英语翻译机械设计是机械工程的重要组成部分,是机械生产的第一步,是决定机械性能的最主要的因素.机械设计的努力目标是：在各种

英语翻译
机械设计是机械工程的重要组成部分,是机械生产的第一步,是决定机械性能的最主要的因素.机械设计的努力目标是：在各种限定的条件(如材料、加工能力、理论知识和计算手段等)下设计出最好的机械,即做出优化设计.优化设计需要综合地考虑许多要求,一般有：最好工作性能、最低制造成本、最小尺寸和重量、使用中最可靠性、最低消耗和最少环境污染.这些要求常是互相矛盾的,而且它们之间的相对重要性因机械种类和用途的不同而异.设计者的任务是按具体情况权衡轻重,统筹兼顾,使设计的机械有最优的综合技术经济效果.过去,设计的优化主要依靠设计者的知识、经验和远见.随着机械工程基础理论和价值工程、系统分析等新学科的发展,制造和使用的技术经济数据资料的积累,以及计算机的推广应用,优化逐渐舍弃主观判断而依靠科学计算.
本论文介绍了Pro/Engineer是3D产品设计的行业标准.作为业界领先的生产效率工具,它促进用户采用最佳设计做法,同时确保遵守业界和公司的标准.集成的参数化 3D CAD/CAM/CAE 解决方案可让您的设计速度比以前都要快,同时最大限度地增强创新力度并提高质量,最终创造出不同凡响的产品.
本设计产品为手电筒,本产品是由筒头、筒身、筒尾、按钮、尼龙件组成.我们将每一部分一一设计出,再将每一部分装配在一起就组成了我们所设计的手电筒.
关键词：机械设计,Pro/E,装配,着色.

The mechanical design is an important part of mechanical engineering, mechanical production the first step, is to decide and mechanical properties of the main factors. The mechanical design efforts goal is: in all kinds of limited conditions (such as materials, processing ability, knowledge and calculation method and so on) make the best of mechanical design, namely make optimization design. Optimization design need comprehensive consideration, generally have many demands: best work performance, the lowest manufacturing costs and minimal size and weight, use the reliability, the lowest in cost and at least the pollution of the environment. These requirements are often conflicting, and between them the relative importance for mechanical types and different purposes of and different. The designer's task is according to the specific circumstances weigh weight, the overall consideration, which makes the design of mechanical have the best comprehensive technical and economic effect. In the past, the design optimization of the designer relies mainly on the knowledge, experience and vision. With the basic theory of mechanical engineering and value engineering, system analysis and so on the new development of the discipline of, the production and use of technical and economic data material accumulation, and the popularization and application of the computer, optimization gradually abandon subjective judgment and rely on scientific computing.
This paper introduces the Pro/e is 3 D product design standards for the industry. As of the industry leading production efficiency tool, it promotes the best design practice, users and ensure compliance to industry and the company standard. Integrated parameter 3 D CAD/CAM/CAE solution allows you to design speed faster than ever before, and maximizing innovation and improve quality, and eventually create a unique products.
This product design for a flashlight, this product is by tube head, tube body, tube tail, button, nylon a composition. We will each part design, then one will each part of the assembly together comprise the we designed by flashlight.
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