Research on innovative design of Mamianqun pleating process based on FAHP-QFD-TRIZ theory

The concept of biomimicry is to bring innovative ideas from nature to find new solutions for technology development or product design. However, there are few studies on proposing a method that connects nature's solutions to technology development in a systematic manner. Since previous studies assume that nature is fundamentally different from technologies, biological approaches should be separated from a technological TRIZ to solve technological problems. This research aims at proposing a systematic process to construct a biomimicry‐based TRIZ contradiction matrix that can be utilized to devise innovative ideas for new technology development by solving a contradictory problem based on biological solutions. To build a contradiction matrix that reflects both technological and biological views, inventive principles in biomimicry fields are extracted by text mining and matched in a cell of an existing TRIZ contradiction matrix by latent dirichlet allocation (LDA). In addition, a biomimicry‐based technology development process is suggested by using 40 inventive principles, 39 engineering parameters of the TRIZ contradiction matrix, and biomimicry cases. The proposed approach can be used as a tool to assist practitioners in solving technological problems and developing new technology by considering biological solutions as well as technological solutions.

A novel algorithm for design concept generation using TRIZ inventive principles for resolving multi-parameter contradiction is described in the paper. The LCM algorithm inverts TRIZ contradiction matrix from parameter versus contradiction versus inventive principles form to solution versus parameter versus contradiction form followed by its bifurcation into two complementary matrices. The concept generation using the complementary matrices has been demonstrated for three case studies—the recursive evolution of inventive principles of algorithm by solving its own TRIZ contradiction matrix; high-performance diesel engine; and development of shrink fit and autofrettage concept for very high-pressure vessel. The first case study validates the algorithm. The recursive evolution leads an algorithm to give non-trivial solution due to positive definiteness as stated by theorem of recursive evolution. The algorithm leads to focussed heuristics and problem-oriented prioritisation of parameters by the bifurcation of solution set into basic inventive solution set and novel solution set. Scientific effect that can potentially constrain the applicability of contradiction resolution is reported. The work includes the updated contradiction matrix (Jou et al. in Adv Mater Sci Eng, 2013. https://doi.org/10.1155/2013/830891 ; Mann and Dewulf in TRIZ J, 2003).

This paper aims to construct a product form evolution design method integrating the TRIZ contradiction matrix, which is used to eliminate the contradiction between users’ psychological expectations and product engineering requirements, thus simplifying the product form evolution process. We first obtain the psychological needs of users during the whole process of using the product through behavior analysis and then perform an ergonomic simulation of the product to obtain the engineering properties of the product. On this basis, we construct the TRIZ contradiction matrix and solve the contradiction matrix according to the TRIZ theory method. In this way, the ergonomic engineering design attributes of products and the psychological needs of users can be relatively independent, so that the conflict between the ergonomic functional attributes and the psychological needs of users in the design matrix can be effectively transformed into a general TRIZ problem to provide intuitive guidance for product form design. In addition, a detailed design case is provided, which shows that this method can simplify the difficulty and complexity of product form design, and users are more inclined to use the optimized product.

TRIZ contradiction matrix was built after years of study on patent information. Designers using TRIZ contradiction matrix have to identify the improving and worsening features of their design problems and determine the inventive principles to solve their design problems. It is common to identify multiple improving and worsening features and with some features more important than the others. With the updated 2003 and 2010 TRIZ contradiction matrix introduced, more features have been added and hence, there is a need for a software tool based on these TRIZ matrices. This paper presents an engineering design support tool based on TRIZ that allows considerations for multiple improving and worsening features and allows designers to prioritise these features using weights to solve their design problems as well as the option to choose the version of TRIZ they prefer.

This paper is aimed at solving the problem in the data acquisition process of WSN network, such as energy problem, the correlated problem of data acquisition and the dynamic problem of network topology. An efficient data collection solution based on TRIZ contradiction matrix and innovation principle is presented in the paper. Firstly, the contradiction matrix is used to obtain the corresponding principle, and then the appropriate and feasible principles are selected and applied, taking into account a variety of main factors. Secondly, considering the energy and correlation of nodes as well as the capacity, we get a feedback and correct the node weight according to the principle of separation and feedback based on LEACH algorithm. Finally, we establish the optimized model to collect data efficiently. The simulation and experiments prove that the optimized model can effectively reduce the consumption of the energy and prolong the lifetime of the network.

