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Modeling and Sensitivity Analysis of Heavy Vehicles Tire With Target of Determining Stiffness and Damping Characteristics
, M.Sc. Thesis Sharif University of Technology ; Saadat Foumani, Mahmoud (Supervisor) ; Fallah Rajabzadeh, Famida (Supervisor)
Abstract
Tire is one component of the suspension system and has beneficial effects on reducing vibrations caused to the vehicle. This study aims to determine the factors affecting the damping and stiffness of the tire is carried out. The modeling of factors were identified. For testing the modeling effort is to be made to the instruments used to measure the damping and stiffness of the tires. To make the structural static analysis, dynamic and modal was to have sufficient structural strength and the displacements and stresses are sensibly placed. Factors that have influence on the hardness of the ring diameter, the outer diameter of the tire, tire pressure, tire tread depth, tire wall thickness,...
Design and Prototyping a Mechanical Wheel for Mine Trucks
, M.Sc. Thesis Sharif University of Technology ; Durali, Mohammad (Supervisor) ; Saadat Foomani, Mahmood (Supervisor)
Abstract
Due to the excessive failures of tires used on mining trucks, which lead to significant economic and environmental damages, mine operators are seeking replacements for them. The ASW mechanical wheel, introduced by the American company Global Air Cylinder Wheel, is recognized as the most well-known alternative to pneumatic tires for mining trucks. Although this company has been active since 2004, it has not yet released a commercial product. This study examines the structural, behavioral, and operational characteristics of the mechanical wheel and its impact on the performance of mining trucks. The structure of the mechanical wheel consists of a set of hydro-pneumatic actuators that connect a...