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Stochastic Analysis of Energy Dissipation of a Half-Car Model on Nondeformable Rough Pavement

Title
Stochastic Analysis of Energy Dissipation of a Half-Car Model on Nondeformable Rough Pavement
Author
김은주
Keywords
Fuel energy consumption; Half-car; Lyapunov solution; Nondeformable pavement; Pade approximation; Stochastic road roughness
Issue Date
2017-07
Publisher
ASCE-AMER SOC CIVIL ENGINEERS
Citation
JOURNAL OF TRANSPORTATION ENGINEERING PART B-PAVEMENTS, v. 143, no. 4, Article no. 04017016
Abstract
With a large portion of vehicles still relying on the combustion of petroleum, the transportation sector was reported to be responsible for 27% of the greenhouse gas emissions in the United States in 2015. Within a vehicle, various mechanisms contribute to energy consumption, including tire-pavement rolling resistance and pavement condition. Recently, a stochastic pavement-vehicle interaction model was developed to describe the relationship between the road conditions and energy consumption. However, the investigations on a half-car model seem to be lacking. Thus, this paper presents a stochastic approach to determine the energy dissipated in the suspension of a half-car model on non-deformable rough pavement. The road profile is modeled as a filtered white noise and the input to the rear tire is delayed using an approximation. The resulting system is combined with the vehicle model to yield an augmented vehicle-pavement system. The equation governing the covariance of the response is solved to obtain the energy dissipation of the vehicle. The results of the studies illustrate the efficacy and the flexibility of the proposed approach. (C) 2017 American Society of Civil Engineers.
URI
https://ascelibrary.org/doi/10.1061/JPEODX.0000014https://repository.hanyang.ac.kr/handle/20.500.11754/114817
ISSN
2573-5438
DOI
10.1061/JPEODX.0000014
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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