Martin Tockner, A. Wolfberger, Y. Huang, G. Pinter, A. Hausberger
Machine manufacturers face the challenge that components in contact with aggressive media must fulfill extreme requirements in terms of corrosion and wear resistance. In many cases, filled polymer-based coatings provide sufficient protection. In the course of this work, such coatings were produced and tribologically tested with respect to their tribological performance from model to component-like levels. To obtain information on the occurring tribological influences with regard to used resin or particle size, rotational ball-on-disk tests were carried out. Based on these findings, the most promising coating was selected and tested using application-oriented test methods. The obtained results showed a generally good wear resistance of the coatings against metallic counterparts in lubricated states. In addition, the further development of the model tests, towards application-oriented tests, also provided the basis for the transferability of the results.
{"title":"Tribologie und Schmierungstechnik Tockner, Martin; Wolfberger, Archim; Huang, Youping; Hausberger, Andreas; Pinter, Gerald Tribological Method Development of Abrasive Resistant Polymer Coatings for Industrial Applications","authors":"Martin Tockner, A. Wolfberger, Y. Huang, G. Pinter, A. Hausberger","doi":"10.24053/tus-2022-0043","DOIUrl":"https://doi.org/10.24053/tus-2022-0043","url":null,"abstract":"Machine manufacturers face the challenge that components in contact with aggressive media must fulfill extreme requirements in terms of corrosion and wear resistance. In many cases, filled polymer-based coatings provide sufficient protection. In the course of this work, such coatings were produced and tribologically tested with respect to their tribological performance from model to component-like levels. To obtain information on the occurring tribological influences with regard to used resin or particle size, rotational ball-on-disk tests were carried out. Based on these findings, the most promising coating was selected and tested using application-oriented test methods. The obtained results showed a generally good wear resistance of the coatings against metallic counterparts in lubricated states. In addition, the further development of the model tests, towards application-oriented tests, also provided the basis for the transferability of the results.","PeriodicalId":53690,"journal":{"name":"Tribologie und Schmierungstechnik","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48471286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The sealing friction in pneumatic spool valves is influenced by several factors, like the lubricant and sealing material properties, the topography of the contacting surfaces and the geometry. In practice, surface roughness and geometry are subject to manufacturing tolerances. This publication presents a simulative investigation on how these tolerances affect the sealing contact. For that, friction force and leakage are calculated for different bore diameters and surface roughness. An increase in bore diameter leads to an almost linear decrease in friction and an increase in expected leakage. Higher surface roughness amplitudes are predicted to increase both friction and expected leakage.
{"title":"Influence of Manufacturing Tolerances on the Behavior of Pneumatic Seals using EHL Simulations","authors":"Niklas Bauer, K. Schmitz","doi":"10.24053/tus-2022-0046","DOIUrl":"https://doi.org/10.24053/tus-2022-0046","url":null,"abstract":"The sealing friction in pneumatic spool valves is influenced by several factors, like the lubricant and sealing material properties, the topography of the contacting surfaces and the geometry. In practice, surface roughness and geometry are subject to manufacturing tolerances. This publication presents a simulative investigation on how these tolerances affect the sealing contact. For that, friction force and leakage are calculated for different bore diameters and surface roughness. An increase in bore diameter leads to an almost linear decrease in friction and an increase in expected leakage. Higher surface roughness amplitudes are predicted to increase both friction and expected leakage.","PeriodicalId":53690,"journal":{"name":"Tribologie und Schmierungstechnik","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47012925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In axial piston pumps, hydrostatically partially balanced contacts are predominantly used. The use of these pumps in variable-speed configurations, such as in electro-hydrostatic axes, has proven to be very challenging in terms of robustness. Particularly affected here is the slipper-swashplate contact, via which the piston loads are supported. The wear processes and driving effects occurring here have not yet been sufficiently addressed in the current state of research. Within the scope of this publication, a model experiment is therefore to be presented which allows the targeted investigation of the wear behaviour of the slipper-swashplate contact under controlled and reproducible conditions. The objectives of the model experiment are, on the one hand, the empirical investigation of the interactions in variable-speed operation and, on the other hand, the validation of simulative considerations.
