Product Innovation Design in Manufacturing Enterprise by Using TRIZ Software System

Transcription

1 Product Innovation Design in Manufacturing Enterprise by Using TRIZ Software System Ying Feng * Guangzhou College of South China University of Technology, Guangzhou , China *Corresponding author( fengying@gcu.edu.cn) Abstract Product innovation implies the need for more interdisciplinary knowledge structure, more sophisticated technical support and a more comprehensive innovation theory. This paper analyzes the product innovation design in manufacturing enterprise by using TRIZ software system. By using TRIZ theory, we discuss the several key factors in the whole process of product conceptual design, including resource analysis, product forecast, customer research and conceptual design scheme generation. The software system can improve management innovation of product design process, guide the innovation design, and then make it possibility for problem solving. Keywords: TRIZ software, Computer-aided, Innovative design, Engineering design 1. INTRODUCTION With the accelerating of the era of knowledge economy coming and the process of global economic integration, the enterprise is in said the fierce market competition environment, is an inevitable choice for enterprises to take the road of independent innovation, only innovation can enterprises seeking survival, seek development to inject impetus, thus to meet the increasing of product diversification demand and have the ability to respond quickly to changes in the market. For manufacturing enterprises is even more so, manufacturing industry enterprise's competition from basically is the product of competition, in the era of knowledge economy, the development of science and technology in the world will be more rapid, continuously improve the technology content of products, product life cycle will be shorter. Product innovation implies the need for more interdisciplinary knowledge structure, more sophisticated technical support and a more comprehensive innovation theory. The essence of product innovation is to solve the contradiction between the initial state and the ideal state. And engineering and technical personnel to solve the problem of product innovation too often depends on past experience, emphasis on personal knowledge in professional field. It is difficult to overcome psychological inertia and get rid of the thinking of the specific conceptual framework, cannot fully grasp the key problem of product innovation, caused by the deviation of the target product development, it is difficult to achieve product innovation. Computer aided innovation (CAI) technology is to has been rapidly developed in Europe and the United States in recent years, the invention creation methodology research as the foundation, is the source to the invention of the former Soviet Union creation methodology, TRIZ and today's highly developed computer software technology combined with the product. It can be in the product concept design, program design and process design stage, according to the market demand, assist Engineering and technical personnel to carry out new product development and product improvement, so as to obtain product innovation scheme design. CAI with the aid of the computer the aggregated human knowledge and experience in software, to analyze solve conflicts encountered in the process of product innovation as the starting point, greatly improve the enterprise product innovation design ability, quality and efficiency, and fundamentally opens up a product innovation the new path. Innovation takes the enterprise as the main body; the enterprise innovation also takes the product as the carrier. And one of the characteristics of product innovation design is the description of the design target is incomplete and uncertain, design thinking is divergent, usually no rules to follow, depending on the designer's experience, inspiration and creative thinking is a multi-stage, and relates to the complex process of knowledge in the field. For new products, a large part of the innovation is in the stage of conceptual design, it is in the whole life cycle of product innovation performance most concentrated, the most prominent stage, embodies the designer's creative thinking, the purpose is to design new products to meet customer demand. The on TRIZ based, discusses the several key factors in the whole process of product conceptual design, including product of resource related analysis, according to the product forecast customer research and product innovation in conceptual design scheme generation. At the same time, the paper to customer demand oriented and customer demand for organically throughout, accomplish have a definite object in view, to ensure that the innovation 1017

