This study considered the measure for bouncing produced on the movable part of an electromagnetic contactor during return. For this purpose, the way of thinking of a dynamic vibration absorber was applied to the collision problem. The results obtained are as follows. (1) The crossbar bounces approximately 3 mm after colliding twice against the housing. (2) Inserting pieces of urethane rubber (AC-6ME material) between the movable core and the crossbar under some conditions reduced the bounce to about one third. (3) This is due to a remarkable hysteresis characteristic of AC-6ME material seen under its compressive deformation.
Measure to Reduce the Bounce of a Movable Part in an Electromagnetic Contactor
Contributed by the Mechanisms Committee for publication in the Journal of Mechanical Design, Manuscript received March 2000. Associate Editor: M. Raghavan.
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Muramatsu , N., and Tsutsumi, K. (March 1, 2000). "Measure to Reduce the Bounce of a Movable Part in an Electromagnetic Contactor ." ASME. J. Mech. Des. June 2001; 123(2): 289–293. https://doi.org/10.1115/1.1365119
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