In a manufacturing industry, mixed model assembly line(MMAL) is preferred in order to meet the variety in product demand. MMAL balancing helps in assembling products with similar characteristics in a random fashion. T...In a manufacturing industry, mixed model assembly line(MMAL) is preferred in order to meet the variety in product demand. MMAL balancing helps in assembling products with similar characteristics in a random fashion. The objective of this work aims in reducing the number of workstations, work load index between stations and within each station. As manual contribution of workers in final assembly line is more, ergonomics is taken as an additional objective function. Ergonomic risk level of a workstation is evaluated using a parameter called accumulated risk posture(ARP), which is calculated using rapid upper limb assessment(RULA) check sheet. This work is based on the case study of an MMAL problem in Rane(Madras) Ltd.(India), in which a problem based genetic algorithm(GA) has been proposed to minimize the mentioned objectives. The working of the genetic operators such as selection, crossover and mutation has been modified with respect to the addressed MMAL problem. The results show that there is a significant impact over productivity and the process time of the final assembled product, i.e., the rate of production is increased by 39.5% and the assembly time for one particular model is reduced to 13 min from existing 18 min. Also, the space required using the proposed assembly line is only 200 m2 against existing 350 m2. Further, the algorithm helps in reducing workers fatigue(i.e., ergonomic friendly).展开更多
Clothing is a kind of the clothing design activity based on the emotional factors and the concrete understandings. Clothing is not only a kind of the life necessities, but also the interpretation and expression of our...Clothing is a kind of the clothing design activity based on the emotional factors and the concrete understandings. Clothing is not only a kind of the life necessities, but also the interpretation and expression of our own temperament and personalities. Of course, the best effects of the entire costume design activity can be achieved only when the costume itself is matched with the person＇s identity. In this paper, from the analysis of the influence and the relationship between the clothing emotion and the fashion design activities, combined with the analysis of the specific characteristics of the groups of the modern occupational females, the author explores the modem women＇s specific needs in the clothing emotional design, and explores the specific ideas of the modern professional women＇s clothing emotional design.展开更多
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文摘In a manufacturing industry, mixed model assembly line(MMAL) is preferred in order to meet the variety in product demand. MMAL balancing helps in assembling products with similar characteristics in a random fashion. The objective of this work aims in reducing the number of workstations, work load index between stations and within each station. As manual contribution of workers in final assembly line is more, ergonomics is taken as an additional objective function. Ergonomic risk level of a workstation is evaluated using a parameter called accumulated risk posture(ARP), which is calculated using rapid upper limb assessment(RULA) check sheet. This work is based on the case study of an MMAL problem in Rane(Madras) Ltd.(India), in which a problem based genetic algorithm(GA) has been proposed to minimize the mentioned objectives. The working of the genetic operators such as selection, crossover and mutation has been modified with respect to the addressed MMAL problem. The results show that there is a significant impact over productivity and the process time of the final assembled product, i.e., the rate of production is increased by 39.5% and the assembly time for one particular model is reduced to 13 min from existing 18 min. Also, the space required using the proposed assembly line is only 200 m2 against existing 350 m2. Further, the algorithm helps in reducing workers fatigue(i.e., ergonomic friendly).
文摘Clothing is a kind of the clothing design activity based on the emotional factors and the concrete understandings. Clothing is not only a kind of the life necessities, but also the interpretation and expression of our own temperament and personalities. Of course, the best effects of the entire costume design activity can be achieved only when the costume itself is matched with the person＇s identity. In this paper, from the analysis of the influence and the relationship between the clothing emotion and the fashion design activities, combined with the analysis of the specific characteristics of the groups of the modern occupational females, the author explores the modem women＇s specific needs in the clothing emotional design, and explores the specific ideas of the modern professional women＇s clothing emotional design.
