| In the competing market, product quality is the lifeblood of manufacturing enterprises. It's a fundamental element of enterprise invincible Along with the development of the science and technology, improving of the equipment reliability and the environmental improvement, the accident ratio of product quality is gradual declining directly raising by hardware. But it's an upswing power state rising by the personal operation.The rapid development of science and technology, accelerating the modernization, makes the production equipment and process increasingly complex and sophisticated. Elements of human impact on product quality increasingly. Product quality accident by human-induced has become its main source of product quality accident.To the field from the nuclear, aerospace, chemical industry and transport high-risk areas of a major accident in the area, the researchers focused attention on the system in the human impact of reliability and security. Nowadays, research focuses on human reliability, human mechanism of the accident, human error identification and classification of cognitive mechanism, etc. Research results have been applied to the medical, business, transportation and other fields. Human error has become the hotspot of modern and future research, its research value and practical is significance of self-evident.In a gearbox, the eighty percent assembling processes of the gearbox is completed by person. The ninety percent accidents that assembling process generate because of the personal factor. Therefore, study how to improve personnel's operation, lower product bug rate to have important meaning. The gearbox assembly line has numerous factors affecting personnel to operate, such as:individual, technique, organizes environment etc. The more tedious and complicated of assembling process and environments, the quality of assemble process is more complexity and random. Each impact factor intertexture affects personnel to operate reliability. Indeed the uncertainty of everyone impact factor sense makes people don't know accident incidence rate. Operate a personnel to kindle accident have never been a single question, but a system. Each subsystem effects mutually interaction, induce the occurrence of accident in the system. According to the law of human error accident, this paper makes use of complexity to analytical evaluate the personal accident occurrence probability of each work job and production line basing on the system.This paper gives the definition of human error base on studied the quality control of human factors research status about domestic and abroad. Defects in product quality is mainly derived from the parts itself, production systems and person to operate the errors.The research indicate the advantages and disadvantages of method analysis of human error. The combined approach of FMEA and complexity is used to analyses human error in this paper. Base on the past research of complexity, this paper will use complexity theory to analyze the gearbox quality accident because of human error.According to the analysis features of human error factor, it can find out human error source clearly. Description and analysis of failure mode and effect analysis and human behavior, control model, accidents because of the quality control of human complexity and a comprehensive analysis method, is provided a theoretical basis for accident control of this paper.This paper makes use of failure mode and effect analysis (FMEA) to find out the factors of human error accident and predict the possible human error mode presence in the system, calculating accident occurrence probability. It adopts available guard measure to carry on an effective control accident to the accident of person. It describes operator's operation flow process of the gearbox assembly line from the angle of engineering.According to two kinds of mistake the classification method, Rasmussen and Reason, it classifies operator error model. Combine the difficult easy degree that adjudicates and takes place according to the expert to give power to weigh a value. It uses Shannon entropy computing complexity of the operator mistake.Based on complexity theory view to technology complexity and process complexity, this paper evaluates assembly line quality of operators of the gearbox assembly line. Select the technology factors to establish the assembly factors set. According to information entropy, it calculates the process complexity for each station. It uses SPSS software to be combined with the technology complexity and product defect rate.It use the dynamic complexity to describe the gearbox assembly line process complexity, fitting process complexity and product defect rate. Get the process complexity and product defect rate prediction model. Based on technology complexity and process complexity of product quality defects, it gets the two-variable Forecasting Model. The Forecasting Model of curving surface can predict the gearbox assembly line quality defect rate of the assembly operator. Prediction model provides reference for decision-making of enterprise in terms of cost and quality management.Based on the quality control analysis of the accident of human error, this paper adopts four control factors, just as person, technology, organization and environment.This paper applies graph theory to describe the control subsystem of the quality of human factors accident. This paper describes the relationship between the various control factors. This paper presents the associated complexity of controlling factors. In this paper, the associated complexity, described by the relationship between control factors and the accident, is the evaluation index of the quality accident control of human error. This paper analyzes the gearbox assembly line of the quality control factor in the accident and its associated complexity of subsystems. This article sets up personal factor as the quality accident control objection. This paper gives the definition of the complexity of personal control factor by describing and analyzing the factors of personal control sub-system operators. This paper calculates the value of control complexity base on the characteristic function of complex networksThis paper makes use of MATLAB software to simulate a production line of two axes. Make use of the method of random numbers to computing each step of operator uncertainty degree correction coefficient. Gather to carry on an appraisal to each step operator PSF with the uncertainty degree correction coefficient appraisal to know the status of the PSF.It provides basis for operator of the production line control.Innovation of this paper is to apply Failure Mode and Effects Analysis Model to human error of the gearbox assembly line. Based on calculation of conditional probability of human error entropy control of the complexity of man, is provide the basis for quality control and improvement of the accident. Based on complexity theory view to technology complexity and process complexity, this paper evaluates assembly line quality of operators of the gearbox assembly line. Selecte set of process factors to caculate technology complexity of six main stations. It uses the dynamic complexity to describe the gearbox assembly line process complexity. Based on technology complexity and process complexity of product quality defects, it gets the two-variable Forecasting Model. The Forecasting Model of curving surface can predict the gearbox assembly line quality defect rate of the assembly operator.Based on human cognitive model, it uses MATLAB to simulate personnel process. Use this model to evaluate the performance shaping factors of the operator. This simulation model can effectively monitor the personnel to operate the errors, in order to provide the basis for production line quality control.In this paper, it uses complexity theory with computer simulation model to evaluate and control the gearbox assembly line quality accident of human error. It provides reference and theoretical basis for the quality control of human error of mechanical assembly in the future.
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