In this research, a specific category of construction technologies, e.g., formwork, is selected for case study. 40 invention principles and 39 engineering parameters were applied with contradiction matrix to find out the improving and deteriorating parameters for a design case. By consulting the contradiction matrix, innovative principles can be found. It is concluded that TRIZ provides an effective approach for improvement of construction problem solving in terms of time and cost. Moreover, the principles identified by TRIZ also assist the construction technology researchers in searching direction for technology advancement. Forty innovative principles of TRIZ are used in this article to analyze the patents of formwork engineering in the construction industry in Taiwan and to investigate current innovative trend, besides, contradiction matrix is used to investigate the innovative concept of operability and automation demand of formwork. Keywords: TRIZ, 40 Principles, Construction innovation, Formwork 1. MOTIVATION Construction industry is a labor-, technology-, variance-, and complication-intensive industry. There are patents of new material and construction method generated continuously to improve the cost and quality. Generally, the newly created concepts or ideas are sudden ideas. Usually a new invention is neither practical nor systematic enough to consider all aspects of a thing. As a result, the original thought of a new invention is difficult to be realized. It is desirable to develop systematic approach for patent analysis to expedite the invention of new material and construction method for the construction industry. Therefore, this article presents the result of a research applying the forty inventive principles of TRIZ (Theory of Inventive of Problem Solving) to analyze the patented formwork technologies in Taiwan. By analyzing the evolution trends of formwork patents with TRIZ principles, one can easily generate new ideas for invention. Finally, the contradiction matrix of TRIZ is used to provide innovative concept for future advancement of formwork in construction industry based on innovative development of operability and automation.

This study investigates the innovative design of a bicycle saddle by incorporating sustainable ergonomics, universal design principles, and systematic innovation methods. Initially, the literature related to bicycle saddle design and its impact on the human body during riding was analyzed. The TRIZ contradiction matrix was then used to identify relevant invention principles, which served as references for the innovative design of the bicycle saddle. Biomechanics and the human–machine system analysis within human factors engineering were applied to ensure the innovative design is ergonomic and user-friendly. The design features a horizontally expandable and foldable bicycle saddle, enhancing its adaptability and sustainability. Universal design principles were applied to make the innovative design more accessible to the general public, and the prototype was simulated using Inventor drawing software. The research results include: (1) An innovative bicycle saddle design with horizontal expansion and folding functions is proposed. This design divides the saddle into three components, enabling the left and right parts to expand or retract based on user preferences. (2) A bicycle backrest design featuring vertical adjustability is introduced. It incorporates a quick-release adjustment mechanism at the junction of the backrest and saddle, allowing users to freely adjust the backrest height. (3) A quick-operation bicycle saddle design is presented, utilizing quick-release screws to facilitate the swift operation of the horizontal expansion and folding mechanisms. This validation method confirmed that the innovative design meets both sustainable ergonomic standards and user expectations. The systematic innovation approach used in this study can serve as a valuable reference for future research and design applications.

A Contradiction Matrix of TRIZ that classifies problems to solve as contradictions of features is an effective framework of knowledge management for problem solving. The features, however, may have a problem of completeness because they may not cover contradictions about all physical phenomena. In addition, rigidly structured Contradiction Matrix may have a problem of searchability because a relevant contradiction may not be properly searched if a recorder and a retriever describe it differently. To solve these problems, this paper proposes a semistructured contradiction matrix using not TRIZ features but physical quantities in SI unit. To enable not only exact match but also partial match in searching for relevant contradictions, dimensional similarity and qualitative value similarity of physical quantity and similarity between contradictions are defined. The proposed method is implemented as software in Python and contradictions are described in XML and stored in a semistructured matrix. From the result of similarity calculation between stored contradictions, possible effectiveness of the proposed method is confirmed.