{"title":"Modellversuch für die experimentelle Untersuchung des Verschleißverhaltens des Gleitschuh-Schrägscheibe Kontakts","authors":"Amos Merkel, F. Schlegel, Katharina Schmitz","doi":"10.24053/tus-2022-0040","DOIUrl":"https://doi.org/10.24053/tus-2022-0040","url":null,"abstract":"In axial piston pumps, hydrostatically partially balanced contacts are predominantly used. The use of these pumps in variable-speed configurations, such as in electro-hydrostatic axes, has proven to be very challenging in terms of robustness. Particularly affected here is the slipper-swashplate contact, via which the piston loads are supported. The wear processes and driving effects occurring here have not yet been sufficiently addressed in the current state of research. Within the scope of this publication, a model experiment is therefore to be presented which allows the targeted investigation of the wear behaviour of the slipper-swashplate contact under controlled and reproducible conditions. The objectives of the model experiment are, on the one hand, the empirical investigation of the interactions in variable-speed operation and, on the other hand, the validation of simulative considerations.","PeriodicalId":53690,"journal":{"name":"Tribologie und Schmierungstechnik","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45447668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Preparation of rotating machinery oil system plays very important role in commissioning process and defines if commissioning process of the turbine brings some troubles. Moreover, future maintenance and operation is very much affected if oil system cleanliness is underestimated and machine commissioned without following complex cleaning procedure. Only standard displacement flush is not effective when system is corroded, where Varnish is agglomerated, pipe assembly done on site with lack of proper care. However, high machine availability and zero breakdowns is nowadays the main goal in every industry sectors! How to restore heavily corroded and Varnished turbine oil system after 10 years out of operation will be presented in this presentation.
{"title":"How to commission the turbine oil system that was over years out of operation? Can heavily corroded and deposited turbine oil systems be restored","authors":"Tomás Klíma, W. Majka","doi":"10.24053/tus-2022-0030","DOIUrl":"https://doi.org/10.24053/tus-2022-0030","url":null,"abstract":"Preparation of rotating machinery oil system plays very important role in commissioning process and defines if commissioning process of the turbine brings some troubles. Moreover, future maintenance and operation is very much affected if oil system cleanliness is underestimated and machine commissioned without following complex cleaning procedure. Only standard displacement flush is not effective when system is corroded, where Varnish is agglomerated, pipe assembly done on site with lack of proper care. However, high machine availability and zero breakdowns is nowadays the main goal in every industry sectors! How to restore heavily corroded and Varnished turbine oil system after 10 years out of operation will be presented in this presentation.","PeriodicalId":53690,"journal":{"name":"Tribologie und Schmierungstechnik","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47079058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lubrication is crucial for a sustainable operation of any machinery. A sustainable application of lubricants requires the avoidance of any waste, lubricants should not be exchanged long before their service life has ended. This refers especially to those applications where high operation temperatures are reducing the service life and require a huge consumption of lubricants. Therefore, to fulfil the requirement of sustainability a prediction of the service life at elevated temperatures is crucial. At elevated temperatures the service life of lubricants is limited by thermal aging. This results from a chemical reaction of components of the grease with the oxygen of the ambient air. Such a process follows the Arrhenius equation of chemical kinetics and is given by a straight line in a so-called Arrhenius plot. The slope of the line in the Arrhenius plot is given by the activation energy EA. The FAG FE9 test run is a typical method to assess the service life of a lubricating grease in bearings at elevated temperatures. The test is performed at the upper temperature limit of the grease and gives the service life at this maximum temperature. Once the activation energy EA is available the service life at any other temperature may be calculated. Since the temperature of Abstract *Frank Reichmann CARL BECHEM GMBH, Hagen, Germany the FE9 test run is usually the upper temperature limit the operation temperature is usually lower. Once the calculation start from a high temperature in direction a lower temperature low figures of activation energy EA are resulting in conservative service lives, as it is displayed in in this paper. In case of high figures of the activation energy EA the calculated service life becomes too high what may result in bearing failures. With FE9 test runs at different temperatures an activation energy EA = 75 kJ/mol was found for a reference grease. Laboratory methods to determine the activation energy do usually result is much higher figures. For example, HP-DSC test with this reference grease resulted in an activation energy EA > 100 kJ/mol, mostly it was even EA > 120 kJ/mol. Such a result will lead to unrealistic high calculated service lives. An activation energy of EA = 75 kJ/mol is basically a proper assumption for the calculation of service life of most greases. Generally it is always recommended to estimate a low activation energy.
