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International Journal of Automotive Technology > Volume 7(3); 2006 > Article
International Journal of Automotive Technology 2006;7(3): 309-314.
COMPARISON OF RIDE COMFORTS VIA EXPERIMENT AND COMPUTER SIMULATION
W.S. YOO, S. J. PARK, D. W. PARK, M. S. KIM, O. K. LIM, W. B. JEONG
Pusan National University
ABSTRACT
In this paper, the ride comfort from a computer simulation was compared to the experimental result. For measuring ride comfort of a passenger car, acceleration data was obtained from the floor and seat during highway running with different speeds. The measured acceleration components were multiplied by the proper weighting functions, and then summed together to calculate overall ride values. Testing several passenger cars, the ride comforts were compared. In order to investigate the effect of vibration signals on the steering wheel, an apparatus to measure the vibrations and weighting functions on the steering wheel were designed. The effect of the steering accelerations on the ride comfort were investigated and added for the overall ride comfort. For the computer simulations, Korean dummy models were developed based on the Hybrid III dummy models. For the Korean dummy scaling, the national anthropometric survey of Korean people was used. In order to compare and check the validity of the developed Korean dummy models, dynamic responses were compared to those of Hybrid III dummy models. The computer simulation using the MADYMO software was also compared to the experimental results.
Key Words: Ride comfort, Simulation, Experiment
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