| 3-RSR型并联车载天线机构动力学优化与仿真 |
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| 引用本文： | 杨彦东,周治宇,邓云蛟,段艳宾,窦玉超,曾达幸,侯雨雷.3-RSR型并联车载天线机构动力学优化与仿真[J].中国机械工程,2019,30(10):1219. |
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| 作者姓名： | 杨彦东 周治宇 邓云蛟 段艳宾 窦玉超 曾达幸 侯雨雷 |
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| 作者单位： | 1.燕山大学机械工程学院，秦皇岛，066004
2.中国电子科技集团公司第五十四研究所，石家庄，050081
3.河北省重型智能制造装备技术创新中心，秦皇岛，066004 |
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| 基金项目： | 国家自然科学基金资助项目(51775473)；
河北省自然科学基金资助项目(E2015203135, E2018203140) |
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| 摘 要： | 动态特性是高速高精密天线功能实现的关键。采用3-RSR(R为转动副，S为球面副)型并联机构作为车载天线构型，基于拉格朗日方程建立基体运动下天线机构动力学模型。以固有频率为目标，利用遗传算法对3-RSR天线机构参数进行优化，性能对比验证了优化结果的有效性。考虑风雪载荷及车体随机激励工况，建立车载天线机构仿真模型，分析得到相应工况下驱动力矩变化曲线。研究工作对车载天线机构动力学设计及样机研制具有参考意义。
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| 关 键 词： | 车载天线 并联机构 动力学 机构参数优化 |
Dynamics Optimization and Simulation of 3-RSR Parallel Vehicle-borne Antenna Mechanisms |
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| YANG Yandong,ZHOU Zhiyu,DENG Yunjiao,DUAN Yanbin,DOU Yuchao,ZENG Daxing,HOU Yulei.Dynamics Optimization and Simulation of 3-RSR Parallel Vehicle-borne Antenna Mechanisms[J].China Mechanical Engineering,2019,30(10):1219. |
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| Authors: | YANG Yandong ZHOU Zhiyu DENG Yunjiao DUAN Yanbin DOU Yuchao ZENG Daxing HOU Yulei |
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| Affiliation: | 1.School of Mechanical Engineering, Yanshan University, Qinhuangdao, Hebei,066004
2.The 54th Researth Institute of CETC, Shijiazhuang, 050081
3.Heavy dult Intelligent Manufacturing Equipment Innovation Center of Hebei Province, Qinhuangdao, Hebei,066004 |
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| Abstract: | Dynamic characteristics are the key to realize the high-speed and high-precision antenna functions. Using 3-RSR (R as a rotating pair, S as a spherical pair) type parallel mechanism as the configuration of the vehicle antenna, the dynamics model of the mechanisms was established by using Lagrange equation. With the natural frequency as the goal, the parameters of 3-RSR antenna were optimized by genetic algorithm, and the performance comparisons verified the effectiveness of the optimization results. Considering the wind-snow loads and the random excitation conditions of the vehicle bodies, a simulation model of the vehicle-mounted antenna mechanisms was established, the change curves of driving torques were obtained under the corresponding working conditions. The research work has a reference meaning to the dynamics design of vehicle antenna mechanisms and prototype development. |
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| Keywords: | vehicle-borne antenna parallel mechanism dynamics mechanism parameter optimization |
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