Elimination of Branch Problem in Driving Crank Center point Plane for 3 Position Synthesis of 4 bar Mechanism

4절 기구의 3 위치 합성을 위한 구동 크랭크 고정점 영역상에서의 분기문제 해결

A method of eliminating the branch problem in driving crank center point plane for 3 position synthesis of 4 bar mechanism is introduced. By studying various transformation characteristics from the circle point plane into the center poi t plane, the curves in the center point plane transformed from the filemon line in circle point plane are analytically obtained, which will seperate the whole center point plane into many sub-areas for the selec- tion of the center point of the driving crank. And a simple method to identify which of the sub-areas will cause the branch problem is also presented. The method will allow the selection of the center point of driving crank without the branch problem.