Study On The Tolerance Design For The Cloud Manufacturing Resource

Supported by the National Science Foundation of China "Theory and method for tolerance design based on the parallel decomposition of function-structure"(51275464)and "The effiency optimization for complex hybrid system of manufacturing"(U1501248).The thesis proposes a tolerance design model for cloud manufacturing resource.In chapter 1:The history and latest progress of researches on the computer-aided tolerancing are summarized.The studies of cloud manufacturing resources are discussed.The research backgrounds and significances of the thesis are analyzed.The research contents and general framework are presented.In chapter 2:The manufacturing mode and framework of cloud manufacturing are studied.The process of tolerance design model for cloud manufacturing resource is proposed in this chapter.In chapter 3:A mapping relation model of resource demanders and resource suppliers on cloud manufacturing platform is put forward in this chapter.According to the generalized six-point location principle,a growth design from the function requirement to entities with geometric constraints is proposed.By the function requirement growing up to product,a mapping relation model is used to match the entities with the instances which the resources in the database could supply.In chapter 4:Proposes a multivariate process capability indicator to evaluate the manufacturing process with the reliability of data on the cloud decaying when time passing.According to the fuzzy quality theory,the dominance degree of intuitionistic fuzzy value is taken into account in decision making when selecting the optimal resources chain.In chapter 5:Studies the tolerance design with multiple resource suppliers on cloud manufacturing,in which a two-level game is put forward to reveal the relationship between the products and resource suppliers.The product is modeled as a population in an evolutionary game while the competition of the suppliers is modeled as a non-cooperative game.Then,equilibriums of both evolutionary game and non-cooperative game are proved to exist to solve the multi-objective optimization of tolerance design.In chapter 6:Tolerance design for cloud manufacturing resource system is built on Matlab.Some examples are studied to demonstrate the proposed theory and method.In chapter 7:The research contents and innovations of the thesis are summarized.The future prospects of related topics are discussed.