The towed trailer method for skid resistance measurements is a practical one for characterizing the friction characteristics of highway pavements, and has been standardized by the ASTM. This paper presents a mathematical model of the trailer which includes roll, pitch, and vertical motion. The skid resistance calculated by using this model gives an excellent check on the standard ASTM skid number formula. The response time and damping effect after locking one test wheel can be clearly seen in this model. Possible effects of the dimensions of trailer, stiffness of suspension system, tire pressure, etc to skid resistance can also be examined. (Author)
The Skidding of Vehicles, A Dynamic Analysis. Report No. 4. (A Dynamical Analysis of a Towed Tw--Wheel Trailer)
1971
27 pages
Report
Keine Angabe
Englisch
The Skidding of Vehicles, A Dynamic Analysis
NTIS | 1971
|The Skidding of Vehicles, A Dynamic Analysis
NTIS | 1970
|A Dynamical Analysis of a Towed Two-Wheel Trailer1
Taylor & Francis Verlag | 1972
|