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Objective assessment of static and dynamic seats under vehicular vibrations

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Objective assessment of static and dynamic seats under vehicular vibrations

Tchernychouk, Vladimir (1999) Objective assessment of static and dynamic seats under vehicular vibrations. Masters thesis, Concordia University.

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Abstract

In this dissertation, currently used experimental and analytical procedures for performance assessment of automotive seats are reviewed. A comparative study of vibration transmission performance of the seats obtained with a number of subjects representing 50 th percentile male population and with an equivalent passive load is performed. The experimental results are used to identify a Human Response Function to characterize the contributions of the human body. This function is further utilized to estimate the seat-human system performance from measured seat-passive load performance characteristics. A parametric sensitivity analysis is further carried out to investigate the influence of seat cushion parameters on the vibration transmission performance of the seat-human body model. Developments in dynamic seats (suspension seats) are briefly reviewed with special emphasis on their vibration attenuation performance. An analytical model of a vertical seat-suspension is developed using ADAMS software, incorporating the dynamic interactions of human body, variable friction properties and kinematics of the suspension linkages. The analytical model is validated using the results of laboratory tests performed with rigid load and human subjects under deterministic and random excitations

Divisions:Concordia University > Faculty of Engineering and Computer Science > Mechanical and Industrial Engineering
Item Type:Thesis (Masters)
Authors:Tchernychouk, Vladimir
Pagination:xviii, 180 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:Theses (M.A.Sc.)
Program:Mechanical and Industrial Engineering
Date:1999
Thesis Supervisor(s):Rakheja, Subhash
ID Code:872
Deposited By:Concordia University Libraries
Deposited On:27 Aug 2009 13:14
Last Modified:08 Dec 2010 10:17
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