Adaptive Electromagnetic Induction Electrorheological Torsional Vibration Damper

Abstract

The invention discloses a self-adaptive electromagnetic induction electrorheological torsional vibration damper. According to the self-adaptive electromagnetic induction electrorheological torsional vibration damper, an anti-wearing lining is arranged on a shell, an installation notch is formed in the anti-wearing lining to allow a magnet inner core disc to be embedded in, the gap between the shell and the magnet inner core disc is filled with damping fluid, and a through magnetic induction coil is wound around the shell; a plurality of conducting strips are arranged on the surface of the position, in contact friction with the bottom end of the magnet inner core disc, of the anti-wearing lining and at the inner lower end of the shell, the conducting strips are connected in series and then connected to an A / D converter through wires, the current output ends of the magnetic induction coil are connected to a controller, alternating currents are converted into direct currents by the A / D converter and then are supplied to the controller to provide control currents, and both the anti-wearing lining and the magnet inner core disc are annular. The damping characteristic of the self-adaptive electromagnetic induction electrorheological torsional vibration damper can be adjusted automatically according to the amplitude of torsional vibration of a crankshaft, magnetic induction and currents can be changed through the vibration amplitude to further change the damping force of electrorheological fluid, and then the damping effect of the crankshaft can be good under different rotating speeds.

Description

technical field [0001] The engine vibration damping technology of the invention specifically relates to an electro-rheological torsional vibration damping device in an adaptive electromagnetic induction mode. Background technique [0002] As we all know, the engine will inevitably produce torsional vibration during operation, which will reduce the efficiency of machinery and equipment, and even cause fatigue damage to the crankshaft or drive shaft, especially in high-speed, high-pressure engines. Sometimes the torsional vibration intensity of the shaft system caused by long-term vibration does not reach the level of crankshaft fracture, but the torsional deformation of the crankshaft will cause the main bearing bush to peel off and burn, and the timing gear or other transmission accessories will be damaged. In addition, the torsional deformation of the crankshaft will also increase the engine noise. Therefore, reducing torsional vibration is an urgent problem to be solved i...

AI Technical Summary

Problems solved by technology

At the same time, the energy generated by the torsional vibration of the crankshaft dissipates the heat through the silicon oil outside the inertia disc, and the vibration energy cannot be effectively recovered and utilized.

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