精选优质文档-倾情为你奉上Unit5 Design of machine and machine elements机器和机器零件的设计Machine design机器设计Machine design is the art of planning or devising new or improved machines to accomplish specific purposes. In general, a machine will consist of a combination of several different mechanical elements properly designed and arranged to work together, as a whole. During the initial planning of a machine, fundamental decisions must be made concerning loading, type of kinematic elements to be used, and
