The Research On Production Planning And Control In Ship-building Manufacturing Of Our Country

After several decades of the development of ship-building manufacturing in our country, the output of the ship-building is growing rapidly and it has occupied the third place in the world. As a crucial role during the development of national economy in our country, especially during the period of transition to industrialized country, the ship-building manufacturing becomes more important. At the same time, we should have a clear view, with the rapid growth of shipbuilding output, there is a wide gap between the advanced ship-building countries, Japan and Korea and our country in the method of production management and the concepts which is embodied in the aspects of production planning and control. Therefore, it is necessary to study the production planning and control of ship-building to improve its management level, to improve its productivity and to enhance the competitiveness of enterprise.From the production and the management characteristics,the production planning and control present situations and questions on ship-building of our country, according to the research present situations of the domestic and foreign production planning and control, and the domestic production planning and control of ship-building manufacturing, through contrastive analysis of Critical Chain Project Management (CCPM) method and production planning and control methods in ship-building manufacturing, and feasibility analysis in ship-building manufacturing, this article determined that the ship-building manufacturing of our country carried on production planning and control using the method of CCPM, and it analyzed the questions which existed in practice of CCPM. Based on these, it constructed the multi-project production planning and control model—C-E model which based on the theory of CCPM, the basic philosophy is that it learned and used ERP management pattern in the ship-building manufacturing, and used CCPM to solve multi-project schedule management problems and draw production planning, through determining the"bottleneck"and the critical chain, grasping the key link, using the critical chain schedule optimization algorithm to optimize schedule to reasonably arrange the key manufacturing resource, improve the capacity of key link and solve the problems of production planning and control. According to the implementation process of the model, combined with the specific production and management characteristics of ship-building manufacturing, the article studied the major tasks of each module of the model. At last, it analyzed the main features of the model, explored the problems in implementation process of the model and proposed the supporting measures which could guarantee the model implementation.The innovation of this article is using CCPM method in ship-building production planning and control and constructs the C-E model according to the specific characteristics of production and management of the ship-building manufacturing. It designed the main implement flow of the model which included drawing the critical chain schedule, drawing the material requirements planning, drawing the self-production planning and production plan control of the ships. In the course of drawing the critical chain schedule, the article applied the Gray Prediction Theory to determine the process duration, used 80% probability possible completion time as the estimation of the process duration to shorten the project duration. In the course of drawing the material requirements planning, the article took the measure of classified administration for the materials by its importance, associated the material requirements planning and the critical chain schedule and achieved the high degree of unity between the material requirements and its supply to provide the better service for the production. In production plan control aspect, the article used the critical chain control method and the earned value analysis method to control the project schedule and separated critical chain from non-critical chain in the course of calculating earned value to achieve preferable progress control.