Production System Performance Improvement by Assembly Line-seru Conversion
Seru, as a new effective and flexible production system, has been successfully proved in practice and received more and more attention from academic communities. However, line-seru conversion is an interesting but difficult problem because the product dem
- PDF / 597,394 Bytes
- 16 Pages / 439.37 x 666.142 pts Page_size
- 81 Downloads / 225 Views
Production System Performance Improvement by Assembly Line-seru Conversion Luming Shao, Zhe Zhang and Yong Yin
Abstract Seru, as a new effective and flexible production system, has been successfully proved in practice and received more and more attention from academic communities. However, line-seru conversion is an interesting but difficult problem because the product demand is uncertain and worker’s skill levels are different. In this paper, we propose a multi-objective model to describe line-seru problem with one product type but many orders for minimizing the total flow time and the total labor cost. Taking line-seru conversion problem in the electronics industries as an example, how much time and cost can be reduced and how many efficiencies can be improved by line-seru conversion are analyzed. According to the solutions of the proposed multi-objective model, seru has a great performance and different seru combinations can bring unequal reduction of time and cost. Keywords Seru · Conveyor assembly line · Line-seru conversion · Multi-objective
95.1 Introduction In the volatile and uncertain market, such as electronics industry, the business is in a rapidly changing environment because of its shorter product life cycles, more unpredictable product types, and the variable production volumes with the fast innovation technology [9]. There are two main aspects of demand changes: product variety and L. Shao · Z. Zhang (B) School Economics and Management, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of China e-mail: [email protected] Y. Yin Graduate School of Business, Doshisha University, Karasuma-imadegawa, Kamigyo-ku, Kyoto 602-8580, Japan © Springer Science+Business Media Singapore 2017 J. Xu et al. (eds.), Proceedings of the Tenth International Conference on Management Science and Engineering Management, Advances in Intelligent Systems and Computing 502, DOI 10.1007/978-981-10-1837-4_95
1165
1166
L. Shao et al.
product volume [8]. To cope with volatile demand, many electronic giants attempt to apply Toyota Production System (TPS) to satisfy fluctuations in customers demand but failed, and the economies of scale and shorter cycle time brought by mass production are disappearing. The efficiency and low cost of the conveyor assembly line will greatly decrease when met with volatile demands [1]. Hence, traditional TPS system applied in conveyor assembly line could not satisfy the volatile customers demand because of the fast updates of products. In this situation, to produce more variety, flexible volume and high-value-added products, Sony invited an expert, Hitoshi Yamada, to solve this problem after failing to test the new manufacturing approaches including TPS and one-person production organization [12]. In 1992, several short lines replaced the long assembly conveyor line to produce the entire product in Sony [12], and that made a big success. In 1994, Kon Tatsuyoshi, a former staff of Sony, first called the term “seru seisan” for such an innovation of the production
Data Loading...
