Advanced Materials Research Vol. 421

Abstract: The ideal performance of a small engine requires changeable intake pipeline volume while engine speed varies, as been recognized in former study. However, an intake pipeline with changeable volume is tremendously difficult to achieve. This paper presents an innovative three-pipeline model by experimental design optimization to simulate a simple changeable volume pipeline. The primary goals contain the promotion of lower-speed torque, the fuel consumption; emissions of CO and HC are expected to reduce simultaneously. The optimum diameters, lengths of three pipelines, and the proper timing of switching three valves among lower speed pipe and higher speed pipe can be obtained by proposed integration method

Abstract: The popular finite element packages can quite well provide the structural behaviors for a given model, but the optimal design technology based on FEM is not so mature for large structures for lacking perfect sensitivity analysis. The optional design of a composite wing is accomplished by implanting semi-analytical sensitivity analysis technology into ANSYS. The structure total mass is reduced about 24%. The optimum solution not only satisfies all the restrictions, but also exhibits more uniform strain distribution. The workload of coding is reduced distinctly by this method, and the research is focused on the more important aspect of sensitivity analysis, which is useful in the engineering problems.

Abstract: This document proposes a method of conceptual design of electromechanical products based on KBE(knowledge-based engineering), in order to improve the efficiency of the conceptual design about electromechanical products and avoid the repetitive work of the traditional design, then establishes a system model for that. it completes the conceptual design of products through data mining, rule-based reasoning and other key technologies. A case of reducer design shows that the method is feasible and practical for the conceptual design of electromechanical products.

Abstract: Through the analysis of the formation, evolution and extension of the concept of new Chinese furniture, the new Chinese furniture, put forward the basic concept and idea of the innovative design of new Chinese furniture, focused on specific method for the function extension, technological innovation and form reconstruction, and provides theoretical guidance for the design practice.

Abstract: T-shirt attracts a crowd of various consumers and endures worldwide popularity for both ever-changing style and colour-rich. In this article, it takes 42 men’s T-shirts as the objects, “fashionable” and “preferable” as emotional stimuli words were used from the point of view visual cognition. The aim of this paper is to provide concrete basis for the design of more fashionable and preferable emotion of men’s T-shirts to meet the needs of senior consumers.

Abstract: Abstract. According to the problems that how to excavate the essential issue behind phenomenon and how to design innovatively aiming at a certain problem, a process of product innovation and evaluation integrated by the theory of constraint and TRIZ innovation method was proposed. The process contains three parts. Firstly, through analysis of product functions, its current reality tree (CRT) and contradiction resolution diagram (CRD) was established to excavate the underlying causes of undesirable effects (UDEs). Secondly, one or more innovative solutions can be got by using TRIZ tools to solve the conflicts generated from the analysis of CRT and CRD. Thirdly, the evaluation model based on triangle fuzzy numbers hierarchical analysis was constructed to evaluate those innovative solutions and choose an optimal solution. Finally, an example was also given to show the effectiveness of the process.

Abstract: Nonlinear FEM (ADINA) is used for the mechanical analysis of reinforced retaining Wall. In this analysis,3-D nonlinear FEM model is built in consideration of the cooperation and interaction among backfill soil, panel and reinforcement strip; the backfill soil is simulated by nonlinear static and dynamic elastic-plastic model; the reinforcement is simulated by the dual-phase enhanced linear elastic-plastic model which can describe the intensified features of the reinforcement; the interaction of soil and retaining structures is simulated by the friction-element. The application to a project yields the distribution law of the strip’s most dollar point of force and the changing rules of the strip’s pulling force around earthquake.

Abstract: In a discrete assembly system, setting its optimal production status is one of the key works in assembly line balancing. Based on analyzing the objectives of assembly line control, a general flow for setting the optimal production status is proposed, and a method to identify rapidly the setting objects of production status is introduced. Then an optimal configuration solution for production status and its solving method in a station of an assembly line are established based on the genetic algorithm. At last, a wing assembly line is set as an example to validate this method, and the result shows that this method can provide a solution to optimize production status parameters for each station in this assembly line, which can reduce the resource idle time and cost, and so its resource utilization rate is improved.

Abstract: Children scooter safety performance is not good enough in the market, the cause of the majority of injuries to children is difficult to control the speed or emergency braking. According to the phenomenon, this paper focuses on designing dynamic scooter brake device for 8-10 child, we conceive that the brake device is given the force of the rolling friction and the sliding friction, so it can play a dual brake effect. It will enhance the security and stability of children dynamic scooter.

Abstract: In recent years, emotionalized design has become a hot topic in the field of industrial design. However, as one major part of emotionalized design, interesting design has not been researched into individually. On the basis of ensuring the function of products, interesting design of products puts emotion onto the product, and the product can express a special sort of emotion. Therefore, the emotion of the product user is motivated virtually, and the product user will accept and love the product. This paper have researched the issue of “interest”, and discussed the potential rule and possible extension in the interesting design of product from another viewpoint.