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Yaw Damper (railroad)
A yaw damper is a transverse mounted shock absorber used to prevent railcars and locomotives A locomotive is a rail vehicle that provides the motive power for a train. Traditionally, locomotives pulled trains from the front. However, push–pull operation has become common, and in the pursuit for longer and heavier freight train ... from swaying excessively from side to side. Yaw dampers prevent locomotives and passenger railcars from striking station platforms as they roll past them and reduce the gap that must be left between the railroad vehicle and the platform, improving safety. References External linksRailroad Yaw Damper Field Manual (archived) Rail technologies {{Rail-transport-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yaw Damper 001
Yaw or yaws may refer to: Measurement and technology Movement about the vertical axis * Yaw angle (or yaw rotation), one of the angular degrees of freedom of any stiff body (for example a vehicle), describing rotation about the vertical axis ** Yaw (aviation), one of the aircraft principal axes of rotation, describing motion about the vertical axis of an aircraft (nose-left or nose-right angle measured from vertical axis) ** Yaw (ship motion), one of the ship motions' principal axes of rotation, describing motion about the vertical axis of a ship (bow-left or bow-right angle measured from vertical axis) * Yaw rate (or yaw velocity), the angular speed of yaw rotation, measured with a yaw rate sensor * Yawing moment, the angular momentum of a yaw rotation, important for adverse yaw in aircraft dynamics Wind turbines * Yaw system, a yaw angle control system in wind turbines responsible for the orientation of the rotor towards the wind ** Yaw bearing, the most crucial and cost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yaw Angle
The Euler angles are three angles introduced by Leonhard Euler to describe the Orientation (geometry), orientation of a rigid body with respect to a fixed coordinate system.Novi Commentarii academiae scientiarum Petropolitanae 20, 1776, pp. 189–207 (E478PDF/ref> They can also represent the orientation of a mobile frame of reference in physics or the orientation of a general Basis (linear algebra), basis in three dimensional linear algebra. Classic Euler angles usually take the inclination angle in such a way that zero degrees represent the vertical orientation. Alternative forms were later introduced by Peter Guthrie Tait and George H. Bryan intended for use in aeronautics and engineering in which zero degrees represent the horizontal position. Chained rotations equivalence Euler angles can be defined by elemental geometry or by composition of rotations (i.e. chained rotations). The geometrical definition demonstrates that three consecutive ''elemental rotations'' (rotatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shock Absorber
A shock absorber or damper is a mechanical or hydraulics, hydraulic device designed to absorb and Damping ratio, damp shock (mechanics), shock impulses. It does this by converting the kinetic energy of the shock into another form of energy (typically thermal energy, heat) which is then dissipated. Most shock absorbers are a form of dashpot (a damper which resists motion via viscous friction). Description Pneumatic and hydraulic shock absorbers are used in conjunction with cushions and springs. An automobile shock absorber contains spring-loaded check valves and orifices to control the flow of oil through an internal piston (see below). One design consideration, when designing or choosing a shock absorber, is where that energy will go. In most shock absorbers, energy is converted to heat inside the viscous fluid. In hydraulic cylinders, the hydraulic fluid heats up, while in Pneumatic cylinder, air cylinders, the hot air is usually exhausted to the atmosphere. In other types of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locomotives
A locomotive is a rail vehicle that provides the motive power for a train. Traditionally, locomotives pulled trains from the front. However, push–pull operation has become common, and in the pursuit for longer and heavier freight trains, companies are increasingly using distributed power: single or multiple locomotives placed at the front and rear and at intermediate points throughout the train under the control of the leading locomotive. Etymology The word ''locomotive'' originates from the Latin 'from a place', ablative of 'place', and the Medieval Latin 'causing motion', and is a shortened form of the term ''locomotive engine'', which was first used in 1814 to distinguish between self-propelled and stationary steam engines. Classifications Prior to locomotives, the motive force for railways had been generated by various lower-technology methods such as human power, horse power, gravity or stationary engines that drove cable systems. Few such systems are sti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platform (rail)
A railway platform is an area in a train station alongside a railway Track (rail transport), track providing convenient access to trains. Almost all stations have some form of platform, with larger stations having multiple platforms. Grand Central Terminal in Midtown Manhattan, Midtown Manhattan hosts 44 platforms, more than any other rail station in the world. The world's longest station platform is at Hubballi Junction railway station, Hubballi Junction in India at .Gorakhpur gets world's largest railway platform ''The Times of India'' The Appalachian Trail station or Benson station in the United States, at the other extreme, has a platform which is only long enough for a single bench. Among some American train conductors, the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
