Qinglong Wu, Zhan Yao, Tanhui Wu, H. Fang, Yangqing Hou
{"title":"基于力锥法的大型射电望远镜后架优化","authors":"Qinglong Wu, Zhan Yao, Tanhui Wu, H. Fang, Yangqing Hou","doi":"10.1051/wujns/2022275424","DOIUrl":null,"url":null,"abstract":"A new research perspective is proposed to optimize the topology of truss structure by force cone method, which involves force cone drawing rules and growth rules. Through the comparison with the mature variable density topology optimization method, the effectiveness of force cone method is verified. This kind of new method is simple and easy to understand (no need to master complex structural optimization design theory). Besides, it is time-saving in finite element calculations, and can obtain an optimized truss layout easily. By drawing the force cone, its application on a large radio telescope's back frame structure shows that, compared with the existing one in terms of structural stiffness, Root Mean Square (RMS) precision, and beam stress distribution, the optimized back frame using the force cone method has higher stiffness, better RMS, more uniform stress, and lighter weight.","PeriodicalId":23976,"journal":{"name":"Wuhan University Journal of Natural Sciences","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Back Frame Optimization of a Large Radio Telescope Based on Force Cone Method\",\"authors\":\"Qinglong Wu, Zhan Yao, Tanhui Wu, H. Fang, Yangqing Hou\",\"doi\":\"10.1051/wujns/2022275424\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new research perspective is proposed to optimize the topology of truss structure by force cone method, which involves force cone drawing rules and growth rules. Through the comparison with the mature variable density topology optimization method, the effectiveness of force cone method is verified. This kind of new method is simple and easy to understand (no need to master complex structural optimization design theory). Besides, it is time-saving in finite element calculations, and can obtain an optimized truss layout easily. By drawing the force cone, its application on a large radio telescope's back frame structure shows that, compared with the existing one in terms of structural stiffness, Root Mean Square (RMS) precision, and beam stress distribution, the optimized back frame using the force cone method has higher stiffness, better RMS, more uniform stress, and lighter weight.\",\"PeriodicalId\":23976,\"journal\":{\"name\":\"Wuhan University Journal of Natural Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Wuhan University Journal of Natural Sciences\",\"FirstCategoryId\":\"1093\",\"ListUrlMain\":\"https://doi.org/10.1051/wujns/2022275424\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Multidisciplinary\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wuhan University Journal of Natural Sciences","FirstCategoryId":"1093","ListUrlMain":"https://doi.org/10.1051/wujns/2022275424","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Multidisciplinary","Score":null,"Total":0}
Back Frame Optimization of a Large Radio Telescope Based on Force Cone Method
A new research perspective is proposed to optimize the topology of truss structure by force cone method, which involves force cone drawing rules and growth rules. Through the comparison with the mature variable density topology optimization method, the effectiveness of force cone method is verified. This kind of new method is simple and easy to understand (no need to master complex structural optimization design theory). Besides, it is time-saving in finite element calculations, and can obtain an optimized truss layout easily. By drawing the force cone, its application on a large radio telescope's back frame structure shows that, compared with the existing one in terms of structural stiffness, Root Mean Square (RMS) precision, and beam stress distribution, the optimized back frame using the force cone method has higher stiffness, better RMS, more uniform stress, and lighter weight.
期刊介绍:
Wuhan University Journal of Natural Sciences aims to promote rapid communication and exchange between the World and Wuhan University, as well as other Chinese universities and academic institutions. It mainly reflects the latest advances being made in many disciplines of scientific research in Chinese universities and academic institutions. The journal also publishes papers presented at conferences in China and abroad. The multi-disciplinary nature of Wuhan University Journal of Natural Sciences is apparent in the wide range of articles from leading Chinese scholars. This journal also aims to introduce Chinese academic achievements to the world community, by demonstrating the significance of Chinese scientific investigations.