Researches on Life Cycle Energy Analysis Method for Mechanic Products

Considered the energy property of mechanic products as the research object, the Life-cycle theory is applied in the energy analysis. Based on the analysis of energy-consuming characteristics of mechanic products, the product life-cycle energy model is set up. By analysing the energy factors, the quantitative energy formula for each stage is presented. At last, by the application of the energy model and the characteristic analysis, the design alternative can be selected and the design parameters can be optimised, and the instance of electricity kettle is demonstrated that the model and method is applicable and effective.