基于腦力負荷的混流裝配產(chǎn)品質量與效率平衡優(yōu)化研究
發(fā)布時間：2019-03-31 17:16
【摘要】：隨著混流裝配線復雜性的不斷增加，裝配過程中操作者的腦力負荷也在不斷提高，導致人因失誤增多，不僅極大地影響了產(chǎn)品的裝配質量和效率，而且過高的腦力負荷還會影響操作者的身心健康。為此，有必要從操作者角度出發(fā)，研究腦力負荷對混流裝配線裝配質量和效率的影響，以期通過構建定量化模型來確定適合操作者工作的最佳腦力負荷水平。 本文運用時間壓力模型對腦力負荷進行建模，并通過分析各種因素對腦力負荷的影響，引入了操作者經(jīng)驗因素對上述模型進行修正。根據(jù)腦力負荷與工作績效的關系曲線可知，過高或過低的腦力負荷都不利于工作績效的發(fā)揮。基于此，本文在裝配復雜性的基礎上，考慮了腦力負荷對裝配績效的影響，運用質量管理中單位缺陷數(shù)與合格率的關系理論建立了單一工作站的產(chǎn)品合格率模型，并根據(jù)可靠性理論構建了串聯(lián)布局下產(chǎn)品流通合格率與效率的平衡優(yōu)化模型，以確定裝配線上各個工作站的最優(yōu)腦力負荷，最后通過算例對模型進行了驗證。結果表明，將腦力負荷因素考慮到混流裝配線優(yōu)化設計中能夠有效地平衡產(chǎn)品流通合格率和裝配線效率，且提高操作者經(jīng)驗水平能夠減輕腦力負荷對質量和效率的影響，保證高效率的同時也提高了產(chǎn)出質量水平。 本文的研究成果能夠為每一位操作者確定最優(yōu)的腦力負荷水平，防止過高或過低的腦力負荷對裝配線質量和效率的不良影響，同時保護了勞動者的身心健康，進一步優(yōu)化了人機作業(yè)環(huán)境，有效地減少甚至避免了人因失誤和安全事故的發(fā)生，具有重要的應用價值。此外，本文的研究成果也為優(yōu)化設計混流裝配線提供了一定的理論基礎，對人因質量的深入研究同樣具有重要的理論意義。
[Abstract]:With the increasing complexity of the mixed-flow assembly line, the mental load of the operator is also increasing in the assembly process, which leads to the increase of human error, which not only greatly affects the assembly quality and efficiency of the product. And too much mental load can also affect the physical and mental health of the operator. Therefore, it is necessary to study the effect of mental load on assembly quality and efficiency of mixed-flow assembly line from the point of view of operator, in order to establish a quantitative model to determine the optimal mental load level suitable for operator's work. In this paper, the time-pressure model is used to model the mental load, and by analyzing the influence of various factors on the mental load, the operator's experience factor is introduced to modify the above-mentioned model. According to the relationship curve between mental load and work performance, it can be seen that too high or too low mental load is not conducive to the performance of work. Based on the complexity of assembly, this paper considers the influence of mental load on assembly performance, and establishes the qualified rate model of single workstation based on the theory of the relationship between the number of defects per unit and the qualified rate in quality management. According to the reliability theory, the equilibrium optimization model of qualified rate and efficiency of product circulation under the series layout is constructed to determine the optimal mental load of every workstation on the assembly line. Finally, the model is verified by an example. The results show that considering the mental load factor in the optimization design of mixed-flow assembly line, the qualified rate of product circulation and the efficiency of assembly line can be effectively balanced, and the effect of mental load on quality and efficiency can be alleviated by improving the operator's experience level. Ensure high efficiency at the same time also improve the level of output quality. The research results of this paper can determine the optimal mental load level for each operator, prevent the adverse effects of too high or too low mental load on the quality and efficiency of assembly line, and protect the physical and mental health of workers at the same time. It further optimizes the man-machine working environment, effectively reduces and even avoids the occurrence of human errors and safety accidents, and has important application value. In addition, the research results of this paper also provide a certain theoretical basis for optimizing the design of mixed-flow assembly line, and it is also of great theoretical significance for the in-depth study of human quality.
【學位授予單位】：天津大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TB49;TP18
本文編號：2451113
[Abstract]:With the increasing complexity of the mixed-flow assembly line, the mental load of the operator is also increasing in the assembly process, which leads to the increase of human error, which not only greatly affects the assembly quality and efficiency of the product. And too much mental load can also affect the physical and mental health of the operator. Therefore, it is necessary to study the effect of mental load on assembly quality and efficiency of mixed-flow assembly line from the point of view of operator, in order to establish a quantitative model to determine the optimal mental load level suitable for operator's work. In this paper, the time-pressure model is used to model the mental load, and by analyzing the influence of various factors on the mental load, the operator's experience factor is introduced to modify the above-mentioned model. According to the relationship curve between mental load and work performance, it can be seen that too high or too low mental load is not conducive to the performance of work. Based on the complexity of assembly, this paper considers the influence of mental load on assembly performance, and establishes the qualified rate model of single workstation based on the theory of the relationship between the number of defects per unit and the qualified rate in quality management. According to the reliability theory, the equilibrium optimization model of qualified rate and efficiency of product circulation under the series layout is constructed to determine the optimal mental load of every workstation on the assembly line. Finally, the model is verified by an example. The results show that considering the mental load factor in the optimization design of mixed-flow assembly line, the qualified rate of product circulation and the efficiency of assembly line can be effectively balanced, and the effect of mental load on quality and efficiency can be alleviated by improving the operator's experience level. Ensure high efficiency at the same time also improve the level of output quality. The research results of this paper can determine the optimal mental load level for each operator, prevent the adverse effects of too high or too low mental load on the quality and efficiency of assembly line, and protect the physical and mental health of workers at the same time. It further optimizes the man-machine working environment, effectively reduces and even avoids the occurrence of human errors and safety accidents, and has important application value. In addition, the research results of this paper also provide a certain theoretical basis for optimizing the design of mixed-flow assembly line, and it is also of great theoretical significance for the in-depth study of human quality.
【學位授予單位】：天津大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TB49;TP18
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