润滑对于任何机械的可持续运行都至关重要。润滑剂的可持续使用需要避免任何浪费，润滑剂在使用寿命结束前不久不应进行更换。这尤其指的是那些高操作温度会降低使用寿命并需要消耗大量润滑剂的应用。因此，为了满足可持续性的要求，预测高温下的使用寿命至关重要。在高温下，润滑剂的使用寿命受到热老化的限制。这是润滑脂成分与环境空气中的氧气发生化学反应的结果。这样的过程遵循化学动力学的阿伦尼斯方程，由所谓的阿伦尼斯图中的一条直线给出。Arrhenius图中的线的斜率由活化能EA给出。FAG FE9试运行是评估轴承中润滑脂在高温下使用寿命的典型方法。测试在润滑脂的温度上限下进行，并给出该最高温度下的使用寿命。一旦激活能EA可用，就可以计算在任何其他温度下的使用寿命。由于Abstract*Frank Reichmann CARL BECHEM GMBH，Hagen，Germany的FE9测试运行的温度通常是温度上限，因此操作温度通常较低。如本文所示，一旦计算从高温开始，激活能EA的低温低数值将导致保守的使用寿命。在激活能EA的高数值的情况下，计算的使用寿命变得过高，这可能导致轴承故障。在不同温度下进行FE9试验时，发现参考润滑脂的活化能EA=75 kJ/mol。实验室测定活化能的方法通常会得到更高的结果。例如，使用该参考润滑脂进行的HP-DSC测试导致活化能EA>100 kJ/mol，大多数情况下甚至是EA>120 kJ/mol。这样的结果将导致不切实际的高计算使用寿命。EA=75kJ/mol的活化能基本上是计算大多数润滑脂使用寿命的适当假设。通常，总是建议估计低激活能。
{"title":"A practical Approach to predict Service Life and Re-lubrication Rate of Grease in Rolling Bearings","authors":"F. Reichmann","doi":"10.24053/tus-2022-0027","DOIUrl":"https://doi.org/10.24053/tus-2022-0027","url":null,"abstract":"Lubrication is crucial for a sustainable operation of any machinery. A sustainable application of lubricants requires the avoidance of any waste, lubricants should not be exchanged long before their service life has ended. This refers especially to those applications where high operation temperatures are reducing the service life and require a huge consumption of lubricants. Therefore, to fulfil the requirement of sustainability a prediction of the service life at elevated temperatures is crucial. At elevated temperatures the service life of lubricants is limited by thermal aging. This results from a chemical reaction of components of the grease with the oxygen of the ambient air. Such a process follows the Arrhenius equation of chemical kinetics and is given by a straight line in a so-called Arrhenius plot. The slope of the line in the Arrhenius plot is given by the activation energy EA. The FAG FE9 test run is a typical method to assess the service life of a lubricating grease in bearings at elevated temperatures. The test is performed at the upper temperature limit of the grease and gives the service life at this maximum temperature. Once the activation energy EA is available the service life at any other temperature may be calculated. Since the temperature of Abstract *Frank Reichmann CARL BECHEM GMBH, Hagen, Germany the FE9 test run is usually the upper temperature limit the operation temperature is usually lower. Once the calculation start from a high temperature in direction a lower temperature low figures of activation energy EA are resulting in conservative service lives, as it is displayed in in this paper. In case of high figures of the activation energy EA the calculated service life becomes too high what may result in bearing failures. With FE9 test runs at different temperatures an activation energy EA = 75 kJ/mol was found for a reference grease. Laboratory methods to determine the activation energy do usually result is much higher figures. For example, HP-DSC test with this reference grease resulted in an activation energy EA > 100 kJ/mol, mostly it was even EA > 120 kJ/mol. Such a result will lead to unrealistic high calculated service lives. An activation energy of EA = 75 kJ/mol is basically a proper assumption for the calculation of service life of most greases. Generally it is always recommended to estimate a low activation energy.","PeriodicalId":53690,"journal":{"name":"Tribologie und Schmierungstechnik","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44383703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Research indicates that there are two approaches to Electric Vehicle (EV) liquid cooling: direct and indirect. Direct liquid cooling involves direct contact between the coolant and the battery pack. Indirect liquid cooling requires a medium in between the battery pack and the coolant, preventing direct contact. Many prominent EV manufacturers have adopted indirect liquid cooling