| 朱红发,赵明利,程热.基于PSD法的船载雷达随机振动响应分析[J].装备环境工程,2020,17(10):118-123. ZHU Hong-fa,ZHAO Ming-li,CHENG Re.Random Vibration Response of Shipborne Radar Based on PSD Method[J].Equipment Environmental Engineering,2020,17(10):118-123. |
| 基于PSD法的船载雷达随机振动响应分析 |
| Random Vibration Response of Shipborne Radar Based on PSD Method |
| 投稿时间：2020-02-25 修订日期：2020-03-19 |
| DOI：10.7643/issn.1672-9242.2020.10.018 |
| 中文关键词: 船载雷达 模态 PSD 随机振动 |
| 英文关键词:shipborne radar modal PSD random vibration |
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| 中文摘要: |
| 目的 优化以经验为主的船载雷达结构设计流程，缩短设计周期，提高设计的准确性。方法 提出基于模态分析和PSD法的新的设计流程，利用ANSYS软件对雷达天线和转台结构进行系统的随机振动分析，得到其模态、应力分布、位移云图及响应谱曲线，验证设计的准确性、合理性。结果 得到雷达系统在1σ下的最大应力值和最大变形量分别为14.847 MPa和0.367 mm。结论 新的设计流程可以得到可靠性更高的产品，能有效缩短产品的设计周期，具有重要的借鉴意义。 |
| 英文摘要: |
| The work aims to optimize the traditional experience-based shipborne radar structure design process, shorten the design cycle and improve the design accuracy.A new design process based on modal analysis and PSD method was proposed. Radar antennas and turntable structures were analyzed by ANSYS software for systematic random vibration analysis. The modal cloud map, stress distribution cloud map, displacement cloud map and response spectrum curve were obtained to verify the design accuracy and reasonableness. The maximum stress value and maximum deformation of the radar system at 1σ were 14.847Mpa and 0.367mm, respectively. The new design process can get more reliable products. It can effectively shorten the product design cycle and has important reference significance. |
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