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Drawbar pull is the difference between tractive effort available and tractive effort required to overcome resistance at a specified speed. Drawbar pull data for a vehicle is usually determined by measuring the amount of available tractive force using a dynamometer , and then combining that data with coastdown [ 1 ] data to obtain the available ...
Traction (mechanics) Traction, traction force or tractive force is a force used to generate motion between a body and a tangential surface, through the use of either dry friction or shear force. [1][2][3][4] It has important applications in vehicles, as in tractive effort. Traction can also refer to the maximum tractive force between a body and ...
The Panhard rod is a simple device designed to prevent lateral movement. [2] It consists of a rigid bar running sideways in the same plane as the axle, connecting one end of the axle to the car body or chassis on the opposite side of the vehicle. The bar attaches on either end with pivots that let it swivel upwards and downwards only, limiting ...
A bogie (/ ˈboʊɡi / BOH-ghee) (or truck in North American English) is a chassis or framework that carries a wheelset, attached to a vehicle—a modular subassembly of wheels and axles. Bogies take various forms in various modes of transport. A bogie may remain normally attached (as on many railroad cars and semi-trailers) or be quickly ...
The major forces that accelerate a vehicle occur at the tires' contact patches.Since these forces are not directed through the vehicle's CoM, one or more moments are generated whose forces are the tires' traction forces at pavement level, the other one (equal but opposed) is the mass inertia located at the CoM and the moment arm is the distance from pavement surface to CoM.
Automatic chains were invented in 1941 in the United States [1] and Sweden in 1977 [citation needed]. Snow chains, or tire chains, are devices fitted to the tires of vehicles to provide increased traction when driving through snow and ice. Snow chains attach to the drive wheels of a vehicle or special systems deploy chains which swing under the ...
Traction engine. A traction engine is a steam-powered tractor used to move heavy loads on roads, plough ground or to provide power at a chosen location. The name derives from the Latin tractus, meaning 'drawn', since the prime function of any traction engine is to draw a load behind it.
A diesel road train in Alice Springs, c. 1938 - 1939. A road train, also known as a land train or long combination vehicle (LCV) is a semi-truck used to move road freight more efficiently than single-trailer semi-trucks. It consists of one semi-trailer or more connected together with or without a tractor. [ 1 ]