- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 31 to 40 of 64 (0.071 seconds)| 31 |
The relative phase distortion detection techniqueGoodhall, Anthony John January 1994 (has links)
No description available.
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Capital plant downtime modellingFung, A. W-H. January 1984 (has links)
No description available.
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Computer-aided design in sampling inspection by attributesCurram, J. B. January 1988 (has links)
No description available.
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The development of an automated system for on-line tool wear monitoringIsmail, E. January 1989 (has links)
An investigation has been completed to determine the feasibility of using vibration measurement to develop an online tool wear monitoring system.Conventionaltransducers and FFT signal analysers have been used as the starting point for data collection and analysis. Additional software has been developed in order to obtain additional and enhanced analysis using statistical data such as percentile analysis and 4th statistical moments. The signal analysers have been interfaced with an IBM compatible PC to allow efficient data collection and analysis. • The measurement of surface finish via the use of centre line average has been selected as the primary indicator of tool wear. An experimental programme has been completed which examines the relationship between vibration measurement and surface finish during turning operations. This has provided sufficient general rules and guidelines to enable the method to be extended to other processes. It also provides information from which commonly occurring faults such as looseness of the tool holder, changes in material properties and swarf presence in the toolholder can be identified. Tests have been completed using cast iron, ENS and EN3 steels. An expert system has been developed. It has been demonstrated that sufficient data can be collected during the setting-up stage or commissioning part of a machining process from which, using the expert system, reliable tool wear monitoring can be achieved for all subsequent tests. In addition to predicting'the surface for all stages of tool life, the system can identify common faults such as looseness of the toolholder, the presence of swarf in the toolholder and changes in material properties. This system has been evaluated in relation to the available data, the present expectation of quality assesment required from the machine operation and relative to available commercial monitors. The system offers significant improvements.
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Integrated approach to condition-based reliability assessment and maintenance planningEl-Haram, Mohamed Abdulla January 1995 (has links)
No description available.
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A redundancy approach to sensor failure detection : with application to turbofan enginesPiercy, Neil Philip January 1988 (has links)
No description available.
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Classification of defects using uncertainty in industrial web inspectionWilson, Duncan John January 1998 (has links)
No description available.
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Computer based on-line quality controlRobinson, David Charles January 1991 (has links)
No description available.
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A procedure for monitoring the mean of autocorrelated industrial dataPereira-Leite, Margarida Maria Alvim January 1993 (has links)
No description available.
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The design and implementation of a systems model to meet ISO 9000-1987Owen, Bryn David January 1991 (has links)
No description available.
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