Maokuan Zheng

A TRIZ-based Trimming method for Patent design around

Patent design around is an effective way to walk around competitive patents and avoid patent infringement. This paper proposes a TRIZ-based Trimming method for Patent design around. The 4 stages of Patent design around include design around target definition, design around problem identification, problem solving, and solution evaluation. In the 4 stages, Technical Features (TF) are identified to define design around target based on patent claim decomposition. In order to avoid literal infringement and doctrine of equivalents, the design around problem identification process of Trimming one or more patent Technical Features is developed. Then, the problem solving tools based on Modern TRIZ tools (such as Physical Contradiction resolution, and Function-Oriented Search) are introduced to solve the design around problem. Two Trimming scenarios of Core Ejector System is investigated to illustrate the method. The project successfully circumvents target patent and generates several new granted patents in China. Establish an integrated TRIZ-based framework for Trimming strategy to design around competitive patent.Present a step by step Trimming Technical Features process to generate Trimming scenarios and Trimming problems for innovation inspiration.Generate two Trimming scenarios for Core Ejector System improvement.

Research on industrial product-service configuration driven by value demands based on ontology modeling

It has become an important trend in the manufacturing industry that service is used to enhance the competitiveness of businesses as well as an important source of values. Aiming to extend the achievements of product configuration in manufacturing industry to service industry, an ontology-based product-service configuration approach is presented in this paper. Firstly, value attributes of product-service are defined based on the analysis of customer demands. And the demand cluster method is proposed to identify value demands of customers. Secondly, the modular system of product-service is established which is the basis of building product-service ontology. Thirdly, the product-service configuration method based on ontology modeling is put forward. Finally, the proposed approach to product-service configuration is demonstrated by an example of configuring service packages of civil aircraft materials.

A framework of product innovative design process based on TRIZ and Patent Circumvention

Product innovative design process is complex and requires innovative methods and knowledge to support. TRIZ (Theory of Inventive Problem Solving) and Patent Circumvention can help to find innovative solutions using patent knowledge. However, so far no method has been proposed to integrate TRIZ and Patent Circumvention effectively. Therefore, this paper proposes an innovative design process based on TRIZ and Patent Circumvention which consists of four stages, including Initiate Problem Description, Problem Identification, Problem-Solving, and Specific Solution. The advantages of the framework include integrating Modern TRIZ tools to identify key problems for innovation, effectively using Patent Circumvention technology to adopt or walk around competitors patent solution. Then, a case study is proposed to test the efficiency of the approach. At the end, recommendations for future research are suggested.

Cross-trained workers scheduling for field service using improved NSGA-II

The proper balancing of geographically distributed task schedules and the associated workforce distributions are critical determinants of productivity in any people-centric production environment. The paper has investigated the cross-trained workers scheduling problem considering the qualified personal allocation and temporally cooperation of engineers simultaneously. A 0–1 programming model is developed and the non-dominated sorting genetic algorithm-II (NSGA-II) is adopted to deal with the NP-hard problem. In order to enforce the NSGA-II, significant improvements are made to function the approach in a more efficient way. It is observed that the improved NSGA-II outperforms the original NSGA-II in the experimental test. The promising outcomes of the formulation in the experiment make its implementation easily customisable and transferable for solving other intricate problems in the context of skilled workforce scheduling. Furthermore, the modified NSGA II can be used as an efficient and effective tool for other multiobjective optimisation problems.

Towards an integrative framework of innovation network for new product development project

Abstract The increasing complexity of product and radical changing environment lead companies towards innovation network (IN) collaboration. Although recent researches highlight the importance and benefits of innovation network (IN) to new product development (NPD), this subject is still developing and it has the potential to expand into new dimensions. However, there is a significant lack in the literature regarding holistic, systematic and integrated framework when it comes to manipulating the challenge of true NPD projects. The current researches mainly focus on the strategy level which provides less application guidance for NPD. Thus, in this work, the authors propose an integrative framework of innovation network for NPD based on the literature review. In addition, a case study of new refrigerator development reveals the feasibility and potentials of the overall framework to its broad usage in industry.

