STUDY ON A NUMERICAL METHOD FOR THE DYNAMIC RESPONSE OF BOLTED STRUCTURE UNDER PRETENSION AND IMPACT LOADS
Base on the meticulous model of threaded bolt,one numerical method to research the dynamic response of structure with threaded bolt under pretension is presented. In the method,balanced penalty function method is used to deal with the thread contact problem,and the exponential pressure-overclosure i...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2015-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.06.018 |
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| _version_ | 1841534714023772160 |
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| author | GUO LiLun CHEN Zhongfu LUO JingRun CHEN Gang |
| author_facet | GUO LiLun CHEN Zhongfu LUO JingRun CHEN Gang |
| author_sort | GUO LiLun |
| collection | DOAJ |
| description | Base on the meticulous model of threaded bolt,one numerical method to research the dynamic response of structure with threaded bolt under pretension is presented. In the method,balanced penalty function method is used to deal with the thread contact problem,and the exponential pressure-overclosure is adopted. Pretension force is defined as a couple on the nut directly,since the helical model of the thread is obtained. Compared to the traditional pretension modeling method,it is not only simpler but also more reasonable. A method used to solve the static and dynamic coupling problem is presented,since the structure is under the static pretension force and the impact load synchronously. Firstly,the static response for the structure under pure pretension is analyzed. Then,the dynamic response is calculated taking the statically deformed state as the initial reference.For the mouth shape bolted structure,the numerical method presented in this article was used to study the dynamic response. The strain history of the thread bar was identical to the experiment results perfectly,and the maximal relative error of the pulse width or amplitude of the strain wave was less than twenty percent. |
| format | Article |
| id | doaj-art-c3a866378d4041b5ae1203c29f2b84b7 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2015-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-c3a866378d4041b5ae1203c29f2b84b72025-01-15T02:37:40ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692015-01-01371119112330593410STUDY ON A NUMERICAL METHOD FOR THE DYNAMIC RESPONSE OF BOLTED STRUCTURE UNDER PRETENSION AND IMPACT LOADSGUO LiLunCHEN ZhongfuLUO JingRunCHEN GangBase on the meticulous model of threaded bolt,one numerical method to research the dynamic response of structure with threaded bolt under pretension is presented. In the method,balanced penalty function method is used to deal with the thread contact problem,and the exponential pressure-overclosure is adopted. Pretension force is defined as a couple on the nut directly,since the helical model of the thread is obtained. Compared to the traditional pretension modeling method,it is not only simpler but also more reasonable. A method used to solve the static and dynamic coupling problem is presented,since the structure is under the static pretension force and the impact load synchronously. Firstly,the static response for the structure under pure pretension is analyzed. Then,the dynamic response is calculated taking the statically deformed state as the initial reference.For the mouth shape bolted structure,the numerical method presented in this article was used to study the dynamic response. The strain history of the thread bar was identical to the experiment results perfectly,and the maximal relative error of the pulse width or amplitude of the strain wave was less than twenty percent.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.06.018Threaded boltNumerical methodPre-tension forceDynamic response |
| spellingShingle | GUO LiLun CHEN Zhongfu LUO JingRun CHEN Gang STUDY ON A NUMERICAL METHOD FOR THE DYNAMIC RESPONSE OF BOLTED STRUCTURE UNDER PRETENSION AND IMPACT LOADS Jixie qiangdu Threaded bolt Numerical method Pre-tension force Dynamic response |
| title | STUDY ON A NUMERICAL METHOD FOR THE DYNAMIC RESPONSE OF BOLTED STRUCTURE UNDER PRETENSION AND IMPACT LOADS |
| title_full | STUDY ON A NUMERICAL METHOD FOR THE DYNAMIC RESPONSE OF BOLTED STRUCTURE UNDER PRETENSION AND IMPACT LOADS |
| title_fullStr | STUDY ON A NUMERICAL METHOD FOR THE DYNAMIC RESPONSE OF BOLTED STRUCTURE UNDER PRETENSION AND IMPACT LOADS |
| title_full_unstemmed | STUDY ON A NUMERICAL METHOD FOR THE DYNAMIC RESPONSE OF BOLTED STRUCTURE UNDER PRETENSION AND IMPACT LOADS |
| title_short | STUDY ON A NUMERICAL METHOD FOR THE DYNAMIC RESPONSE OF BOLTED STRUCTURE UNDER PRETENSION AND IMPACT LOADS |
| title_sort | study on a numerical method for the dynamic response of bolted structure under pretension and impact loads |
| topic | Threaded bolt Numerical method Pre-tension force Dynamic response |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2015.06.018 |
| work_keys_str_mv | AT guolilun studyonanumericalmethodforthedynamicresponseofboltedstructureunderpretensionandimpactloads AT chenzhongfu studyonanumericalmethodforthedynamicresponseofboltedstructureunderpretensionandimpactloads AT luojingrun studyonanumericalmethodforthedynamicresponseofboltedstructureunderpretensionandimpactloads AT chengang studyonanumericalmethodforthedynamicresponseofboltedstructureunderpretensionandimpactloads |