1995-02-01

Development of New Torsional Vibration Rubber Damper of Compression Type 950522

The dynamic characteristics of the rubber dampers of compression type have been investigated in comparison with the conventional rubber dampers of shear type. The compression - type damper has been designed so as to produce compression force on the rubber part when torsional torque acts upon it.
This research report proposes the design method of the new compression - type rubber dampers.
The new rubber dampers have been fabricated on an experimental basis in accordance with the design method formulated by us. With the new dampers equipped in a 6 - cylinder, in - line diesel engine, the dynamic characteristics of stiffness and damping have been examined through experiments.
In comparison of the experimental results between the new compression - type rubber damper and the conventional shear - type rubber damper, it has been revealed that the compression - type rubber damper has some advantageous characteristics. The damping performance of the compression - type rubber damper is superior to that of the shear - type rubber damper particularly in the high - speed rotational range. Also, having excellent durability, lower possibility of variation in dynamic characteristics and smaller loss energy, the compression - type rubber damper is advantageous for torsional stiffness setting in damper designing.

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