Investigation into discretization methods of the six-parameter Iwan model
Iwan model is widely applied for the purpose of describing nonlinear mechanisms of jointed structures. In this paper, parameter identification procedures of the six-parameter Iwan model based on joint experiments with different preload techniques are performed. Four kinds of discretization methods d...
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| Veröffentlicht in: | Mechanical systems and signal processing 2017-02, Vol.85, p.98-110 |
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| creator | Li, Yikun Hao, Zhiming Feng, Jiaquan Zhang, Dingguo |
| description | Iwan model is widely applied for the purpose of describing nonlinear mechanisms of jointed structures. In this paper, parameter identification procedures of the six-parameter Iwan model based on joint experiments with different preload techniques are performed. Four kinds of discretization methods deduced from stiffness equation of the six-parameter Iwan model are provided, which can be used to discretize the integral-form Iwan model into a sum of finite Jenkins elements. In finite element simulation, the influences of discretization methods and numbers of Jenkins elements on computing accuracy are discussed. Simulation results indicate that a higher accuracy can be obtained with larger numbers of Jenkins elements. It is also shown that compared with other three kinds of discretization methods, the geometric series discretization based on stiffness provides the highest computing accuracy.
•Six-parameter Iwan model is identified according to two preload techniques of joints.•Four discretization methods of the six-parameter Iwan model are provided.•Geometric series discretization based on stiffness provides the highest accuracy. |
| doi_str_mv | 10.1016/j.ymssp.2016.07.032 |
| format | Article |
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•Six-parameter Iwan model is identified according to two preload techniques of joints.•Four discretization methods of the six-parameter Iwan model are provided.•Geometric series discretization based on stiffness provides the highest accuracy.</description><identifier>ISSN: 0888-3270</identifier><identifier>EISSN: 1096-1216</identifier><identifier>DOI: 10.1016/j.ymssp.2016.07.032</identifier><language>eng</language><publisher>Berlin: Elsevier Ltd</publisher><subject>Accuracy ; Computation ; Computer simulation ; Discretization ; Energy dissipation ; Experiments ; Finite element analysis ; Finite element method ; Frictional contact ; Iwan model ; Jointed structure ; Parameter identification ; Simulation ; Stiffness</subject><ispartof>Mechanical systems and signal processing, 2017-02, Vol.85, p.98-110</ispartof><rights>2016 Elsevier Ltd</rights><rights>Copyright Elsevier BV Feb 15, 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c331t-46a0bc0550036e418cefa3149a77cd1b9919b02d1a041895690dfc3bdf18d7ca3</citedby><cites>FETCH-LOGICAL-c331t-46a0bc0550036e418cefa3149a77cd1b9919b02d1a041895690dfc3bdf18d7ca3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ymssp.2016.07.032$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Li, Yikun</creatorcontrib><creatorcontrib>Hao, Zhiming</creatorcontrib><creatorcontrib>Feng, Jiaquan</creatorcontrib><creatorcontrib>Zhang, Dingguo</creatorcontrib><title>Investigation into discretization methods of the six-parameter Iwan model</title><title>Mechanical systems and signal processing</title><description>Iwan model is widely applied for the purpose of describing nonlinear mechanisms of jointed structures. In this paper, parameter identification procedures of the six-parameter Iwan model based on joint experiments with different preload techniques are performed. Four kinds of discretization methods deduced from stiffness equation of the six-parameter Iwan model are provided, which can be used to discretize the integral-form Iwan model into a sum of finite Jenkins elements. In finite element simulation, the influences of discretization methods and numbers of Jenkins elements on computing accuracy are discussed. Simulation results indicate that a higher accuracy can be obtained with larger numbers of Jenkins elements. It is also shown that compared with other three kinds of discretization methods, the geometric series discretization based on stiffness provides the highest computing accuracy.
