Mohamed Gharib , Mansour Karkoub , Mohammad Ghamary
{"title":"带摩擦的线性颗粒链冲击阻尼器的数值研究","authors":"Mohamed Gharib , Mansour Karkoub , Mohammad Ghamary","doi":"10.1016/j.csmssp.2016.03.001","DOIUrl":null,"url":null,"abstract":"<div><p>Impact dampers were first introduced in 1934 and the research and development on improving their performance and configuration is still ongoing to date. In this paper, the recently developed Linear Particle Chain (LPC) impact damper is experimentally and numerically studied. The damper was attached to a single-degree-of-freedom structure represented by a spring damper system and released from an initial position. A SOLIDWORKS model for the damper has been developed and numerically simulated using the finite element approach. The Coulomb friction model of the colliding masses is added to the overall structure. The response of the system was analyzed and compared to the experimental results. The simulation model showed a faster decay when the number of balls in the LPC impact damper was increased and when different mass ratios were used which is in agreement with the experimental results.</p></div>","PeriodicalId":100220,"journal":{"name":"Case Studies in Mechanical Systems and Signal Processing","volume":"3 ","pages":"Pages 34-40"},"PeriodicalIF":0.0000,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.csmssp.2016.03.001","citationCount":"5","resultStr":"{\"title\":\"Numerical investigation of Linear Particle Chain impact dampers with friction\",\"authors\":\"Mohamed Gharib , Mansour Karkoub , Mohammad Ghamary\",\"doi\":\"10.1016/j.csmssp.2016.03.001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Impact dampers were first introduced in 1934 and the research and development on improving their performance and configuration is still ongoing to date. In this paper, the recently developed Linear Particle Chain (LPC) impact damper is experimentally and numerically studied. The damper was attached to a single-degree-of-freedom structure represented by a spring damper system and released from an initial position. A SOLIDWORKS model for the damper has been developed and numerically simulated using the finite element approach. The Coulomb friction model of the colliding masses is added to the overall structure. The response of the system was analyzed and compared to the experimental results. The simulation model showed a faster decay when the number of balls in the LPC impact damper was increased and when different mass ratios were used which is in agreement with the experimental results.</p></div>\",\"PeriodicalId\":100220,\"journal\":{\"name\":\"Case Studies in Mechanical Systems and Signal Processing\",\"volume\":\"3 \",\"pages\":\"Pages 34-40\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.csmssp.2016.03.001\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Case Studies in Mechanical Systems and Signal Processing\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2351988616300021\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Case Studies in Mechanical Systems and Signal Processing","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2351988616300021","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Numerical investigation of Linear Particle Chain impact dampers with friction
Impact dampers were first introduced in 1934 and the research and development on improving their performance and configuration is still ongoing to date. In this paper, the recently developed Linear Particle Chain (LPC) impact damper is experimentally and numerically studied. The damper was attached to a single-degree-of-freedom structure represented by a spring damper system and released from an initial position. A SOLIDWORKS model for the damper has been developed and numerically simulated using the finite element approach. The Coulomb friction model of the colliding masses is added to the overall structure. The response of the system was analyzed and compared to the experimental results. The simulation model showed a faster decay when the number of balls in the LPC impact damper was increased and when different mass ratios were used which is in agreement with the experimental results.
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