Advanced Materials Research Vols. 945-949

Abstract: As general mechanic designing methods take long design cycle and consume many resources, though it could find a good design, it could not get the optimal one.Optimization design is the fruit of the combination of optimization mathematical method and modern computer technology, which enables to get the optimal parameters under various constrains, so that the optimal value could be achieved. Optimization design is a method to ensure better usability, lower cost and reducing weight and volume when normally use it. This method can also shorten the design cycle and enhance the design efficiency.

Abstract: Aimed at estimating the remaining driving range of electric vehicle (EV) on dynamic working condition and exploring the influences on remaining driving range estimation, combined GT-Drive and Matlab, EV simulation model and remaining driving range estimation model have established. Based on UDDS, compared simulation results with estimation results of remaining driving range, the influences on remaining driving range estimation have been discovered, then a optimization scheme is put forward. With the method of corrected parameter, the error of initial estimation value is reduced; when braking energy recovery module is added, EV simulation model is optimized. The results of test indicates that the optimized model has realized to accurately estimate the remaining driving range, meets the requirements of the expected estimation accuracy.

Abstract: With huge energy and resources consumption and serious environmental pollution during the manufacturing process in China, from the aspect of multiple views, the paper analyzes the operation mode of the green manufacturing and "four circulations" coupling mechanism including material flow, energy flow, information flow and discharge flow, which can be the basis for the enterprise to establish the optimal energy control and management strategy and other relevant research with the optimization objectives of minimum energy loss and environmental impact during production for green manufacturing.

Abstract: Green manufacturing is an advanced manufacturing mode as well as the fundamental way to the sustainable development of human society. Based on green manufacturing of auto companies, the advantages of green manufacturing and automotive companies for green materials applications is analyzed in the article. Green manufacturing of automotive companies is evaluated in this article, through analytic hierarchy process.

Abstract: On the base of green design concept, multi-functional product design is given a new meaning. It is no longer simply a combination of multi-functional functions, but to extend product function on the bases of no extra cost and no waste of materials. Through fuzzy functional design, integrated design of related functions, developing the secondary function of product, as well as enhancing the product spiritual function and other ways, we can achieve multi-functional design of products.

Abstract: With the development of global economy, resource shortage and environmental pollution is increasingly serious. Household electrical appliance industry is facing great pressure. The traditional design pattern already could not meet the developmental needs. Based on the whole of product life cycle, this paper studies the household electrical appliances green design methods, mainly including: green material selection design, green structure optimization design, green recycling design, from design source to improve the household electrical appliances environmental friendliness and market competitiveness.

Abstract: This paper analyzes the basic feature of the traditional residence in western Hunan “North Dong”. Besides, under the premise of protecting the traditional feature of the residence and special living patterns of the nation, it studies and introduces the modern living facilities, improves the indoor air environment, promotes the material performance, reduces the construction cost, and thus puts forward the suitability ecological updating technology system of the traditional wooden residence.

Abstract: Proposed a variant of the kinematic theory of engineering ground contact pressure . For disclosure of redundancy soil behavior of the load interacting with fencing or foundation used its dimensionless figure of soil deformation , presented as a nonlinear function .Has shown the equations of the intensity of lateral and vertical ground contact pressure on the wall and the foundation for the entire load range. Proposed an engineering reception accounting redistribution of lateral pressure on the wall, and the contact pressure on the foundation through the transformation ofcoefficient of subgrade resistance diagrams. Has shown the practical implementation of the kinematic theory of engineering ground contact pressure in the method of " mirroring " in relation to the thin walls of the wharf and the method of " traveling wave " for the foundations..

Abstract: Based on the idea of system theory and highlighting the main aspects of the contradiction, the working device of mechanical excavator is simplified to fewer degrees of freedom dynamic model by analysis, and the main structures of influencing dynamic factors and wire rope are regarded as elastic bodies, other structures as rigid bodies; Starting from the theoretical dynamic characteristic curve of excavator, utilizing typical working conditions as calculation conditions, using Lagrange equation as a method to solve the dynamic integrated constraint system, we can establish the dynamic equations of working device and get the maximum dynamic load and dynamic load coefficient, and provide a reliable basis for selection of the dynamic parameter and calculation of structure strength.

Abstract: A series of experiments have been conducted to investigate the stress wave attenuation mechanism and the response of sandwich panels made of steel face sheets with foam cores under blast loading in close range. Quantitative results including shock wave pressure and face sheet deflection were obtained and the deformation/failure modes of specimens were identified and discussed systematically. Results show that the face sheet deflection was reduced by adopting a higher density core, however, performance of sandwich panels in blast wave attenuation degrade. Cell collapse type of the central region of the foam core is dominated by brittle crushing under close-range blasting loading. All front face sheets produce localized failure at the focal area and global deformation in the peripheral region.