•Six-parameter Iwan model is identified according to two preload techniques of joints.•Four discretization methods of the six-parameter Iwan model are provided.•Geometric series discretization based on stiffness provides the highest accuracy.</description><subject>Accuracy</subject><subject>Computation</subject><subject>Computer simulation</subject><subject>Discretization</subject><subject>Energy dissipation</subject><subject>Experiments</subject><subject>Finite element analysis</subject><subject>Finite element method</subject><subject>Frictional contact</subject><subject>Iwan model</subject><subject>Jointed structure</subject><subject>Parameter identification</subject><subject>Simulation</subject><subject>Stiffness</subject><issn>0888-3270</issn><issn>1096-1216</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kMtOwzAQRS0EEqXwBWwisU6YifPyggWqeFSqxAbWlmM71FEbB9stlK_HJaxZjWbm3nkcQq4RMgSsbvvssPV-zPKYZFBnQPMTMkNgVYo5VqdkBk3TpDSv4ZxceN8DACugmpHlcthrH8y7CMYOiRmCTZTx0ulgvqfaVoe1VT6xXRLWOvHmKx2FE7GsXbL8FFFhld5ckrNObLy--otz8vb48Lp4TlcvT8vF_SqVlGJIi0pAK6EsAWilC2yk7gTFgom6lgpbxpC1kCsUEJusrBioTtJWddioWgo6JzfT3NHZj128nfd254a4kiMrcmwarMuoopNKOuu90x0fndkKd-AI_MiM9_yXGT8y41DzyCy67iaXjg_sjXbcS6MHqZVxWgaurPnX_wOD03a7</recordid><startdate>20170215</startdate><enddate>20170215</enddate><creator>Li, Yikun</creator><creator>Hao, Zhiming</creator><creator>Feng, Jiaquan</creator><creator>Zhang, Dingguo</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>20170215</creationdate><title>Investigation into discretization methods of the six-parameter Iwan model</title><author>Li, Yikun ; Hao, Zhiming ; Feng, Jiaquan ; Zhang, Dingguo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c331t-46a0bc0550036e418cefa3149a77cd1b9919b02d1a041895690dfc3bdf18d7ca3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Accuracy</topic><topic>Computation</topic><topic>Computer simulation</topic><topic>Discretization</topic><topic>Energy dissipation</topic><topic>Experiments</topic><topic>Finite element analysis</topic><topic>Finite element method</topic><topic>Frictional contact</topic><topic>Iwan model</topic><topic>Jointed structure</topic><topic>Parameter identification</topic><topic>Simulation</topic><topic>Stiffness</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Yikun</creatorcontrib><creatorcontrib>Hao, Zhiming</creatorcontrib><creatorcontrib>Feng, Jiaquan</creatorcontrib><creatorcontrib>Zhang, Dingguo</creatorcontrib><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Mechanical systems and signal processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Yikun</au><au>Hao, Zhiming</au><au>Feng, Jiaquan</au><au>Zhang, Dingguo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Investigation into discretization methods of the six-parameter Iwan model</atitle><jtitle>Mechanical systems and signal processing</jtitle><date>2017-02-15</date><risdate>2017</risdate><volume>85</volume><spage>98</spage><epage>110</epage><pages>98-110</pages><issn>0888-3270</issn><eissn>1096-1216</eissn><abstract>Iwan model is widely applied for the purpose of describing nonlinear mechanisms of jointed structures. In this paper, parameter identification procedures of the six-parameter Iwan model based on joint experiments with different preload techniques are performed. Four kinds of discretization methods deduced from stiffness equation of the six-parameter Iwan model are provided, which can be used to discretize the integral-form Iwan model into a sum of finite Jenkins elements. In finite element simulation, the influences of discretization methods and numbers of Jenkins elements on computing accuracy are discussed. Simulation results indicate that a higher accuracy can be obtained with larger numbers of Jenkins elements. It is also shown that compared with other three kinds of discretization methods, the geometric series discretization based on stiffness provides the highest computing accuracy.
•Six-parameter Iwan model is identified according to two preload techniques of joints.•Four discretization methods of the six-parameter Iwan model are provided.•Geometric series discretization based on stiffness provides the highest accuracy.</abstract><cop>Berlin</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ymssp.2016.07.032</doi><tpages>13</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Accuracy Computation Computer simulation Discretization Energy dissipation Experiments Finite element analysis Finite element method Frictional contact Iwan model Jointed structure Parameter identification Simulation Stiffness |
| title | Investigation into discretization methods of the six-parameter Iwan model |
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