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Bottleneck identification in cycle time reduction and throughput improvement efforts in an automotive transmission plant

IP.com Disclosure Number: IPCOM000128111D
Original Publication Date: 1999-Dec-31
Included in the Prior Art Database: 2005-Sep-14
Document File: 5 page(s) / 19K

Publishing Venue

Software Patent Institute

Related People

Jeff R. M. Longcore: AUTHOR [+3]

Related Documents

http://theses.mit.edu:80/Dienst/UI/2.0/Describe/0018.mit.theses/1999-66: URL

Abstract

A critical step in many improvement methodologies is the identification of process bottlenecks. The techniques for identifying bottlenecks that are suggested by many improvement methodologies are no more than simple heuristics. These simple heuristics may prove inadequate in a complex manufacturing environment.

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 This record is the front matter from a document that appears on a server at MIT and is used through permission from MIT. See http://theses.mit.edu:80/Dienst/UI/2.0/Describe/0018.mit.theses/1999-66 for copyright details and for the full document in image form.

Bottleneck Identification in Cycle Time Reduction and Throughput Improvement Efforts in an Automotive Transmission Plant

by

Jeff R M Longcore
BS Aerospace Engineering, University of Michigan, 1989 Submitted in partial fulfillment of the requirements for the degree of Master of Science in Management

Sloan School of Management

at the Massachusetts Institute of Technology June 1999
SIGNATURE OF author: [[signature omitted]]

Department of Mechanical Engineering May 19,1999
CERTIFIED BY: [[SIGNATURE OMITTED]] Professor David E. Hardt Thesis Advisor Department of Mechanical Engineering Donald B. Rosenfield Thesis Advisor Senior Lecturer, Sloan of Management ACCEPTED BY: [[SIGNATURE OMITTED]]

Ain A. Sonin

Chairman of the Graduate Committee Department of Mechanical Engineering Lawrence S. Abel
Director of Master's Program Sloan School of Management ARCHIVES MASSACHUSETTS INSTITUTE OF TECHNOLOGY LIBRARIES JUL 12 1999

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Massachusetts Institute of Technology Page 1 Dec 31, 1999

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Bottleneck identification in cycle time reduction and throughput improvement efforts in an automotive transmission plant

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[2]

Bottleneck Identification in Cycle Time Reduction and Throughput Improvement Efforts in an Automotive Transmission Plant

by Jeff R M Longcore

Submitted to the Department of Mechanical Engineering and the Sloan School of Management on May 19,1999 in partial fulfillment of the requirements for the degrees of Master of Science in Mechanical Engineering and Master of Science in Management

Abstract

A critical step in many improvement methodologies is the identification of process bottlenecks. The techniques for identifying bottlenecks that are suggested by many improvement methodologies are no more than simple heuristics. These simple heuristics may prove inadequate in a complex manufacturing environment.

This thesis asserts that the use of analytical tools is often required for successful bottleneck identification. This claim is supported by two examples from a research internship conducted in en automotive manufacturing plant.

The first example describes the process used to reduce the average cycle time of a system consisting of two production cells that shared a resource. In this system, the average cycle time is strongly influenced by the manner in which the two cells contend for the shared resource. Depending on the system parameters, reducing the cycle time of one cell may actually increase the average cycle time of the system. Two methods for analyzing this system are described, and applied to identify a low-risk, low-cost cycle time reduction opportunity.

The second example describes the process used to identify the bottleneck operations...