed. The electrothermal coupling model is solved by the method in which the sine transformation and the implicit difference are combined together. Then, a convergence test is performed. The number of discrete points in the sine transformation has less influence on the temperature stability. The transient and static temperature distributions of the model coincide with that of the finite element method (FEM) at different voltages. The static displacements gained by the experiment and the edge detection algorithm also match well with that gained by the thermoelastic coupling model at different voltages. Based on the proposed model, the dynamic performances of the actuator at step and sine voltages are analyzed. The research results indicate that changes of temperature and displacement in the middle of the V-shaped electrothermal actuator are larger with the amplitude of sine voltage increasing. When the loading time of sine voltage is larger than 5 periods (50 ms), the average temperature and displacement in the middle of the actuator are equal to those with equivalent direct voltage. When applied to a periodic voltage, the motion of the actuator is also gradually cyclical and has the same time period with the voltage cycle.http://xuebao.sjtu.edu.cn/article/2021/1006-2467/1006-2467-55-10-1263.shtmlelectrothermal actuatorcouplingsine transformationforced vibrationedge detection |
| spellingShingle | CHEN Hao, WANG Xinjie, WANG Jiong, XI Zhanwen, NIE Weirong Theoretical Model and Dynamic Performance of V-Shaped Electrothermal Actuator Shanghai Jiaotong Daxue xuebao electrothermal actuator coupling sine transformation forced vibration edge detection |
| title | Theoretical Model and Dynamic Performance of V-Shaped Electrothermal Actuator |
| title_full | Theoretical Model and Dynamic Performance of V-Shaped Electrothermal Actuator |
| title_fullStr | Theoretical Model and Dynamic Performance of V-Shaped Electrothermal Actuator |
| title_full_unstemmed | Theoretical Model and Dynamic Performance of V-Shaped Electrothermal Actuator |
| title_short | Theoretical Model and Dynamic Performance of V-Shaped Electrothermal Actuator |
| title_sort | theoretical model and dynamic performance of v shaped electrothermal actuator |
| topic | electrothermal actuator coupling sine transformation forced vibration edge detection |
| url | http://xuebao.sjtu.edu.cn/article/2021/1006-2467/1006-2467-55-10-1263.shtml |
| work_keys_str_mv | AT chenhaowangxinjiewangjiongxizhanwennieweirong theoreticalmodelanddynamicperformanceofvshapedelectrothermalactuator |