机电工程技术2025，Vol.54Issue(18)：53-58,6.DOI:10.3969/j.issn.1009-9492.2025.18.010
激光雷达主镜筒及其固定结构的力学分析
Mechanical Analysis of Laser Radar Primary Lens Barrel and Its Fixed Structure
汤咏 1张凯 1盛训超 1宋耀东2
作者信息
- 1. 合肥中科环境监测技术国家工程实验室有限公司,合肥 230088
- 2. 合肥中科环境监测技术国家工程实验室有限公司,合肥 230088||中国科学院合肥物质研究院,合肥 230031
- 折叠
摘要
Abstract
Because the structural stability of the main lens barrel of the laser mine directly affects the results of radar signal analysis and processing.For this purpose,the total displacement under force is studied based on LiDAR.Taking the simplified radar primary lens barrel and its fixed structure as the object,considering the static load and random vibration conditions under the actual working conditions of the object,the finite element analysis method is used to establish the mechanical analysis method.Static and dynamic simulations are carried out.The mechanical displacement of the primary lens barrel at the limit position of the structure is analyzed by the static method,and the design scheme is improved accordingly;Based on the results of the static analysis,further analysis is carried out from the perspective of dynamics,and the structural mode and mode shape simulation are completed.The time-domain load spectrum in the actual vehicle travel is collected,the power spectral density in the frequency domain is calculated,and the random vibration analysis module is introduced to calculate the total displacement of the main lens barrel under the force of 3σ probability.The simulation results show that the structure design after static optimization is reasonable,and the static load and random vibration displacement of the main lens barrel do not exceed 0.01 mm,which can work safely under the random vibration industrial control of similar road conditions.关键词
激光雷达/静力学分析/结构模态分析/功率谱密度/随机振动Key words
laser radar/static structural/structure model analysis/power spectrum density/random vibration分类
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汤咏,张凯,盛训超,宋耀东..激光雷达主镜筒及其固定结构的力学分析[J].机电工程技术,2025,54(18):53-58,6.
