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http://dx.doi.org/10.5050/KSNVN.2005.15.10.1202

Development of the Computer Model Considering Flexible Effect of a Large-sized Truck on the Bump Road  

Moon, Il-Dong (현대자동차)
Chi, Chang-Hun (원광대학교 기계자동차공학부)
Kim, Byoung-Sam (순천제일대학 자동차기계과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.15, no.10, 2005 , pp. 1202-1210 More about this Journal
Abstract
This paper develops a computer model for estimating the bump characterisitcs of a cat)over type large-sized truck. The truck is composed of front and rear suspension systems, a frame, a cab, and ten tires. The computer model is developed using MSC.ADAMS. A shock absorber, a rubber bush, and a leaf spring affect a lot on the dynamic characteristic of the vehicle. Their stiffness and damping coefficient are measured and used as input data of the computer model. Leaf springs in the front and rear suspension systems are modeled by dividing them three links and joining them with joints. To improve the reliability of the developed computer model, the frame is considered as a flexible body. Thus, the frame is modeled by finite elements using MSC.PATRAN. A mode analysis is performed with the frame model using MSC.NASTRAN in order to link the frame model to the computer model. To verify the reliability of the developed computer model, a double wheel bump test is performed with an actual vehicle. In the double wheel bump, vortical displacement, velocity, acceleration are measured. Those test results are compared with the simulation results.
Keywords
Double Wheel Bump Test; Dynamic Characteristics; Finite Element Model; Flexible Body; Large-sized Truck; Ride Comfort; Vortical Acceleration;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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