Design of machine and machine elements
Machine design
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 correct utilization of the properties of engineering materials. Economic considerations are usually of prime importance when the design of new machinery is undertaken. In general, the lowest over-all costs are designed. Consideration should be given not only to the cost of design, manufacture the necessary safety features and be of pleasing external appearance. The objective is to produce a machine which is not only sufficiently rugged to function properly for a reasonable life, but is at the same time cheap enough to be economically feasible.
The engineer in charge of the design of a machine should not only have adequate technical training, but must be a man of sound judgment and wide experience, qualities which are usually acquired only after considerable time has been spent in actual professional work.
机器和机器零件的设计
机器设计
机器设计是为了特定的目的而发明或改进机器的一种艺术。一般来讲，机器是有多种不同的合理设计并有序装配在一起的部件构成的，在最初的机器设计阶段，必须基本明确负载、元件的运动情况、工程材料的合理使用性能。负责新机器的设计最初的最重要的是经济性考虑。一般来说，选择譆@杀咀畹偷纳杓品桨福唤鲆悸巧杓啤⒅圃臁⑾邸沧暗某杀尽；挂悸欠竦姆延茫狄Ｖけ匾陌踩阅芎兔拦鄣耐庑巍Ｖ圃旎鞯哪勘瓴唤鲆非蟊Ｖぶ挥霉δ艿暮侠硎倜挂Ｖぷ愎槐阋艘酝北Ｖて渚玫目尚行浴８涸鹕杓苹鞯墓こ淌Γ唤鲆ㄒ档呐嘌担冶匦胧且桓鲎既放卸隙钟蟹岣痪榈娜耍哂幸恢钟凶愎皇奔浯邮伦诺氖导使ぷ鞯乃刂省Ⅻbr>
