Browsing Industrail Tribology Machine Dynamics [ITMMEC] by Issue Date
Now showing items 1-20 of 50
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Response of dynamically stressed material in sliding
(1991)Sliding wear has been modelled on the basis of adhesive transfer as well as fatigue. In fatigue wear modelling it is assumed that the repetitive normal and tangential stressing is responsible for crack growth leading to ... -
On the abrasive wear of some polyimides and their composites
(1991)The tribological properties are not intrinsic material properties; they depend on the experimental conditions. Composites that are very suitable for one type of application may not be useful for others. With this view, it ... -
Distortion analysis of large thrust bearing on elastic support
(1991)A model for the analysis of distortion of a large thrust bearing pad is proposed. The analysis aims to simulate the realistic conditions in bearings. Free-edge boundary conditions are implemented and spring-supported pads ... -
Studies on abrasive wear of carbon fibre (short) reinforced polyamide composites
(1992)This paper reports the results of the abrasive wear investigations of various composites of polyamide (nylon 6,6) reinforced with increasing amounts of carbon fibre against various abrasive papers under dry conditions. The ... -
FMEA—A diagraph and matrix approach
(1992)This paper presents a method for failure mode and effects analysis (FMEA) of mechanical and hydraulic systems based on a diagraph and matrix approach. The method takes into account structural as well as functional interaction ... -
Comparison of vibration and acoustic measurement techniques for the condition monitoring of rolling element bearings
(1992)The detectability of defects in ball bearings by various vibration and acoustic measurement methods is compared. Measurements have been performed on good new bearings and bearings with simulated defects in their elements. ... -
Evaluation of oil samples from centrifugal separators
(1993)The cleanliness of lubricating oil in plant equipment is of prime concern since particulate contamination can lead to undesirable wear. It is important to be able to measure the size distribution of such particles in order ... -
A comparison of some vibration parameters for the condition monitoring of rolling element bearings
(1994)In the present study some of the vibration parameters used for the detection of defects in rolling element bearings have been compared. Overall RMS, peak, crest factor, power and cepstrum of the vibration acceleration ... -
Effect of Martensite Content on The Sliding Behaviour of Boron-Ion-Implanted 304 Stainless Steel
(1995)We have investigated the effects of boron ion implantation on the wear behaviour of 304 stainless steel. The initial phase composition of the specimens was varied by using two different kinds of polishing technique. ... -
Improvement of adhesion of TiN coatings on stainless steel substrates by high energy heavy ion irradiation
(1995)The performance of tribological coatings depends greatly on the adhesion of the coating to the substrate. Various techniques are known for surface modification. Ion irradiation is a technique which has been used to modify ... -
Sliding Behaviour of Boron Ion-Implanted 304 Stainless Steel
(1995)We have studied the influence of boron ion implantation on the friction and wear behaviour of 304 stainless steel. We find an increase in microhardness following implantation. We also observe a reduction in wear and ... -
Acoustic emission in dynamic compression and its relevance to tribology
(1995)In the present work an acoustic emission (AE) technique is used to detec: the initiation and propagation of short cracks in compressive cyclic loading. A mild steel surface was subjected to cyclic compressive stress of 100 ... -
A Physical Basis for Irradiation-Induced Modification of Thin-Film Stresses
(1995)A mechanism is proposed for the modification of stresses in thin films by irradiation. A tensile stress causes preferential alignment of interstitial loops such that the normal to the plane of the loop is parallel to the ... -
Asperity level conformity in partial EHL part1:its characterization
(1996)Traditionally in partial elastohydrodynamic lubrication (EHL)the contact through lubricating films has been modeled assuming random contarct and taking into accountratio of film thickness to r.m.s roughness(h/o).In some ... -
Asperity level conformity in partial EHL. Part II - Its influence in lubrication
(1996)Surface was confermity characterized in an eariler study(27)on the basis of composite roughness profile.In this paper the influance of surface conformity in luberication is reported.The resuls of experiments under high ... -
An analytical model for the prediction of the vibration response of rolling element bearings due to a localized defect
(1997)An analytical model has been proposed for predicting the vibration frequencies of rolling bearings and the amplitudes of significant frequency components due to a localized defect on outer race,inner race or on one of the ... -
A review of vibration and acoustic measurement methods for the detection of defects in rolling element bearings
(1999)A review of vibration and acoustic measurement methods for the detection of defects in rolling element bearings is presented in this paper. Detection of both localized and distributed categories of defect has been considered. ... -
Wear of cryo-treated engineering polymers and composites
(1999)Polymers and composites are extensively used in wear situations dominated by various types of abrasive mechanisms. Incorporation of,heat treatment and surface engineering by various chemical and physical techniques have ... -
Condition monitoring of steam turbine-generator through contamination analysis of used lubricating oil
(1999)The objective of this paper is to present a systematic analysis of wear particles contained in used lubricant of steam turbinegenerator of a thermal power station. The turbogenerator was condition-monitored over a period ...