According to actual situation of domestic enterprises,it introduces the disassembling strategy and relevant disassembly sequence planning methods.Based on the analysis of disassembly process of household appliances,it establishes the functional model and information model of disassembly information management system and develops the disassembly information management system.Taking disassembly of TV sets as an example,it proves the system effectiveness,generates disassembly process plan sheets.The generated disassembly process plan sheets are used in a color TV disassembly line of Chang Hong to guide the actual disassembling operation.

Vehicle crashworthiness is one of the most important indicators to assess the automotive performance, which is directly related with passenger's life and safety. Therefore, more attention has been paid to improve the automotive passive safety. This paper presents the analysis method based on energy flow analysis to solve the automotive crashworthiness problem. The energy transfer model is built based on the constraints analysis for product performance and the rational energy flow element partition. According to the energy transfer model, the energy absorption of each component can be attained from the finite element crash simulation result and also the energy distribution relationship can be analyzed. Based on the analysis results, the full front impact crashworthiness of a car is improved by modifying the energy flow path and distribution. It also demonstrates that the method is effective to solve the automotive crashworthiness problem.

A finite element model for a passenger car is built together with dummy and occupant restraint system.Full frontal impact simulation is performed,through which the acceleration curve of simulation and experiment is compared to validate the model.To improve inadequate crashworthiness of car structure,key parts are chosen by building linear response surface of parts thickness to energy absorption using orthogonal experiment.Several key parts such as front rail and front suspension bar are strengthened and reshaped to maintain the integrity of load path.It's seen from car impact simulation that the modified structure increases energy absorption and reduces HIC.The improvement of car crashworthiness is verified.

Two types of sign substrate material used for road signs and road safety markers, one constructed of reclaimed e-waste plastic and the other of the most commonly used aluminium, are compared in the context of life cycle assessment methodology. This paper also compares the different types of tools available, and determines a suitable tool for use in calculating the carbon footprint (CF) of the two types of sign substrate material. An estimate for the CF of each type of sign substrate material is calculated as the carbon dioxide equivalent. After calculating the CF of each type of sign substrate, a sensitivity analysis is conducted. The ultimate aim of the analysis was to indicate which parameters of the substrate manufacturing system have the strongest influence on the CF results in order to find ways for lowering the environmental impact such as climate change potential. The main finding of this study is that blank signs constructed of reclaimed e-waste plastic materials are more attractive in climate change potential than those made of aluminium. Also, this paper documents a quantity assessment method for the climate change potential of using sign substrate material constructed of reclaimed e-waste plastic in roadside applications instead of conventional aluminium.

A variable screening method based on energy flow analysis is provided for significant variables selection in crashworthiness optimizing. Two quantities, significance and specific energy absorption, are used to screen design variables. These quantities are calculated from energy relation matrix and energy absorption of parts. Energy relation matrix is built from finite element crash simulation result to describe energy flow path in parts during impact. The method is applied in the case of a car engine room under frontal impact. Optimization for lightweight using response surface method is performed on the reduced variable set at a relatively low computational cost.

This paper presents the design method of electromechanical products for saving energy based on energy flow analysis. The energy transfer model and energy correlation model are built through analyzing the relation of energy flow and products performance in order to address the conflict between energy saving and performance optimization. Based on the energy transfer model, the performance pertinences and performance margins of electromechanical products are analyzed with CAE technology and value engineering theory. Finally, the split air-conditioner’s outdoor unit is studied and the design method for saving energy based on energy flow analysis is adopted to solve the conflict between air flow increasing and noise reduction.