Research On The Theory Of Production Capability Flexibility And Its Applying In Production Control Of Small And Medium Enterprise

Along with the development of economical globalization, the production characteristic of small and medium enterprise has been fundamentally changed. The individuality of customer demand and the tendency of marketshift cause the market competition to be more and more intense. Therefore, flexible production gradually becomes the core and the prop of production organization. The research on and its applying in production control has extremely vital significance. According to the characteristic of small and medium enterprise that is organizing production facing customization, as well as an enterprise instance, this dissertation systematically researches the key techniques of the production capability flexibility in small and medium enterprise and their applying in the workshop production control application. The main contents of the dissertation include:1. According to the production characteristic of small and medium enterprise i.e. facing customization, the concept of production capability flexibility in small and medium enterprise is proposed. The connotation, the ability constitution and the performance formalism are researched qualitatively and quantitatively. The three dimension- characteristic and the multi-dimensional level are analyzed. The vector indication, measure index and computational method of production capability flexibility are proposed. The mathematical model is proposed, which can optimize production capability flexibility and obtain maximum benefit of the production system. All those above propose the fundament of measuring and evaluating production capability flexibility.2. Based on the S95 standard, computational method of small and medium enterprise productivity is proposed. An index system of flexiblility evaluation and fuzzy logic rule are established to propose an AHP method on evaluating production capability flexibility. According to an enterprise instance, the AHP-fuzzy synthesis evaluation method is applied to measure and evaluate production capability flexibility.3. According to the requirements of production capability flexibility in small and medium enterprise, the concept of flexibility variable in aggregate production planning is proposed. The policy-making model of flexiblity variable is constructed, and then the stochastic aggregate production planning model which is facing production capability flexibility is constructed. The genetic algorithm is applied to obtain optimal results and the validity and rationality of model and method are validated according to an instance.4. Based on the production scheduling characteristic in small and medium enterprise, the scheduling plan and rule is determined and the mathematical model is established from time and range dimension of production capability flexibility. The operational scheduling in workshop of small and medium enterprise which is facing production capability flexibility is researched accoding to an enterprise instance, and a relative computational method is proposed.5. Based on the description of workshop production information in the S95 standard, production informations are categorized and information flow is constructed. The design technology of the information flow management system which is facing production capability flexibility and key techniques of information filtration are researched.6. According to the present situation of workshop production control in vestee enterprise, the composition of workshop production control system is analyzed and structure functional diagram of the system is depicted. The realization method of the flexible function in workshop production control system is researched.Parts of research results in this dissertation are effectively applied in a vestee enterprise.