A framework for Industrial Product–Service Systems risk management

With the fast development of service economy, researches and applications of Industrial Product–Service Systems have become popular. Advantages and benefits of Industrial Product–Service Systems are widely discussed, while risks and uncertainties resulting from this transformation tide are rarely investigated. There are strong appeals from the industry for a holistic Industrial Product–Service Systems risk management architecture. Based on a full review on the existing work, an Industrial Product–Service Systems risk management framework integrating multiple methods is proposed trying to provide a possible solution. Structure–process correlation analysis is used for Industrial Product–Service Systems modeling. Risk recognition matrix and graphic risk units integrating with dynamic Bayesian network are developed for risk recognition and modeling. Entropy reduction value–based and effect chains’ visualized analysis offer an efficient approach for key risk and key node recognition. The proposed methods get tested and verified with a case study of risk management for hydraulic system maintenance service in excavator Industrial Product–Service Systems.

An integrated TRIZ approach for technological process and product innovation

Process trimming (also can be called as trimming for process) helps to trim and eliminate process operations by redistributing their functions among other operations. It offers one way to eliminate key disadvantages in product and manufacturing process that other methods do not see. However, few methods have been disclosed in a structured way for process trimming effectively. Therefore, this article proposes an integrated process focused on technological process and product innovation to solve the key problems with process trimming-based TRIZ (theory of inventive problem-solving) approach. This method helps to identify and inventively solve the key problems and maximize use resource of system and supersystem. First, process trimming candidates are identified based on component function model, component trimming rules, process function model analysis, component–process interaction matrix, and root cause analysis. Then, three types of process trimming strategies are presented. Algorithm of process trimming is developed to identify key problems in technological process. TRIZ problem-solving tools are used to solve these key problems. Finally, a case study of refrigerator door foam innovative design and manufacturing process is investigated to test the efficiency of the approach. The innovative solution significantly decreases manufacturing defects and service cost.

Quantification and integration of an improved Kano model into QFD based on multi-population adaptive genetic algorithm

Abstract In an effort to address the inherent deficiencies of traditional Kano model and quality function deployment (QFD), this paper proposes an improved Kano model named as importance-frequency Kano (IF-Kano) model and integrates IF-Kano model into QFD. Considering the interaction between frequencies and importance weights of customer requirements (CRs), the IF-Kano model adopts the logical Kano classification criteria to categorize CRs. Then, both qualitative and quantitative results derived from IF-Kano model are integrated into QFD with a non-linear programming model. The model aims to determine appropriate Kano categories of CRs and target values of engineering characteristics (ECs) with a view to achieving an optimal design solution under the best balance between enterprise satisfaction and customer satisfaction (CS). To solve the presented model, a multi-population adaptive genetic algorithm (MPAGA) is designed. Finally, an example of a home elevator design is given to demonstrate the feasibility and effectiveness of the developed approach and algorithm.

Ontology-based information integration and sharing for collaborative part and tooling development

One critical factor in collaborative part and tooling development is the information integration and sharing. After analyzing characteristics of the collaboration process, the problem of information integration and sharing is transformed into a problem of domain ontology integration and sharing. First, an activity model is presented to describe interactions among domains of part, process, and tooling. Next, three local ontologies are constructed to serve as formal, explicit specifications of domain-specific information. To integrate local ontologies as global ontology, the relations and constrains among domains are explicitly represented using Semantic Web Rule Language. Then, the ontology sharing method via similarity matching is studied. Finally, the proposed approach is demonstrated by a case.

Understanding customer requirements through quantitative analysis of an improved fuzzy Kano’s model:

Customer requirement analysis has become a primary concern for companies who compete in the global market. Kano’s model, as a customer-driven tool, has been widely used for customer requirement analysis in product improvement. Although a number of authors have improved the traditional Kano’s model, there has been a limitation of dealing with the fuzzy and uncertainty of human thought under multi-granularity linguistic environment. Furthermore, the traditional Kano’s model faces problems regarding quantitative data computation and customer requirements importance assessment. In this article, an improved fuzzy Kano’s model is proposed to analyze customer requirements under uncertain environment. A 2-tuple linguistic fuzzy Kano’s questionnaire is developed to model the uncertainty and diversity of customers’ assessments using 2-tuple linguistic variables under multi-granularity linguistic environment. Then, a comprehensive and systematic methodology is presented to prioritize customer requirements through quantitative analysis of improved fuzzy Kano’s model. This method integrates subjective judgments assigned by decision maker, objective weights based on maximizing deviation method and customer satisfaction contribution to determine the priority ratings of customer requirements. A case study of combine harvester development is presented to evaluate the proposed model.