2 achievements with market demand, and in a certain extent, shorten the development cycle of new products, improve the effectiveness of innovative products. 2. TRIZ AND PRODUCT INNOVATION DESIGN BASED ON KNOWLEDGE 2.1. Overview of TRIZ theory TRIZ (theory of inventive problem solving) is the prefix of Russian theory of inventive problem solving, after 50 years of development, TRIZ has become powerful method to technical problems or inventive problem solving, application of the methodology has been solved in the former Soviet Union, the United States, Europe, Japan and other many countries tens of thousands of enterprises products and the problem. Since the introduction of China in the end of last century, TRIZ has aroused widespread concern in the academic and government departments in recent years. In 2008, the Ministry of science and Technology launched the TRIZ as the core theory of innovative methods to promote and popularize the work. Anyway, TRIZ theory from the birth, development, maturity to now worldwide popularity, the connotation of the theory is having a profound impact on the people's cognition and mastery of technology system development and changes in the law, provides people with inventions with problems of scientific thinking method and knowledge workers. Figure 1. TRIZ architecture Analysis is an important means to solve the problem: Problem analysis is one of the tools of TRIZ, including conflict analysis, material field analysis, demand function analysis and ARIZ algorithm. Conflict analysis is a powerful tool to look at the problem from a new perspective: In TRIZ's view, a challenging problem can be formulated as a technical conflict or a physical conflict. In the design process, the most commonly used 39 parameters are defined, and the conflict matrix is used to solve the conflict. Physical conflict can be solved by using separation principle. In some cases, technical conflicts can be translated into physical conflicts. Conflict analysis is the basic step of the 40 innovative principles of the application of knowledge tools; Field analysis is a kind of TRIZ analysis tool: it can be used to establish the functional model of the problems associated with the existing or new technology system. Each system is built with a certain function. Generally speaking, the function represents the behavior of a certain object, which is done by another object. This state can be used to create a triangle model, the angle of the triangle to represent the object and behavior or interaction (called the field). The substance may be an object or a tool, and the field may be present in the form of energy. Normally, any system with a certain function can be modeled with a complete triangle, as shown in Figure 2-3. Any loss of the complete field model, such as missing components or non effective and harmful functions, indicates that the current system is a problem; Requirements function analysis: it involves the target of the selected system and matches the function list of the TRIZ effect knowledge base. Demand function analysis is the first step to solve the knowledge base; ARIZ refers to the invention problem solving algorithm, the algorithm is a set of procedures for the re interpretation of a given problem. In TRIZ's opinion, when the conflict is overcome, the technical problem becomes a problem. However, the "real world" problem does not always appear as a form of conflict. Moreover, the analysis of the material field and the demand function cannot be directly applied to the situation. Therefore, 1018

3 it is not obvious that the direct application of TRIZ knowledge tools to help solve the problem. ARIZ is a step by step method to solve the problem, given a non-clear technical problems, its internal conflict is revealed, expressed and resolved Product innovation design based on knowledge For the division of product design stage, although there are different views, in general can be divided into the following stages, as shown in figure 2: Figure 2. Product design process From the above product design process can be seen, product design began in market demand analysis, designers will design requirements Abstract mapping for a set of functions related to the definition, after the implementation of the concept design to achieve its function. According to statistics, the total life cycle cost of products in the product design phase 90% has been decided, while in the conceptual design stage, about 70%-80%. The conceptual design process is a divergent thinking and innovative design process, is a solution to achieve the function, to meet the various technical and economic indicators, there may be a variety of programs and ultimately determine the optimum synthesis process. At the stage of product conceptual design, the concept design phase is the most important stage of the creative design and the realization of the design of product innovation, because it has less constraints and great innovation space. According to the invention level, the classification of solutions in engineering field is a convenient tool and brings a lot of practical use. Moreover, this classification method is the basis of innovative design methodology. G.S.Altshuller for the first time will be the invention of the solution is divided into five levels of invention: 1) The Standard Solution: Standard solution through typical trade-off, the solution obtained quantitative change no new quality. Annotation can usually choose from some obvious reference solution, mainly based on personal professional knowledge. Altshuller studied 14 different types of patent found that 32% of patents to solve scheme belongs to level 1. 