Wang Zichen, Wang Donghe, Zhu Wei. Test and analysis of vibration characters of damper in EO platform of UAV[J]. Infrared and Laser Engineering, 2024, 53(1): 20230432. doi: 10.3788/IRLA20230432
Citation:
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Wang Zichen, Wang Donghe, Zhu Wei. Test and analysis of vibration characters of damper in EO platform of UAV[J]. Infrared and Laser Engineering, 2024, 53(1): 20230432. doi: 10.3788/IRLA20230432
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Test and analysis of vibration characters of damper in EO platform of UAV
- 1.
Shanghai Institute of Quality Inspection and Technical Research, Shanghai 200031, China
- 2.
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
Funds:
National Natural Science Foundation of China (32060308)
- Received Date: 2023-05-20
- Rev Recd Date:
2023-06-25
- Publish Date:
2024-01-25
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Abstract
Objective Absorber is a very commonly used component in UAV OE platform, because it can effectively absorb the vibration caused by the UAV, thereby enabling the photoelectric platform to obtain more stable and clear image or video. In the recent years, many scholars focus their attention on many kinds of damper in order to further improve the imaging quality of the OE platform. Non-angular displacement damper is designed for optimizing the performance of platform payload, but its practicality is limited by large volume and heavy weight. So traditional damping absorber is still the most widely used damper in OE platform at present. A lot of research have been conducted about the characters of damping absorber, but quantitative analysis to address the impact of vibration on optoelectronic platforms and how to optimize the installation layout of OE platform with damping absorber has not been carried out. Methods According to the characters of airborne OE payload, this paper analyzes and tests the angular characteristics of damping absorber that is related to the performance of airborne payload. First, the self-character of damper of EO payload is introduced. Second, the overall performance model of EO payload are established. Meanwhile, the modeling of motion characteristics is established and the factors that may affect the ability of airborne payload are analyzed during the installation layout of damping absorber. Many factors, such as stiffness, damping coefficient, installment-center-distance and the mass of payload, are promoted which determine the results of angular and linear displacement. Results and Discussions The results of simulation analysis show that the displacement of damper mainly occurs in the vertical direction instead of horizontal direction, and the displacement in horizontal direction is only 2% in the vertical direction within the effective stroke of damper when the distance of rotation center R is set as 200 mm, 250 mm and 300 mm. The portable test system is mounted using a vibration table, an UAV OE platform with four damping absorbers and an auto-collimator. All the dampers, with the same stiffness and damping coefficient, are fixed between vibration table and UAV OE platform, and auto-collimator with target is used for testing the impact of vibration on payload imaging quality. Four images are captured by OE payload when the installment-center-distance is set as 350 mm, 300 mm, 200 mm and 100 mm respectively, and the vibration table is under 5 Hz low-frequency disturbances. It is not difficult to find that with the increase of installment-center-distance, the image quality decreases significantly. So, we should increase installation spacing of diagonal dampers as much as possible in application. Conclusions According to the characters of OE payload, we researched the characteristics, motion modeling, and testing applications of UAV OE platform and its related damping absorber deeply. On the basis of introducing the working principles of damping absorber and OE platform, a motion characteristic model of the platform with damping absorber is established. At the same time, not only the theoretical model is simulated, but also the test results are conducted in laboratory. All the results indicate that the model can reflect the impact of damping absorber on the overall performance of UAV optoelectronic platform basically, and the results of our research in this paper are very helpful in optimizing the design, installation, and practical engineering applications of UAV platform.
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References
[1]
|
Zuo L, Slotine J E, Nayfeh S A. Model researching adaptive control for vibration isolation [J]. IEEE Transaction on Control System Technology, 2005, 13(14): 611-617. |
[2]
|
Alessandro Stabile, Guglielmo S. Aglietti, Guy Richardson. Electromagnetic damper design using a multi-physics approach[C]//Proceeding of SPIE, 2015, 9431: 332-341. |
[3]
|
Qi Yuan, Wang Huilin, Huang Weidong, et al. Vibration reduction technology of airborne photoelectric stabilization sighting platform [J]. Journal of Applied Optics, 2022, 43(4): 611-617. (in Chinese) |
[4]
|
Ji Ting, Ji Ming, Xu Qingqing. Modeling and dynamic characteristic analysis of airborne photoelectric stabilization platform [J]. Laser & Infrared, 2021, 51(2): 206-211. (in Chinese) |
[5]
|
Gharagoz M M, Noureldin M, Kim J. Machine learning-based design of a seismic retrofit frame with spring-rotational friction dampers [J]. Engineering Structures, 2023,(292): 161-176. (in Chinese) |
[6]
|
Wang Dan, Song Liyao, Chen Bai, et al. Nonlinear dynamic of a supercritical tail rotor drive shaft equipped with a hybrid damper [J]. Journal of Vibration Engineering, 2023, 36(3): 593-605. (in Chinese) |
[7]
|
Zou Guangping, Liu Tianzeng, Wu Songyang, et al. Dynamic hysteresis model of metal-net rubber combination damper based on power series and ellipse equation [J]. Journal of Mechanical Engineering, 2023, 36(3): 593-605. (in Chinese) |
[8]
|
Cheng Yongqiang, Hu Xiong, Yan Shaoai, et al. Shock absorption design of the receiving system for the deployment of sodium lidar [J]. Infrared and Laser Engineering, 2016, 45(S1): 51-56. (in Chinese) |
[9]
|
Ren Zhiying, Yao Jiecheng, Huang Wei, et al. Performance of the composite damping damper structure compose of metal rubber and silicone rubber [J]. Journal of Vibration and Shock, 2022, 41(24): 234-240. (in Chinese) |
[10]
|
Mansour A, Liu Genshuo, Fan Chengliang, et al. Energy regenerative shock absorber based on a slotted link conversion mechanism for application in the electrical bus to power the low wattages devices [J]. Applied Energy, 2023(347): 1861-1869. |
[11]
|
Yu Yang, Zhang Honggang, Gao Junke, et al. Friction observation compensation technology based on angular position information of photoelectric platform [J]. Infrared and Laser Engineering, 2022, 51(5): 20210557. (in Chinese) |
[12]
|
王家琪. 光电仪器总体设计[M]. 长春: 中国科学院长春光学精密机械与物理研究所, 2003. |
[13]
|
Du Yanlu, Ding Yalin, Xu Yongseng, et al. Analysis of coupled vibration in isolation system for airborne optoelectronic pod [J]. China Mechanical Engineering, 2015, 26(21): 2880-2884. (in Chinese) |
[14]
|
Zhao Kui, Chen Junjie, Jin Zhaosheng. Characteristics of simulation and test analysis for new type of metal rubber absorber [J]. Aero Engine R&D System, 2022(S1): 73-76. (in Chinese) |
[15]
|
Miller J L, Way S, Ellison B. Design challenges regarding high definition electro-optic or infrared stabilized imaging systems [J]. Optical Engineering, 2013, 52(6): 061310. doi: 10.1117/1.OE.52.6.061310 |
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