空気ダンパの基礎的研究 : 第1報, 理論解析

抄録

Air damper has a great advantage that is independent of temperature change. This paper proposes an analytical approach for designing air damper with a piston and a cylinder. The characteristics of the air damper are depend on the properties of air : viscosity and compressibility. Thus, the air damper shows the so-called visco-elastic property : the applied force to the piston is resistant to the velocity and displacement of the piston. As a result, the air damper has two important factors, called damping coefficient and spring constant. Two types of air damper are discussed. Type I is a viscous damper whose resisting force is proportional to the piston velocity, and type II is a nonviscous damper whose resisting force is proportional to the velocity-squared of the piston. This paper leads to a simple and accurate method for designing these types of air damper.