外文翻譯---銑削機(jī)床使用中的能源消耗特性及減排策略

1、 中文 中文 5140 字畢業(yè)設(shè)計（論文）外文翻譯 畢業(yè)設(shè)計（論文）外文翻譯課題名稱 課題名稱 系 別 專 業(yè) 機(jī)械工程及自動化 機(jī)械工程及自動化 班 級 學(xué) 號 姓 名

2、 指導(dǎo)教師 指導(dǎo)教師 - 2 -University of California and delivers a dynamic research platform to scholars worldwide.Energy Consumption Characterization and Reduction Strategies for Mill

3、ing Machine Tool Use Nancy Diaz，Elena Redelsheimer，David Dornfeld，Laboratory for Manufacturing and Sustainability，University of California at Berkeley, USAAbstract Since machine tools are used extensively throughout thei

4、r functional life and consequently consuming valuable natural resources and emitting harmful pollutants during this time, this study reviews strategies for characterizing and reducing the energy consumption of milling ma

5、chine tools during t heir use. The power demanded by a micromachining center while cutting low carbon steel under varied material removal rates was measured to model the specific energy of the machine tool. Thereafter

6、the power demanded was studied for cutting aluminum and polycarb onate work pieces for the purpose of comparing the difference in cutting power demand relative to that of steel. Keywords: Green Machine Tools; Energy Con

7、sumption Reduction;Specific Energy Characterization1 INTRODUCTION A product undergoes three life-cycle stages: manufacturing, use and end-of-life. Consumer products whose environmental impact is dominated by the use phas

8、e include light fixtures, computers, refrigerators, and vehicles, in general products that are used extensively during their functional life. All the while these products consume resources, in particular energy in the

9、 form of electricity or fuel. The machine tool is one such product. The use phase of milling machine tools has been found to comprise between 60 and 90% of CO2-equivalent emissions during its life cycle [1]. This study p

10、resents a method for predicting the electrical energy consumed in manufacturing a product for the purpose of reducing its environmental impact. In conducting a life cycle assessment, product designers may choose to opt f

11、or a process, economic input-output (EIO), or hybrid approach. The drawback of the process LCA, though, is that because this method entails acquiring process-specific data it is time consuming and therefore resource in

12、tensive. An alternative to measuring the machine tool’s electrical energy consumption directly, for example, is to use aggregate data as is done with EIO-LCA [2]. An EIO-LCA, therefore, is not specific to the design of a

13、 particular product. The strategies presented herein provide a method for more quickly generating manufacturing energy consumption estimates for a particular product. 1.1 Cutting load profile As described by Diaz et al.

14、in [3] the power demand of a machine tool is comprised of cutting, variable, and constant power components. The cutting power is the additional power drawn for the removal of material. The machine tool used in this anal