動圧オイルダンパの減衰力の温度依存性について

概要

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In this paper, the effect of environmental temperature on the damping properties of an oil damper is discussed. The oil damper can broadly be classified into two groups according to the generating mechanism of damping: viscous and nonviscous dampers. The viscous oil damper is a linear dashpot, whose damping is proportional to both the viscosity of oil and the velocity of vibrating members (usually piston). Whereas, the nonviscous oil damper is non-linear damper, whose damping is proportional to the density of oil and the velocity squared of the piston. Most of oil dampers are designed as a nonviscous damper, because it is considered that the damping force of the nonviscous oil damper is less dependent on the environmental temperature. We carefully examine the dependence of the damping force of the nonviscous oil damper on temperature. The experimental result shows that the dependence of the damping on the temperature is fairly large when the damper is driven at low velocity condition.
社団法人日本機械学会の論文
1999-01-25