Improving the dynamic characteristics of body-in-white structure using structural optimization.
The dynamic behavior of a body-in-white (BIW) structure has significant influence on the noise, vibration, and harshness (NVH) and crashworthiness of a car. Therefore, by improving the dynamic characteristics of BIW, problems and failures associated with resonance and fatigue can be prevented. The d...
| Publicado en: | Scientific World Journal pp. 190214 - 190215 |
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| Autores principales: | , , , |
| Formato: | research Journal Article |
| Publicado: |
Wiley-Blackwell
2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=103838805&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 103838805 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 1537744X 1BX5 jtl: Scientific World Journal issn: 1537744X maglogo: N pubinfo: dt: 2014 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 103838805 103838805 NLM25101312 2012676205 10.1155/2014/190214 NLM25101312 PMC4101942 103838805 ppf: 190214 ppct: 1 formats: tig: atl: Improving the dynamic characteristics of body-in-white structure using structural optimization. aug: au: Yahaya Rashid, Aizzat S Ramli, Rahizar Mohamed Haris, Sallehuddin Alias, Anuar affil: Advanced Computational and Applied Mechanics (ACAM) Group, Centre for Transportation Research (CTR), Faculty of Engineering, Universiti Malaya, 50603 Kuala Lumpur, Malaysia. sug: subj: Noise Vibration Algorithms Equipment Design ab: The dynamic behavior of a body-in-white (BIW) structure has significant influence on the noise, vibration, and harshness (NVH) and crashworthiness of a car. Therefore, by improving the dynamic characteristics of BIW, problems and failures associated with resonance and fatigue can be prevented. The design objectives attempt to improve the existing torsion and bending modes by using structural optimization subjected to dynamic load without compromising other factors such as mass and stiffness of the structure. The natural frequency of the design was modified by identifying and reinforcing the structure at critical locations. These crucial points are first identified by topology optimization using mass and natural frequencies as the design variables. The individual components obtained from the analysis go through a size optimization step to find their target thickness of the structure. The thickness of affected regions of the components will be modified according to the analysis. The results of both optimization steps suggest several design modifications to achieve the target vibration specifications without compromising the stiffness of the structure. A method of combining both optimization approaches is proposed to improve the design modification process. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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