創成機構の運動解析に関する研究

　バンケル型内燃機関のロータハウジングはトロコイド曲線の内周面を有する．この内周面を創成機構によって研削加工する場合、創成運動で生ずる慣性力や慣性トルクなどで機構が弾性変形しトロコイド曲線の加工精度が劣化する．高精度・高能率にトロコイド内周面を加工するには，この加工精度を解析的に予測しながら，創成機構を設計し研削盤を製作する必要がある．本論文では先ず，創成機構に作用する慣性力，慣性トルク，軸受荷重等の解析法と解析事例を述べた．

A rotor housing of a Wankel combustion chamber has a peri-trochoidal form that is machined by the internal grinder, which is operated by a form generating mechanism. This paper describes the motion analysis how and what kinds of forces and torques are acting on the mechanism in the process of machining. This mechanism is deformed elastically by inertia forces and torques and other loads that are caused in the processing motion. For that reason, the relation between a workpiece and a grinding wheel is derailed from the theoretical line in the process. Consequently even if the deformation is slight, the ground formative accuracy is affected badly. To improve machining this trochoidal form more precisely and efficiently, we have investigated the motion analysis about the mechanism. First of all, we have obtained theoretical results about force and torque acting on the mechanism to estimate the elastic deformation. Some results are presented in the form of graphs and tables.