2) Change of a System: In a qualitative way to improve the material, but this change is not very significant, reference solution is selected the number of divisors ten, only need to use an industry knowledge to be addressed, roughly 45% of the patent solution belongs to level 2. 3) Solution across Industries: Matter is completely changed, it is required to choose from hundreds of reference solutions, and to take advantage of the knowledge outside the specific industrial field. About 19% of the solutions are level third. 4) Solution across Sciences: Create new material, need from thousands to tens of thousands of reference solution to choose, generally need to refer to the new scientific knowledge and not the use of technical information. About 4% of the solutions are level fourth. 5) Discovery: Solutions based on scientific discovery, need to be in the hundreds of thousands to hundreds of millions of possible reference solutions to be selected, with the use of a new discovery. From the process of product design analysis and TRIZ division of the grade of the invention can draw the following conclusions: in the process of product design innovation the most creative phase is the conceptual design phase, and the core of conceptual design process is to achieve the mapping between the design requirements function principle structure, product concepts from fuzzy to clear, the abstract to the concrete. The main content of conceptual design is the function design and the principle design. A product designer at this stage to solve the main problem is to achieve the principle of product functions and programs. At the same time, the design of personal knowledge structure features often with strong industry and professional characteristics, to meet the product design stage of the detailed design stage of the requirements of the design personnel knowledge. To better support the concept of the design phase of the functional design and design, to obtain a truly innovative innovation, it is necessary to use the multi industry, multi scientific field of integrated 1019

4 knowledge. As a result, multidisciplinary domain knowledge plays a very important role in the process of implementing product innovation design. 3. COMPUTER AIDED PRODUCT INNOVATION DESIGN BASED ON TRIZ 3.1. Software system architecture The computer aided product innovation design system developed in this paper is aimed at improving the ability of product designers to analyze problems and solve problems. The process is by means of computer aided product innovative design platform, combined with TRIZ theory analysis tools to quickly recognize the root of problem, select the appropriate modeling tools and knowledge tools to obtain the general solution, and with the help of analogy, association of ideas and solutions to specific problems solution, improve the innovation ability of designers, to break the barrier of innovation process in the presence of psychological inertia and limited knowledge, help designers eliminate psychological inertia, expand the field of limited knowledge, correct definition of the problem, and produce innovative solutions. However, the auxiliary product innovation design tools can not completely replace the human thinking activities, but the people think about the problem, solve the problem of scientific process, and to provide the correct direction for the creative solution to the problem. System users first login system, login system can have two kinds of identity, respectively, the general user and administrator user. The administrator user is more than the ordinary users, with the user information management and knowledge base management. For ordinary users, after the successful login system, the design staff to enter the software system problem definition and analysis module. Input basic information, combined with TRIZ ideal solution analysis, through heuristic helps designers to analyze the root of current problems, depending on the current design problems, different modeling tools and knowledge base tool to solve. Knowledge base, scientific effect knowledge base and engineering design case library in the structure of existing mapping software in the knowledge base of innovation principles, standard solution, in the form of combination of text, pictures and other means of representation, and to better assist the designer to understand, master and apply knowledge innovation to solve the problems in the design of product conceptual design stage. Finally, the project of storage and report generation, storage project file to save the current project definition, analysis, solving process and the scheme obtained from all the data and information, to facilitate the designer view, re defining and solving After saving the project, the user can re open the project, the original analysis and solution process, the solution of information and income of the solution will be read into the software system, the user can again carries on the problem definition, analysis, solution or modify, and save again and generate reports. The administrator user, except for the operation, the administrator can manage user database of user information and knowledge in the knowledge base of add, modify, delete, and define the relations between knowledge of the knowledge base, such as scientific effect knowledge base add new scientific effect, for