Volume 15, Issue 12 (2016)                   Modares Mechanical Engineering 2016, 15(12): 279-286 | Back to browse issues page

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Zargar O, Masoumi A, Ashoori M R. A conceptual model for the dynamical analysis of vehicle wheelhouse in the early stage of design. Modares Mechanical Engineering. 2016; 15 (12) :279-286
URL: http://journals.modares.ac.ir/article-15-495-en.html
Abstract:   (2510 Views)
Nowadays the Computer Aided Engineering (CAE) technique is widely used for improving Noise Vibration Harshness (NVH) performance of vehicles. High complexities in the Body In White (BIW) of vehicles lead the developed CAE models to become complex by which the optimization process will become very hard. Concept modeling could be a suitable replacement to overcome the mentioned limitations. Dynamic characteristics such as natural frequencies and mode shapes could be studied in the early phase of design with very low amount of calculations with the concept model. For this purpose, a developed concept model has been presented for the wheelhouse. The developed concept model uses approximated equivalent beam elements to model the beam like and panels of the structures. Also, the experimental test and numerical model have been utilized for the validation of the developed concept model. Two criteria of natural frequencies and corresponding mode shapes have been considered as the measure of validation. The results showed good correlation with corresponding advanced CAE models as well as experimental tests in low frequency range. The results showed that the developed concept model in this research is a powerful and effective tool to enhance and optimize the NVH performance of the vehicle in the early stage of design.
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Article Type: Research Article | Subject: Vibration
Received: 2015/09/19 | Accepted: 2015/10/23 | Published: 2015/11/30

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