This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Modeling and Experimental Tests of a Mechatronic Device to Measure Road Profiles Considering Impact Dynamics
ISSN: 0148-7191, e-ISSN: 2688-3627
Published November 19, 2002 by SAE International in United States
Annotation ability available
The objective of this work is the theoretical and experimental investigation of the dynamical behavior of a mechanism designed to measure road profiles. The design solution allows the measurement of two road profiles independently and eliminates the effects of the vehicle dynamics on the results. For describing the mechanism dynamics, a theoretical model employing the Newton-Euler's Method is developed. Non-linear equations of motions and constraint equations are numerically solved. A test rig is specially designed, aiming at testing the physical model in laboratory. Theoretical and experimental results show that the contact between the mechanism and the road profiles is not permanent depending on: (a) the mechanism parameters; (b) the linear velocity over a surface; (c) the amplitude of the road profiles. Impact dynamics is taken into account while elaborating the theoretical. A time variant system of equations is achieved and solved, making possible the determination of the operational range (linear velocity limits) of the mechanism, without loss of contact with the road.
Citationde Souza, A. and Santos, I., "Modeling and Experimental Tests of a Mechatronic Device to Measure Road Profiles Considering Impact Dynamics," SAE Technical Paper 2002-01-3474, 2002, https://doi.org/10.4271/2002-01-3474.
- BEN-HAIM, Y. ELISHAKOFF, I. 1991 “Convex Models of Vehicle Response to Unknown but Bounded Terrain.” Journal of Applied Mechanics United States 58 354 361
- DOUGHTY, S. 1988 “Mechanics of Machines.” New York John Wiley & Sons
- FOHEY, D. R. 1984 “Non-Contact Sensor, System and Method with Particular Utility for Measurement of Road Profile.” 26 June 1984 K. C. Law Engineers Inc. Farmington Hills, Michigan, U.S.A.
- GILLESPIE, T. D. 1992 “Fundamentals of Vehicle Dynamics.” Warrendale Society of Automotive Engineers Inc.
- HODGES, H. C et al. 1991 “Method and Apparatus for Detemining Terrain Surface Profiles.” 19 Nov. 1991 Hodges Transportation Inc. Carson City, Nevada, U.S.A.
- LIEH, J. QI, W. 1995 “Simulation of Dynamic Truck Loading on Pavements Using Measured Road Roughness.” Transportation Research Record 1501 13 21
- MOLENAAR, A. A. A. SWEERE, G. T. 1981 “Road Roughness: Its Evaluation and Effect on Riding Comfort and Pavement Life.” Transportation Research Record 836 1501 41 49
- PFEIFFER, F. GLOCKER, C. 1996 “Multibody Dynamics with Unilateral Contacts” Wiley Series in Nonlinear Sciencies New York John Wiley & Sons
- SANTOS, I. F. 2000 São Paulo Makron Books
- SANTOS, I. F. RONCOLETTA, F. STRADIOTTO, V. Z. SOUZA, A. 1999 Society of Automotive Engineers SAE, paper n. 1999-01-2987
- SOUZA, A. 2001 Brazil 177
- SPANGLER, E. B. 1983 “Method and System for Measurement of Road Profile.” 27 Dec. 1983 Blomfield Hills, Michigan, U.S.A.
- WALKER, C. M. BROWN, G. R. 1988 “Non-Contact Sensor with Particular Utility for Measurement of Road Profile.” 22 Nov. 1988 K. J. Law Engineers Inc. Farmington Hills, Michigan, U.S.A.
- WAMBOLD, J. C. DEFRAIN, L. E. HEGMON, R. R. MCGHEE, K. REICHERT, J. SPANGLER, E. B. 1981 “State of the Art of Measurement and Analysis of Road Roughness.” Transportation Research Record 836 Washington D. C. 21 29
- YONG, R. N. EIYO, F. 1990 “Road Surface Roughness and Tyre Performance.” Journal of Terramechanics Great Britain 27 3 219 239