the engineering design case mapping to the corresponding scientific effect System function module After describing and clarifying the problems to be solved, the analytical tools in TRIZ can be used to find out the root of the problem and determine what kind of innovative techniques and knowledge tools in the software to solve the problem. In this system, we combine the ideal solution analysis method of TR1Z theory to analyze the problem, overcome the inertia of thinking, and preliminarily determine and select the corresponding innovative techniques and knowledge tools. TRIZ theory pointed out that the technical system is concerned, it is important not to the system itself, but rather how to achieve more scientific functions, and thus highlights the ideal final result (IFR) concept. Combined with the ideal solution to determine the steps, the system designers to answer the following eight questions can be preliminary analysis of design issues, determine the available resources, preliminary selection of innovative techniques and knowledge tools, and even the innovation program: Question 1: What is the ultimate purpose of the design? Question 2: What is the ideal solution? Question 3: What are the barriers to the ideal solution? Question 4: What are the results of this disorder? Question 5: What conditions do not appear to be the condition of the existence of the available resources to create these conditions? Question 6: What are the useful functions and harmful functions of the current technology system or products? Question 7: Is the current technical system or product in question can be described by technical conflict or physical conflict? 1020

5 Question 8: Can use the new principle and new technology to realize the function of the current technology system or product? TRIZ ideal solution is a powerful tool, which plays an important role in the process of innovative design. For many design examples, the correct description of the ideal solution can directly obtain the solution of the problem; the reason is that the ideal solution which has nothing to do with the technology enables the designer to solve the problem. Knowledge base is the support of computer aided product innovation design software and help designers to break through the limited knowledge, provide more realization of disciplinary domain knowledge. In this paper, the software system of the innovation design knowledge base system including knowledge base of innovation principles, standard solutions knowledge base, scientific effect knowledge base and engineering design case base, knowledge base management module in addition to add, modify, delete knowledge operation, still need to build the mapping relationship between knowledge. Such as the effect of the knowledge base to add knowledge, engineering design case library to add case, the establishment of scientific effect and the case of the association. 4. PRODUCT INNOVATION DESIGN SYSTEM Figure 3. TRIZ software design 4.1. Software system Visual C++6.0 Studio Visual is the most powerful and most powerful tool for the development of code efficiency. Compared with the previous version, Visual C++6.0 has been improved in many aspects. The compiler, debugger, connectors, editor, resource editor has been strengthened, in the editor also provides the function of generating automatic statement, the editor would like Visual Basic - like automatic prompting function parameters, object members. Users can use Visual C++6.0 to write Win32 applications in two ways, one way is based on the API C Windows programming, and the other is based on the C++ MFC programming. C programming is a programming method of traditional, tried and tested, higher code efficiency, but the workload of the difficulty of development and development. C++ programming code efficiency is relatively low, but the development of small difficulty, making small workload, high efficiency of source code. MFC package a fairly complete Win32 SDK in the structure, function, it is the programmer provides an application framework, the application framework can be for programming to complete a lot of windows programming in the routine work, such as management window, menu and dialog box, the implementation of the basic input and output, using the collection class to store the data objects and so on. In this paper, the development of the computer aided product innovation design system of knowledge base system is the core support, including knowledge base of innovation principles, standard solutions knowledge base, function of scientific effect knowledge base and engineering design case library. Therefore, what technology to store these data and conveniently realize retrieve, modify, such as operation be solved firstly in the software development process. 1021

