Research On The Theory And Method For Integrated Design Of Product Family And Supply Chain Under Disruption Risks

At present,the international environment is becoming more and more complex.Unstable and uncertain events such as global epidemic and extreme weather have intensified the impact of market demand and supply chain disruption on the manufacturing industry,forcing OEM（Original Equipment Manufacturer）to re-examine supply chain design from the source,that is,in the early design stage of products,considering both product performance and supply chain performance.In addition,in order to meet the diversified and personalized needs of customers,the production mode has shifted from mass production to mass customization.In the mass customization mode,product design methods gradually transition from single product design to product family design.Therefore,this thesis focuses on the theories,models and methods for integrated design of product family and supply chain under disruption risk.The main research contents are as follows.（1）Module design for product and supply chain collaboration（MD-PSC）.Since module design and platform design are two important strategies and implementation approaches for product family design,the current research on the methods of MD-PSC is limited.Therefore,MD-PSC is studied in this thesis.Through the investigation and analysis of modular product design and modular supply chain design,an optimization model for MD-PSC is firstly proposed by introducing modularity index Q and M_G&G.Then,taking the cordless drill as an example,the rationality of the optimization model for MD-PSC is verified by comparing the results under different modularity measures.Finally,a modular architecture with a balance of product architecture performance and supply chain architecture performance is obtained.（2）Platform architecture development for integrating product family and supply chain（PAD-PFSC）.Due to the limitation of single product design method in guiding product family design,an optimization model for PAD-PFSC is firstly established by extending the model of MD-PSC.Then,taking the power tool family as an example,the interaction between commonality and modularity of product family architecture,the interaction between commonality and modularity of supply chain architecture and the interaction between whole performance of product family architecture and supply chain architecture are explored respectively.Finally,A platform architecture planning scheme of integrated product family and supply chain is given to visually display the hierarchical relationship and sharing relationship among product modules and supply modules.（3）Risk-averse co-decision for product family configuration and supplier selection.In order to make up for the insufficient consideration of disruption risks in the existing research on integrated configuration for product family and supply chain,firstly,the risk-neutral co-decision model and the risk-averse co-decision model for product family configuration and supplier selection are built by introducing risk-averse theory and resilience strategy.Then,taking the electronic dictionary as a case,it is confirmed that the risk-averse co-decision can control the potential worst-case loss by comparing the risk-neutral solution and risk-averse solution.At the same time,the sensitivity analysis on the confidence level indicates that controlling market share is help to improve potential worst-case profits.（4）Leader-follower optimization for product family configuration and order allocation under disruption risks.Firstly,combining the problem of supplier selection and order allocation and the problem of co-decision for product family configuration and supplier selection,an optimization model of leader-follower optimization for product family configuration and order allocation under disruption risks is constructed.Then,a bi-level optimization algorithm,namely GA-BAGA,which nested a two-stage method integrated Backtracking Algorithm and Genetic Algorithm in the upper Genetic Algorithm evolution,is developed to solve the leader-follower optimization model.Finally,A case study of AGV forklift clarifies that the bi-level optimization is feasible and effective for the leader-follower optimization model.The results under different strategies and the sensitivity of some key parameters are also analyzed to help designers make rational decisions.（5）Prototype system development for integrated design of product family and supply Chain.Based on the research in the previous chapters,the overall structure of the prototype system is constructed after analyzing of the overall requirements of the system.Combined with design examples,the construction and application of the main functional modules in the prototype system are introduced and verified.At the end of this thesis,the works of this thesis are summarized,and the related research technology is prospected.This thesis has 74 figures,18 tables and 167 references.