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Multi Axis Shaker Table
A simulation table is an automobile, automotive test system specifically designed for the high-frequency testing of vehicle components. It is sometimes also called a Multi-Axis Shaker Table or MAST. They can simulate acceleration and displacement outputs and reproduce key data collected on proving grounds, by providing a full six degrees of freedom (6 DOF). These test systems consist of Stewart platform, hexapod platform with a low resonance table on top. The test system can be used to simulate any kind of vibration in all six degrees of freedom. The movements of the test system are tightly controlled by a digital test controller. Simulation tables can be either electrical or hydraulical. Electric simulation table usually achieve a frequency range up to 25 Hz with a maximum payload of around 500 kilograms. For higher payloads or frequencies hydraulic simulation tables are used. Low frequency hydraulic simulation tables can easily reach 0.1 Hz to 120 Hz and test ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multi Axis Shaker Table
A simulation table is an automobile, automotive test system specifically designed for the high-frequency testing of vehicle components. It is sometimes also called a Multi-Axis Shaker Table or MAST. They can simulate acceleration and displacement outputs and reproduce key data collected on proving grounds, by providing a full six degrees of freedom (6 DOF). These test systems consist of Stewart platform, hexapod platform with a low resonance table on top. The test system can be used to simulate any kind of vibration in all six degrees of freedom. The movements of the test system are tightly controlled by a digital test controller. Simulation tables can be either electrical or hydraulical. Electric simulation table usually achieve a frequency range up to 25 Hz with a maximum payload of around 500 kilograms. For higher payloads or frequencies hydraulic simulation tables are used. Low frequency hydraulic simulation tables can easily reach 0.1 Hz to 120 Hz and test ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automobile
A car or automobile is a motor vehicle with Wheel, wheels. Most definitions of ''cars'' say that they run primarily on roads, Car seat, seat one to eight people, have four wheels, and mainly transport private transport#Personal transport, people instead of cargo, goods. The year 1886 is regarded as the birth year of the car, when German inventor Carl Benz patented his Benz Patent-Motorwagen. Cars became widely available during the 20th century. One of the first cars affordable by the masses was the 1908 Ford Model T, Model T, an American car manufactured by the Ford Motor Company. Cars were rapidly adopted in the US, where they replaced Draft animal, animal-drawn carriages and carts. In Europe and other parts of the world, demand for automobiles did not increase until after World War II. The car is considered an essential part of the Developed country, developed economy. Cars have controls for driving, parking, passenger comfort, and a variety of lights. Over the decades, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stewart Platform
A Stewart platform is a type of parallel manipulator that has six prismatic actuators, commonly hydraulic jacks or electric linear actuators, attached in pairs to three positions on the platform's baseplate, crossing over to three mounting points on a top plate. All 12 connections are made via universal joints. Devices placed on the top plate can be moved in the six degrees of freedom in which it is possible for a freely-suspended body to move: three linear movements x, y, z (lateral, longitudinal, and vertical), and the three rotations (pitch, roll, and yaw). Stewart platforms are known by various other names. In many applications, including in flight simulators, it is commonly referred to as a motion base. It is sometimes called a ''six-axis platform'' or ''6-DoF platform'' because of its possible motions and, because the motions are produced by a combination of movements of multiple actuators, it may be referred to as a ''synergistic motion platform'', due to the synergy (m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Test Controller
{{unreferenced, date=November 2008 Digital test controllers are devices (usually computer based) that provide motion control by processing digital signals. Typically a controller has inputs connected to sensors on the device they control, which measure the feedback, its current state (for example the current position), and process this signal to provide an output to a hydraulical, electrical or other type of servomechanism control of the controlled device, with the aim of matching a control signal. A good example is an elevator. The control signal is the button selects the floor the passenger wants to go. The controller of the elevator looks at which floor the elevator currently is (current position), at the floor selected (by the button) and by comparing them to each other derives a signal to control a servo (either hydraulic or electric) that makes the elevator move until the right floor is reached. In the older days test controllers were usually analog, but with the rapid develop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulic
Hydraulics (from Greek: Υδραυλική) is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on the applied engineering using the properties of fluids. In its fluid power applications, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids. Hydraulic topics range through some parts of science and most of engineering modules, and cover concepts such as pipe flow, dam design, fluidics and fluid control circuitry. The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue. Free surface hydraulics is the branch of hydraulics dealing with free surface flow, such as occurring in rivers, canals, lakes, estuar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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