6 Figure 4. TRIZ software systems 4.2. Automotive products innovation The development of the modern automobile has entered a full range of breakthrough and humanization stage by the pure technology promotion stage. Automotive product innovation is also increasingly open, mainly in the automotive concept, car styling, automotive features, automotive structure, vehicle materials, energy and other aspects of the car. And engine and consists of ignition system, crank connecting rod mechanism, gasoline engine, chassis by the automobile transmission system, automobile driving system, car steering system and braking system etc. composition, the body is composed of a vehicle body, doors and windows, ancillary equipment, safety protection device, container. In this paper, the door as a small passenger car in the composition of simple products, the door includes a door outer panel, the inner door plate, a reinforcing plate, window frame, door lock, hinge and limiter components. All resources available for the door, as shown in table 1. Table 1. Related resources the doors Outer door panel and the door inner plate, a reinforcing plate, window frames, material resources car door locks, hinges, stopper, glass, a handle, a control button, air outlet, seals, both inside and outside decoration Time resource When the car is running at a high speed, the car is moving at a slow speed. Energy resources Manpower, electric power, gravity field space resources Inside and outside the car in different directions, the level of space information resources Assembly information and function effect of door Open and close, to protect the safety of passengers, to facilitate the installation Functional resource of windows, placing debris Table 2. Customer survey results Customer needs Excitement Expect Neutral Opposition weight Add additional features 30% 2% 40% 5% 1.55 Hinge movable 50% 25% 25% 0% 2.1 Remove door limit device 20% 15% 60% 5% 0.9 Electric control type vehicle door lock 50% 10% 35% 5% 1.8 Exquisite appearance 20% 35% 45% 0% 1.7 Changing inner plate geometry 10% 20% 50% 10% 0.7 Hardness stronger board 20% 30% 40% 10% 1.6 By using this method, we obtained the structure of the door, the function of the door and parts function, the door of all available resources. Here, some parts of the relevant parameters of the object, the future of its possible state to make predictions, a new generation of the concept of the door. Based on the results of the future prediction of the product, the KANO model is based on the two dimensional evaluation forms, and a customer 1022

7 survey questionnaire with certain forward-looking, scientific and targeted is made. 5. CONCLUSION Computer aided design system for product innovation is the scientific methodology in invention and creation, is constructed based on the TRIZ theory, is to use a computer powerful information processing and storage capabilities and assist designers in the process of the product conceptual design of innovative design. The subject of innovation is still the design staff, product design solutions cannot be automatically generated by the computer software, the program still needs to be designed to combine the specific conditions and domain knowledge. The software system can improve personnel management innovation of product design process, guide the innovation design personnel more scientific thinking, provide in the field of multidisciplinary knowledge, then make it possibility for increasing to innovative design problem solving. Using the software system integrates TRIZ theory in the main analysis tools and knowledge tools and support product conceptual design problem is defined in a certain extent, analysis, the whole process of solving the report generation is a relatively complete computer aided product innovation design system; focuses on the TRIZ theory in standard solutions and scientific effect knowledge in product innovation design in the application process, the standard solution in detail on the induction and the summary, the standard solution of the more operability. Acknowledgement This research was financially supported by Higher Education in Guangdong Province "Innovation Strong School Project" to enhance the capability of independent innovation of class-funded projects (2014GXJK162). References Asim, S., Daniel, S. (2012). Application Design For Wearable and Context-Aware Computer. Pervasive Computing, IEEE, 20 (4), Becker, F. (2002). Configurable Systems-on-Chip: Commercial and Academic Approaches.9th International Conference on Electronics, Circuits and Systems, 2(2), Fang, M., Chen, Z. (2014). User defined logic in SOPC design. Computer engineering, 30(17), Lysaght, P., Blodget, J. (2006). Enhanced Architectures, Design Methodologies and CAD Tools for Dynamic Reconfiguration of Xilinx FPGAs. International Conference on Field Programmable Logic and Applications, 1-6. Sá, F., & Rocha, Á. (2012). Definição da arquitetura de informação em organismo da administração pública local. RISTI-Revista Ibérica de Sistemas e Tecnologias de Informação, (10), Zhu, M., Wen, Y. (2014). Research on FPGA dynamic reconfigurable digital circuit fault tolerant system. Journal of Southeast University, 30 (4), R.Khansa, (2012). Teachers Perceptions toward School Counselors in Selected Private Schools in Lebanon,Procedia - Social and Behavioral Sciences, 185, D.Jutla and P.Bodorik, (1999). Developing internet e-commerce benchmarks,information Systems, 24, Z. J. Liao, (2013). Empirical study on relationship between R&D input, technological innovation capability and economic performance of enterprises, Technology Economics, 31, C.Krstev, and A.Trtovac, (2013). Teaching Multimedia Documents to LIS Students,The Journal of Academic Librarianship, 40,