program trace
1.In this paper the program based on trace line method is used for the wheel rail space dynamic contact geometry relationship, some analysis and comparison of geometrical contact states between the different wear type treads and rails interactions are given, considered of the lateral section curvature radius and equivalent taper, the abilities in contact stress, the critical speed in straight line, and curve negociation performance are discussed.
4.In order to speed up the design of plough bottom surface, we have established the computing and drawing FORTRAN program. On the computer DJS-8 we have computed for the outline, the horizontal trace, the performance templet curves of plough surface. On the drafting machine DC300 we have drawn the graphs.
