scholarly journals A contribution to the research of the influence of road surface texture from the aspect of dynamic characteristics of motor vehicles

2018 ◽  
Vol 24 (4) ◽  
pp. 25-29
Author(s):  
Miroslav Demić ◽  
Đorđe Diligenski
Keyword(s):  
Dynamic Characteristics ◽  
Surface Texture ◽  
Road Surface ◽  
Motor Vehicles

Experimental Research on Dynamic Characteristics of a Rolling Agricultural Tire (Influence of Running Condition)

2013 ◽  
Author(s):  
Katsuhide Fujita ◽  
Takashi Saito ◽  
Mitsugu Kaneko
Keyword(s):  
Natural Frequency ◽  
Dynamic Behavior ◽  
Experimental Research ◽  
Dynamic Characteristics ◽  
Excitation Frequency ◽  
Road Surface ◽  
Natural Mode ◽  
The Road ◽  
On The Road ◽  
Agricultural Machines

When agricultural machines are operated on pavements, the vibration and noise caused by the interaction between the tire lugs and the road surface are inevitable. In conventional studies, it is considered that the dynamic behavior of a rolling agricultural tire is influenced by the vibration characteristics of the tire. Resonance occurs when the lug excitation frequency of the tire, which is defined as the lug number multiplied by the number of revolutions of the tire, becomes equal to the natural frequency of the tire. In other words, the rolling tire shows large vibrations in the direction of the natural mode corresponding to the natural frequency of the tire. However, in the conventional equipment, the diameter of the drum is smaller than that of the tire. Therefore, the real running condition on the road was not realized by the rolling test using the conventional equipment. In this study, a new equipment is produced to realize the running condition in the rolling test. The dynamic and vibratory characteristics of operating agricultural machine are investigated by using this new equipment. The obtained results are compared to the conventional ones and the influence of the running condition on dynamic characteristics of rolling tire is investigated.

Road surface texture and skid resistance

2015 ◽  
Vol 3 (4) ◽  
pp. 043001 ◽  
Author(s):  
Minh-Tan Do ◽  
Veronique Cerezo
Keyword(s):  
Surface Texture ◽  
Road Surface ◽  
Skid Resistance

scholarly journals Estimation method of surface texture parameters by inverse analysis of dynamic characteristics

2017 ◽  
Vol 4 (5) ◽  
pp. 16-00717-16-00717 ◽  
Author(s):  
Yoshinao KISHIMOTO ◽  
Yukiyoshi KOBAYASHI ◽  
Toshihisa OHTSUKA ◽  
Motoi NIIZUMA
Keyword(s):  
Dynamic Characteristics ◽  
Surface Texture ◽  
Inverse Analysis ◽  
Estimation Method ◽  
Texture Parameters

Observations on the Physical Aspects of Resistance to Skidding on Dry Roads and Particularly on Wet Roads

1956 ◽  
Vol 29 (4) ◽  
pp. 1425-1433 ◽  
Author(s):  
K. Knauerhase
Keyword(s):  
Great Influence ◽  
Boundary Surface ◽  
Road Surface ◽  
Motor Vehicles ◽  
Vector Diagram ◽  
Surface Adhesion ◽  
The Road ◽  
Wet Friction ◽  
Road Surfaces ◽  
Wetting Power

Abstract To ensure safety from skidding, attention has up to now been devoted to building rough surface roads, to the development of the proper vehicle construction with respect to this feature, and to the factor most directly involved, the tires. Special attention has been directed in connection with this latter phase to a much more open tread patterning and to the effect of decreasing tire inflation, both of which affect the life of the tire adversely. These steps neglected to take advantage of the physical effect of adhesion, which, without lowering the durability, now makes possible an enhanced contribution to the cohesive friction by the profile grooves which are of necessity retained to keep the weight down. The goal is, therefore, to provide the smooth surfaces of the tread pattern that come in contact with the road with the greatest possible physical gripping power, or adhesion. After illustrating the interfacial magnitudes with the help of a vector diagram, we shall survey the laws of boundary surface adhesion. Here the great influence of the liquid involved in wet friction becomes clear and the particularly favorable interfacial tension property of water can be assessed. Since skidding can occur only at the interfaces : rubber-water, or water-road, the requirement is as follows : both the greatest possible wetting power between rubber and water, and also between water and road surface, that is, hydrophilic properties in the rubber and hydrophilic road surfaces, in order to reduce the danger of skidding. Good insurance against skidding requires hydrophilic rubber and a hydrophilic road surface, for a tire that has been developed to be nonskidding holds on a hydrophilic road surface and skids on a hydrophobic road surface. A hydrophobic tire, on the other hand, skids on any wet road. Although considerable advances have been made with respect to safety from skidding since rubber tires were first developed for motor vehicles, with increase of speeds this problem demands our attention to a greater and greater degree. Safety from skidding can result only from the combined efforts of road and car builders, tire makers, and the chemists and physicists of all three groups.

scholarly journals Road Surface Texture Prints

Nature ◽  
1940 ◽  
Vol 145 (3662) ◽  
pp. 40-40
Keyword(s):  
Surface Texture ◽  
Road Surface

The effect of road surface texture on tyre wear

Wear ◽  
1970 ◽  
Vol 15 (1) ◽  
pp. 57-70 ◽  
Author(s):  
R.W. Lowne
Keyword(s):  
Surface Texture ◽  
Road Surface ◽  
Tyre Wear
Sign in / Sign up

Export Citation Format

Share Document