Lean Manufacturing through Value Stream Mapping and Simulation  

Oleh:

Kuah, Chuen Tse ; Wong, Kuan Yew

Jenis: Article from Proceeding
Dalam koleksi: APCOMS 2009: The 2nd Asia-Pacific Conference on Manufacturing System: Reconfigurable Manufacturing System for Facing Turbulent Manufacturing Environment, November 4th-5th, 2009, Yogyakarta, Indonesia, page VI.14-25.
Topik: Lean Manufacturing; Value Stream Mapping; Simulation
Fulltext: APCOMS G6-3.pdf (929.28KB)

Isi artikel

Achieving lean involves changes and continuous improvements. In order to make changes and improvements, one has to recognize that the current state of the operation is not where one wants to be. Value Stream Mapping (VSM) is a tool generally used to show the current state of a company and indicate where one can look for improvement opportunities. In normal practice, a future state map will then be created to reflect the state that one wants to be, and acts as a guide to achieve it. However, not much study has been done to evaluate whether the future states are achievable. Through simulation, a manager can see the impacts of each improvement alternative and may develop a more realistic and achievable future state map. In this paper, three simulation models were built to compare three improvement alternatives for an assembly department. The improvement alternatives are pull system without line balancing, push system with line balancing, and pull system with line balancing. Key measurements used to evaluate the alternatives are value-added ratio, work-in-progress (WIP) level, work-in-queue level, time in queue, lead time, throughput, and number of operators. The effects of the alternatives were clearly demonstrated by the simulation. Lastly, the best alternative was selected and a future value stream map was developed based on the selected alternative and simulation results.

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