Papers by Author: Ping Jiang

Abstract: In recent years, with the development of modern technologies and safety science, catastrophic accidents tend to be avoided successfully. However, general accidents which cause minor loss or casualties still occur occasionally and hence become main part of all accidents. Therefore, to make effective control of general accidents, fault trees are established based on the analysis of historical general accidents. The influencing factors are roughly divided into human factors and equipment system factors. This paper focuses on human factors and the relationships between the factors and general accidents are analyzed using the improved analytic hierarchy process (AHP) and methods of risk identification. The importance of the factors is thus evaluated. Results of the evaluation are helpful to management.

Abstract: The definition of process system reliability was provided. The study focused on the process reliability model with the quality parameter as index. Taking into account the effect of error propagation in working procedures on the whole process, it proposed the calculating methods of working procedures and process system reliability, which can effectively evaluate the ability of process subsystem in fulfilling design requirement.

Abstract: As performance of processes in a manufacturing system determines the quality of product, the factors that have effects on the processes need to be taken into account to guarantee the product quality during manufacturing. As impacting factors’ effects are usually qualitatively described and hence result in difficulties of quantifying and evaluating, this paper proposes organizing a group of experts to evaluate the effects of the impacting factors and applying a fuzzy Impact-Matrix method to quantify the evaluation results. The proposed method provides engineers with a general perspective to identify important impacting factors and thus facilitates the control of processes.