Wheels are very important for the safety of a train. The diameter of the wheel is a significant parameter that needs regular inspection. Traditional methods only use the contact points of the wheel tread to fit the rolling round. However, the wheel tread is easily influenced by peeling or scraping. Meanwhile, the circle fitting algorithm is sensitive to noise when only three points are used. Th...

Much work by many researchers and developers [1][2][6] over the last century has developed a vast body of knowledge in the areas of locomotion utilizing wheels, legs, tracks, etc. for applications from research to realworld applications. This paper addresses a novel development of a steerable monotread, dubbed AURORA (Advanced Urban RObot for Reconnaissance and Assessment), proving that a singl...

Tread winding technology is widely used in the process of tire molding. Technologists use traditional process of developing new products with tread winding line relying only on personal experience for operations like manually layering of the new product tread outline. In this way, the rubber distribution stability of each layer will be affected, prolong development time, and increase the develo...

The purpose of this study was to characterize the physical and chemical properties of particles generated from the interaction of tires and road surfaces. Morphology, size distribution, and chemical composition were compared between particles generated using different methods, including on-road collection, laboratory generation under simulated driving conditions, and cryogenic breaking of tread...

To produce thin grooves in the tread portion of tires, tire molds contain a multitude of sipes, which are thin metal inserts that project into the tread rubber during molding and curing. The geometric design and location of sipes is based on tire performance as well as appearance. A completèfamily' of tires, typically consisting of a dozen or more tire sizes with similar tread designs, will req...

The tread of a tyre consists of a profile (pattern of grooves, sipes, and blocks) mainly designed to improve wet performance and to inhibit aquaplaning by providing a conduit for water to be expelled underneath the tyre as it makes contact with the road surface. Testing different tread profile designs is time consuming, as it requires fabrication of a tyre set using the tread profile, followed ...

The subsurface defect in the wheel tread caused from Rolling Stock Fatigue (RCF) has become more danger in high speed railway. The conventional UT and phased array UT have deficiency to find the subsurface defect from the tread surface because of limitation of ultrasonic near field. In this paper, the subsurface defect is studied by simulation and experimental results with ultrasonic technique....