Finite element modal analysis of a vehicle-borne lidar cabin

Yafeng Chen; Qiuwu Liu; Jie Wang; Shunxing Hu; Jian Huang

doi:10.1117/12.2315436

20 February 2018 Finite element modal analysis of a vehicle-borne lidar cabin

Yafeng Chen, Qiuwu Liu, Jie Wang, Shunxing Hu, Jian Huang

Proceedings Volume 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application; 106972A (2018) https://doi.org/10.1117/12.2315436
Event: Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 2017, Nanjing, China

Abstract

Using SolidWorks software, the finite element modal analysis of a vehicle-borne pollution monitoring lidar cabin is carried out. The lidar cabin for the integrated lidar can ensure that the lidar system has good maneuverability and can effectively monitor the emission of air pollution. Since lidar is an integrated system of optics, mechanism, electricity and calculation, the performance of the cabin is directly related to the safety of the equipment and the lidar to work properly. Firstly, the cubic structure is modeled to simulate the cubic structure. Then, the model of the cabin model is analyzed by using the simulation plug-in, and the first 10 modes and natural frequencies are analyzed and recorded. The calculation results show that the cabin is dominated by bending vibration, and the amplitude area is concentrated in the opening of some windows and doors on each board. Therefore, we should increase the number of reinforcement bars or the strength of the skeleton in the vicinity of the door and window. At the same time, to avoid the resonance and ensure the precision of the optical elements and the electrical components and avoid structural damage of the cabin, the incentive frequency should be keep away from the natural frequency of the cabin. The vehicle-borne lidar system has been put into operation, and the analysis results have direct meaning to the transport of the cabin and the normal work.

Citation Download Citation

Yafeng Chen, Qiuwu Liu, Jie Wang, Shunxing Hu, and Jian Huang "Finite element modal analysis of a vehicle-borne lidar cabin", Proc. SPIE 10697, Fourth Seminar on Novel Optoelectronic Detection Technology and Application, 106972A (20 February 2018); https://doi.org/10.1117/12.2315436

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KEYWORDS

LIDAR

Modal analysis

Atmospheric optics

Atmospheric particles

Finite element methods

Atmospheric laser remote sensing

Composites

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