원통치차의 강도평가 시스템 개발연구

Development of Strength and Durability Estimation System for Power Transmission Cylindrical Gears

본 연구에서는 강도의 측면에서 인벌류트 원통치차의 설계 및 성능평가를 돕 기위하여 퍼스널컴퓨터 상에서 간편히 수행할 수 있는 치차의 강도평가 시스템을 개발 한다.즉, 원통치차의 굽힘강도 및 면압강도와 이들과 관련하여 기하학적인 형상, 재질, 운전상태, 신뢰성, 안전계수 등 강도에 영향을 미치는 거의 모든 인자를 일목요 연하게 평가하고 이들이 강도에 미치는 영향을 판단할 수 있는 치차의 강도평가 과정 을 하나의 시스템으로 구성함으로써 설계현장 등에서 간편히 이용할 수 있도록 하고 최종적으로 설계의 자동화를 이룰 수 있도록 한다.

A strength and durability estimation system of involute cylindrical gears which are commonly used as power transmission devices is developed on the personal computer, which analyzed and/or evaluates the gear design and the service performance at the point of view of strength and durability. The typical considerations are the bending strength and the sunface durability, and the strength and durability estimations are carried out using the reliable standards of AGMA&ISO. In addition, the finite element analysis (FEM) of tooth bending stress is conducted in order to compare the real maximum stress with the estimaed bending stress by the standard. Therefore, the system is built so that the variables or factors considered differently in those standards and the strength & durability are appraised seperately by each method, and a series of the estimation processes is integrated into the system can be used in the initial design at the view point of strength and durability. And it is useful to the purpose of the trouble-shooting of gear system and the purpose of introducing the methods for maintaining design strength in service, with appraising the strength and durability after design or with appraising the influencing factors, as a whole. Therefore, this strength and durability estimation system can help the aim of automatic design of cylindrical gears.