Papers by Keyword: TRIZ

Abstract: This study introduces a novel approach to cable gland design through the utilization of TRIZ tools. A cable gland serves two primary functions: retaining and sealing cables within an enclosure, while also offering secondary features such as earthing and cable protection. The number of components in a gland type is determined by functional requirements. Given its classification as a low-cost, high-volume product, the competitive edge lies in achieving reduced selling costs and simplified installation. Addressing key challenges, which include a high component count (currently nine) and a cumbersome installation process, forms the core focus of this work. The research outlines the TRIZ-guided process and methodology employed to devise inventive solutions to these issues, resulting in a component reduction from nine to four. Moreover, the study encompasses the incorporation of various constraints in the development of efficient cable gland designs, yielding several innovative concepts. The paper also introduces proposed system designs and architectures, established based on TRIZ-derived inventive principles, paving the way for subsequent system prototype development. The work underscores the accelerated problem identification and solution generation facilitated by TRIZ tools. The evolving concept is presently situated within the feasibility and design phase, effectively addressing both primary and secondary challenges through TRIZ methodologies. Keywords: Inventive Problem solving, TRIZ, Engineering Problem, Cabled land, Trimming

Abstract: Compression resin transfer molding using inflatable seals is a new variant of LCM (“Liquid composite molding”) processes, which uses the inflatable seals to compress the fiber reinforcements and drive the resin to impregnate the fabric preform, resulting to fill the entire mold cavity. During resin injection, the preform is relaxed. Consequently, the resin enters easily and quickly into the mold cavity. After, the necessary resin is injected into the mold cavity, the compression stage takes place, in a stepwise manner, by swelling the inflatable seals. The objective of this paper is to present this new process and study the effect of the number of inflatable seals on the filling time.

Abstract: Relaxation-compression resin transfer molding under magnetic field is a new variant of VARTM (“vacuum assisted resin transfer molding”) process, which uses a flexible magnetic membrane controlled by a magnetic force, in order to govern the relaxation and compression phases by changing the permeability of the fabric preform. Thus permits to the resin to enter easily into the mold and to increase the resin impregnation velocity and the fiber volume fraction. This innovation is based on the application of the TRIZ theory (“the theory of inventive problem solving”), which allows us to answer to the shortcomings and the conflict links exist inside the VARTM processes. The objective of this paper is to present this new process and to study the effect of the current intensity and the separated gap between the flexible magnetic membrane and solenoid on the permeability of the preform.

Abstract: The 21700 battery is a standard battery used by Tesla vehicles in the United States. It has the advantages of high energy density ratio, high output, low cost and high safety factor. The demand for 21700 battery is gradually increasing on the market. In order to meet the needs of new energy vehicles, the 21700 battery uses copper tab as the anode, which can minimize the internal resistance and improve the charge and discharge efficiency. However, the material of the battery case is steel, and the melting point of the steel is 452°C higher than that of copper. It is difficult to solder firmly using the traditional resistance welding process. In this paper, using TRIZ theory, through the causal analysis, technical conflict, material-field, physical conflicts and other tools, the 21700 battery anode resistance welding problem is analyzed in detail, and based on the analysis results to propose solutions: punching out the pitting on the tab forming a projection welding; inserting metal tungsten in the copper welding head; changing the welding pin head from the platform to the curved surface; introducing nitrogen gas. Under the premise of constant material and no increase in cost, the problem of poor welding of the anode and the battery case can be effectively solved.

Abstract: It is an difficult step using technological contradictions definition of Theory of Inventive Problem Resolving (TRIZ). A method for defining technological conflict based on analyzing of conflict relations in Theory of Petri Net was put forward. The technological conflicts were defined by constructing and analyzing Petri Net model of product. It is a technological support to resolve conflict using TRIZ. Such a series of methods and procedures had been used in the Technical-Conflict determination and solution of Ultraviolet Cooking Oil Smoke Purifier, with a better result obtained. It is proved the validity of Theory of Petri Net for product innovation design.

Abstract: This paper presents a new methodology entitled AVTRIZ by its author, which allows technical, economic and managerial innovation based on the forecasting approach, while operating inside various systems. As the foundation of the new methodology, a classical method was chosen, well-known and widely applied that is the Method of Value Analysis and Engineering, a domain where the author has previous concerns. Starting from the fact that this method is deficient in terms of generating improvement solutions, the author searched and identified a method of current interest and global opportunity that is the TRIZ method [1], which is a method of wide debate, very controversial in terms of its adaptability from the technical to the business and management domains. On the other hand, TRIZ is deficient in terms of checking the solutions, a fact which can be successfully compensated by the Value Analysis Engineering method. Based on the above-mentioned approach, the research activities carried out by the author have brought in a new methodology, which is structured on 3 steps, 8 stages and 30 phases, based on the method of Value Analysis and Engineering, while also applying the TRIZ method.

Abstract: Patent is a key knowledge base for product innovation design. The current patent knowledge model and retrieving pattern can not supporting technology innovation sufficiently. TRIZ is a kind of innovation methodology based on patent analysis and there is a congenital relationship between them. Innovation design oriented patent model is researched based on inventive principles, standard solutions, effect and other TRIZ tools. As a Computer Aided Innovation system, Innovation Engine is introduced and developed. The effectiveness is proved by the conceptual design of Cotton Picker. The patent knowledge of cross domain is used successfully by Innovation Engine.

Abstract: TRIZ has been well-established and is widely applied in multi-national enterprises to enhance design innovation and problem solving for design and manufacturing problems. Most applications of TRIZ utilise the engineering contradiction tools to solve design and manufacturing problems. This paper initially applied the engineering contradiction matrix to solve a semi-processed material transfer misalignment problem while passing through a furnace via a long mesh metal conveyor belt in the productions of automotive parts. Then, using another TRIZ tool, substance-field analysis to verify the solutions obtained earlier. This verification is to reduce the possible of errors in solving problems using the engineering contradiction matrix.

Abstract: Spoilers are part of an automotive exterior bodywork system that acts to create additional down force for higher traction. In this paper, a new conceptual design of automotive spoiler component using kenaf polymer composites was developed using integrated TRIZ and morphology chart design method. The aim is to enable direct application of kenaf polymer composites to the spoiler design to achieve better environmental performance of the component while maintaining the required structural strength for safe and functional operation. The overall process involved two major stages, which are the idea generation and concept development. TRIZ method was applied in the idea generation stage where specific solution strategies for the design were created. In the concept development stage, the specific TRIZ solution strategies obtained were later refined into relevant alternative system elements using Morphology chart method. Finally, a new conceptual design of an automotive spoiler was developed using the combination of the identified system elements. The integrated TRIZ and morphology chart method were found to be new tools that can be used effectively in the concept design stage, especially in cases where direct material substitution is given the main focus for the new product development.

Abstract: Air filter is the important part of air condition systems for the high-speed railways, which has an immediate impact on the air quality. Mould is used for the formation of air filter with the corresponding surface shape. The problem appeared with breakage of the steel wire during the formation process by the mould. Field-Substance analysis and 76 standard solutions are used to describe the problem and generate the solution. The validity of the innovation design is proved with the implementation during the manufacturing practice.