Study on Logistics-Oriented Product Innovative Design

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In order to improve the logistic characteristics of products, a process of product innovative design for logistics is presented which is combined with the idea of product design for logistics and innovative design theory. Some innovative design approaches i.e. TRIZ, QFD, knowledge-based innovative design, are introduced. Based upon product design criteria for logistics and QFD (Quality Function Deployment), the conflicts between product performance and logistic characteristics are discussed and determined. TRIZ (Theory of Inventive Problem Solving) is employed to solve the conflicts, with the conflict matrix and inventive principles. According to the product logistic characteristics, the general TRIZ engineering parameters are simplified to facilitate the application. Further more, the analysis of logistic design conflicts is introduced. A case study has been done to illustrate the method proposed in this paper.

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Based on the balances of energy and mass, a modeling method taking the intelligent control of the greenhouse environment into account is proposed, the physical processes of energy and mass exchanges resulted from radiation, ventilation, convection and crop transpiration in greenhouse microclimate were analyzed, and the control models of temperature and humidity were studied according to the character of the greenhouse in China. By using the root mean squares error (RMSE) algorithm, the error between the simulated value and the measured one were simulated and analyzed. The results indicated that the dynamic model could provide reliable estimation of both temperature and humidity in a greenhouse.
The theory of inventive problem solving(TRIZ) is hard to choose better solutions, and the systematic approach has a little randomicity on the generation phase of creative solutions. A new idea was presented by using the method of selecting solution variants in systematic approach on dealing with solution sets of TRIZ, and an integrative innovation design process model was proposed. Then TRIZ and systematic approach can complement each other. From the system viewpoint, solutions were obtained faster and easier, and the systematic approach decreased the amount of solution sets of TRIZ in order to make the designing decision accurately and efficiently. The process of solution sets selection on designing fuel gauge was taken as an example. The process has good maneuverability and flexibility of methods and tools, and considers the systematicness for following phases of designing process etc.
There is a standard process to solve a domain problem using the theory of inventive problem solving (TRIZ). TRIZ solutions, such as principles and cases to solve conflicts, are integrated from long history. The TRIZ solutions and cases were used as source designs and the standard process was modified to an analogy process which was named the first analogy process. The second analogy process was formed in which the specific TRIZ solutions for domain problems from the first analogy process were used as an input situation. By means of integrating the first and the second process, a new process model for analogy-based design process was formed, which was a process model for two stage analogy-based conceptual design. There are 9 steps for this model, where the standard TRIZ solution was given and the accumulated knowledge base was applied, as well as the innovation capability of designers was exerted. A design process for a component of a paper machine has been carried out using the proposed model and showed effectiveness of the model.
  • J Zhou
  • H Li