Title: Demand-based optimal design of oscillator with parallel-layout viscous inerter damper
Abstract: Structural Control and Health MonitoringVolume 25, Issue 1 e2051 RESEARCH ARTICLE Demand-based optimal design of oscillator with parallel-layout viscous inerter damper Chao Pan, Chao Pan Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai, 200092 China College of Civil Engineering, Yantai University, Yantai, 264005 ChinaSearch for more papers by this authorRuifu Zhang, Corresponding Author Ruifu Zhang [email protected] orcid.org/0000-0003-2988-4412 Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai, 200092 China Correspondence Ruifu Zhang, Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China Email: [email protected] for more papers by this authorHao Luo, Hao Luo Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai, 200092 ChinaSearch for more papers by this authorChao Li, Chao Li Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai, 200092 ChinaSearch for more papers by this authorHua Shen, Hua Shen Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai, 200092 ChinaSearch for more papers by this author Chao Pan, Chao Pan Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai, 200092 China College of Civil Engineering, Yantai University, Yantai, 264005 ChinaSearch for more papers by this authorRuifu Zhang, Corresponding Author Ruifu Zhang [email protected] orcid.org/0000-0003-2988-4412 Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai, 200092 China Correspondence Ruifu Zhang, Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China Email: [email protected] for more papers by this authorHao Luo, Hao Luo Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai, 200092 ChinaSearch for more papers by this authorChao Li, Chao Li Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai, 200092 ChinaSearch for more papers by this authorHua Shen, Hua Shen Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai, 200092 ChinaSearch for more papers by this author First published: 30 May 2017 https://doi.org/10.1002/stc.2051Citations: 83Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Summary In this study, a demand-based optimal design method is proposed for an oscillator (a single-degree-of-freedom system) with a parallel-layout viscous inerter damper (PVID). The proposed design method overcomes some deficiencies of the existing method, which is based on the fixed-point theory and is mainly suitable for tuned mass dampers. Moreover, for the fixed-point method, the inherent damping of the primary structure is neglected, and the global optimal solution cannot be obtained. The proposed method can obtain a more rational and practical design for the actual design by minimizing both the response and the cost. The design problem of a PVID-equipped oscillator is transformed into a multi-objective optimization problem that can be solved using the ε-constraint approach, which is consistent with the concept of demand-based design. The dynamic response of the oscillator and the force of the PVID (i.e., the cost factor) are evaluated according to theories of random vibration to reduce the number of calculations required. A computer program is developed to perform demand-based parametric design of a PVID-equipped oscillator. Several design cases were examined under different excitation conditions using the computer program, and dynamic time history analyses were then conducted to verify the designs obtained. The results show that the proposed optimal design method identifies satisfactory designs more effectively than the existing method by obtaining PVID design parameter values that better meet the performance demand and simultaneously minimize the cost. Citing Literature Volume25, Issue1January 2018e2051 RelatedInformation