自動車用マクファーソン形車輪懸架・操舵機構の運動特性解析(機械要素,潤滑,工作,生産管理など)  [in Japanese] Kinematic Analysis of MacPherson Strut Mechanism(Machine Elements and Manufacturing)  [in Japanese]

In this paper, we derive the closed-loop equations of the MacPherson strut mechanism as the spatial six-link mechanism of two degrees of freedom. With given values of steering and strut displacements, the formulas for analyzing the attitude of the strut are established. The results of analysis are verified experimentally. The static analysis is done under the several conditions, for example, the angle of the lower arm and the position of the steering rack are varied. By this analysis, it can be shown how the force transmitted through the rod is needed to steer the tires. From the results of analysis, we can know how the force preventing the smooth sliding of the strut occurs. We analyzed the sensitivities to show how the error of the assembling and processing had an effect on the kinematics of this mechanism. The sensitivities can be derived from partially differentiating the closed-loop equations with respect to the kinematic constants. A few of them are verified experimentally. Comparing with result of static analysis, we investigate if the cause of error involve in transmissibility.