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  Engineering Mechanics and machi

  Cam Analysis Apparatus

  The allows the dynamic investigation of cam mechanisms, as used in motors for actuation of the valves. The cam mechanism consists of 4 interchangeable cam plates and 2 different tracers. A mass and a spring are used to simulate the valve. In order to demonstrate the so-called “valve wobble”, the spring rate, mass and speed are adjustable within broad limits. A plotter allows the actual lift curves to be recorded. The open design allows the observation of every detail of the movement process. A stroboscope (not supplied) can be used to provide a particularly impressive view of the movement process and lift. The unit is intended for demonstration purposes in technical education. It is not suitable for use as a test stand for fatigue testing.

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  Engineering Mechanics and machi

  Shearing Force and Bending Moment Apparatus

  This demonstration unit facilitates the experimental investigation of the progression of the bending moment and shearing forces on a bar subject to point loads. In addition, the section principle commonly used in mechanics can be demonstrated. Due to the use of a low friction joint with two degrees of freedom at 1/3 of the span and two dynamometers, the measurements can be recorded directly from the bar. The deflection of the bar as result of the travel of the dynamometers and the horizontal alignment can be compensated and regulated using two adjustment bolts. The bar is loaded with graduated sets of weights that can be attached at any point on the bar.

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  Engineering Mechanics and machi

  Experimental Set Virtual Work

  Using this experimental set the deformation of a loaded bending bar by forces and moments is considered using the principle of virtual work. The set is intended for use with the universal testing frame . The set contains a test bar that can be clamped at both ends. In this way statically defined or undefined cases can be investigated as required. Forces or moments can be applied at any position, this feature permits different load cases to be investigated. For the determination of forces and deformation mech. dial gauges are used. An additional bearing with a dynamometer is used for the direct measurement of forces on the bar.

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  Engineering Mechanics and machi

  Pendulum Impact Tester 300Nm

  The pendulum impact testing machine is a solid unit specially designed for engineering lectures. It is used for performing the notched bar impact bending test with increased impact energy up to 300Nm. Two impact energy settings are available using an additional weight on the hammer. With this unit, a quality test can be performed on different metallic materials. The unit can, however, also be used for non-metallic specimens. The notched bar impact work required to deform the specimen can be read off directly from a trailing pointer on a large scale. An electromechanical two-hand trigger increases safety for the user. As an accessory, the system can also be equipped with an electronic goniometer, a measuring amplifier and software so that measured values can be read out on a PC and evaluated there.