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Virginia Tech

Leadtime estimation in a manufacturing shop environment

Abstract

dc:description.abstract

This research examines the relationships between the independent variables; lot size, sequencing rule, and shop type/product mix and the â dependent variables; work-in-process, machine utilization, flowtime, and leadtime. These relationships have seldom been investigated by academicians. There is no satisfactory method available in the literature today that can be used to accurately estimate leadtime. This research developed methods for leadtime estimation. A leadtime estimation method would be invaluable to the production planner, for it would enable the person to decide when the job should be released to the shop. The experimental system considered in this research is an eight machine shop. Three different shop types, a jobshop, modified flowshop, and a flowshop, were modelled. Each shop type had eight different product types being manufactured. Two different sequencing rules, SPT and FIFO, were used. The entire system was analyzed via simulation on an IBM P.C. using SIMAN system simulation concepts.

Degree

thesis:*
Name thesis:degree_name
Master of Science
Level thesis:degree_level
masters
Discipline thesis:degree_discipline
Industrial Engineering and Operations Research
Department dc:contributor.department
Industrial Engineering and Operations Research
Grantor dc:publisher
Virginia Tech
Year dc:date.issued
1985

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Srihari, Krishnaswami
Chair dc:contributor.committeechair
  • Greene, Timothy J.
Committee members dc:contributor.committeemember
  • Fabrycky, Wolter J.
  • Jones, Marilyn S.

Rights

dc:rights
Statement dc:rights
  • In Copyright

Identifiers

dc:identifier.*
Dc Identifier Other
etd-11142012-040325
OAI identifier oai:identifier
oai:vtechworks.lib.vt.edu:10919/45684

Chain of custody

source
Harvested from
Virginia Tech
Base URL
vtechworks.lib.vt.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
related terms
citation

Srihari, Krishnaswami. Leadtime estimation in a manufacturing shop environment. masters thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/45684