Adaptation of TRIZ contradiction matrix for solving problems in process engineering

It is widely acknowledged that pursuing solely convenience causes such problems as excluding users, spoiling users ability, and so on. Inconvenient systems and methods provide users with such benefits as enhancing awareness and allowing creative contribution. However, the systematic way for implementing such benefits is now unknown. Focusing on the contradiction between convenience and such benefits, this paper introduces the contradiction matrix that is a method of TRIZ for inventive problem solving. By analyzing many inconvenient tools and methods, some principles, which relate inconvenience and their benefits, are derived and are placed in what we call fuben-eki (FUrther BENEfit of a Kind of Inconvenience) matrix. This paper demonstrates the way for utilizing the matrix, just like the contradiction matrix of TRIZ, for supporting idea generation of implementing benefits of inconvenience.

Most of the research on the concept of “ageing‐in‐place” has focused on surveys of the needs of senior citizens and/or the quality of the services delivered to them. Service innovation for ageing‐in‐place has received little research attention, however. The present study addresses this issue by proposing a service innovation model for ageing‐in‐place. In this model, a TRIZ methodology is used to develop the parameter correspondence table, which integrates TRIZ contradiction parameters and ageing‐in‐place service‐quality determinants, to deal with service contradiction. A TRIZ contradiction matrix is then applied to generate inventive solutions for the innovation of the ageing‐in‐place service system. A case study is also conducted to demonstrate the applicability of the proposed model.

In the Object-Oriented software design (OOD), design of the class and object, definition of the classes’ interface and inheritance levels and determination of dependent relations have a serious impact on the reusability and flexibility of the system. According to the concrete problems of design, how to select the right solution from the hundreds of the design schemas which has become the focus of attention of designers. After analyzing lots of software design schemas in practice and Object-Oriented design patterns, this paper constructs the dependence matrix of Object-Oriented software design filed, referring to contradiction matrix of TRIZ (Theory of Inventive Problem Solving) proposed by the former Soviet Union innovation master Altshuller. As the practice indicates, it provides a intuitive, common and standardized method for designers to choose the right design schema. Make research and communication more effectively, and also improve the software development efficiency and software quality.

Purpose – The purpose of this paper is to propose an innovative solution for prioritizing “Whats” and “Hows” and resolving contradictions among “Whats” in House of Quality (HoQ). Design/methodology/approach – Prioritization of the influence of the weights in correlation matrices of “Whats” and “Hows” (i.e. top roof and side roof) of HoQ and integration with TRIZ contradiction matrix have been studied. Explained through a case example of banking services, initially, contradictions among requirements of 180 customers have been identified by side roof matrix and then, the 12 by 12 non-technical contradictions matrix of service TRIZ have been used to suggest principles for resolving contradictions. Findings – Findings imply that the use of roof and side roof weights can influence the priorities of “Whats” and “Hows.” Research limitations/implications – Findings may assist researchers and practitioners in resolving ambiguity of the voice of customers, which in turn make the results of HoQ more accurate. Originality/value – A new approach has been proposed in this paper for resolving contradictions of customer requirements by service TRIZ and adjusting priorities of “Whats” and “Hows” in HoQ.

Our aim is to propose a decision making approach to help the designer select the inventive principles from the principle set recommended by the TRIZ contradiction matrix. Both citing frequency and authority’s’ advice are considered. Entropy is introduced to help create the decision making criterion which is influenced by the citing frequency of inventive principles, and synthetical criterion is constructed considered both the importance weight of authoritys’ advice and citing frequency. The flow-progress of decision-making is given. Finally, a case study is used to show the validity of the proposal approach.

SMT is an assembly technology for core circuit board parts. Unless process parameters are effectively controlled, poor solderability may result in a decline in product quality. This study looks at an SMT manufacturing process in a multinational company. First, the TRIZ contradiction matrix is revised to investigate the association between the 39 parameters in the contradiction matrix and 13 parameters that influence the unevenness of solder paste in the solder paste printing process. Expert verification is then used to screen the key factors affecting the quality of SMT, which are then combined with Taguchi's method to identify the optimal parameter set influencing the thickness of SMT solder paste.Results. TRIZ identifies squeegee pressure, ejection speed, squeegee speed, and squeegee angle as the four parameters with the greatest influence on SMT solder paste thickness. Taguchi's method is used to identify the optimum levels set for the experimental factors and carry out confirmation experiments. TheS/Nratio improved from 21.732 db to 26.632 db, while the mean also improved from the current 0.163 mm to 0.155 mm, close to the target value of 0.15 mm. The results show that applying TRIZ and Taguchi's method for the purpose of product improvement is feasible.