NDLI: Manufacturing modeling and optimization

Content Provider	IEEE Xplore Digital Library
Author	O'Ferrell, D.S.
Copyright Year	1995
Description	Author affiliation: Siltec Corp., Salem, OR, USA (O'Ferrell, D.S.)
Abstract	The purpose of this project was to model and optimize the personnel and equipment utilization in Siltec's Epitaxial manufacturing process. Previous attempts to model the behavior of the process through static models (linear programming and spreadsheets) had not attempted to explain any of the variability experienced in the process line. SIMAN was used to create a simple model to study the effects of crosstraining on productivity and cycle time. The model was validated using actual production data from Siltec's production line. The programming of the model was verified by comparing "boundary values" with expected behavior. The model was used to predict production volumes given various absence rates and crosstraining levels. Additional experiments investigated the effects of Kanban size, equipment failure rates, operator staffing levels, and equipment capacity increases on operator staffing requirements, production throughput and WIP, and cycle time. During periods of normal operator absence (10%), productivity is improved by about 10% and cycle time is improved by about 50% if all operators are fully crosstrained. During periods of high operator absence (20%), productivity is improved by about 30% and cycle time is improved by about 50% if all operators are fully crosstrained. In all cases, equipment utilization is improved with increased crosstraining. Additional experiments allowed determination of required headcount, equipment additions, and Kanban size for optimized production throughput, WIP, and cycle time. The general conclusion of this project is an affirmation of expected behavior. Increasing crosstraining will improve productivity, especially during periods of high operator absence. Increasing Kanban size will increase throughput minimally while increasing WIP and cycle time considerably. Moderate increases in capacity at bottlenecks will result in dramatic increases in throughput. The model has been and will continue to be used to make qualitative and quantitative decisions concerning headcount, resource allocation, and expansion plans.
Starting Page	334
Ending Page	339
File Size	604482
Page Count	6
File Format	PDF
ISBN	0780327136
ISSN	10788743
DOI	10.1109/ASMC.1995.484400
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-11-13
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Virtual manufacturing Semiconductor process modeling Production Productivity Throughput Personnel Manufacturing processes Linear programming Predictive models Equipment failure
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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