for example Tesla, and GM in North America. Currently, shelf coolants used for Internal Combustion Engines (ICE) are being used in many EV vehicles for indirect cooling. One of the challenges is absence of ASTM test methods for evaluating EV coolants. Some operators have used copper wires for generating deposits by employing voltage to test low conductivity EV coolants. Dober long ago realized that copper and aluminum will be the main components of EV engines hence used copper wire under high temp and pressure to show differentiation among coolants. The present paper focuses on Dober-in-house test Parr reactor methodology for comparing electrical conductivities, pH and additive depletion of various coolants thereby showing meaningful trends with time and temperature. This ultimately helps in developing new generation EV coolants. It is concluded that low electrical conductivity along with robust corrosion inhibition package is needed for optimum performance of EV coolants.
{"title":"Development of Next Generation EV Coolant","authors":"Govind Khemchandani","doi":"10.24053/tus-2022-0029","DOIUrl":"https://doi.org/10.24053/tus-2022-0029","url":null,"abstract":"Research indicates that there are two approaches to Electric Vehicle (EV) liquid cooling: direct and indirect. Direct liquid cooling involves direct contact between the coolant and the battery pack. Indirect liquid cooling requires a medium in between the battery pack and the coolant, preventing direct contact. Many prominent EV manufacturers have adopted indirect liquid cooling for example Tesla, and GM in North America. Currently, shelf coolants used for Internal Combustion Engines (ICE) are being used in many EV vehicles for indirect cooling. One of the challenges is absence of ASTM test methods for evaluating EV coolants. Some operators have used copper wires for generating deposits by employing voltage to test low conductivity EV coolants. Dober long ago realized that copper and aluminum will be the main components of EV engines hence used copper wire under high temp and pressure to show differentiation among coolants. The present paper focuses on Dober-in-house test Parr reactor methodology for comparing electrical conductivities, pH and additive depletion of various coolants thereby showing meaningful trends with time and temperature. This ultimately helps in developing new generation EV coolants. It is concluded that low electrical conductivity along with robust corrosion inhibition package is needed for optimum performance of EV coolants.","PeriodicalId":53690,"journal":{"name":"Tribologie und Schmierungstechnik","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46806393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Against the background of EU legislation with regard to CO2 emissions, a development trend towards higher geometric compression is emerging for gasoline engines. In principle, this leads – especially in combination with high mean pressure at low engine speed – to a higher pre-ignition tendency, well known as low speed pre-ignition (LSPI). The worldwide use of engine families with different fuel and oil quality represents an additional challenge, which has to be ensured within the scope of series development. IAV has extensive expertise and methodical approaches to minimize the risk of pre-ignition starting in the preliminary development through to series application and to avoid engine damage in the field. The definition and phenomenology of pre-ignition are presented. The presentation highlighted thermodynamic aspects as well as influences from operating agents and engine design. By using the IAV enthalpy approach, it is possible to evaluate designed engines objectively. This knowledge can also be used in the development of new engines concepts. Finally, a test method is presented which is used for the final assurance of the operational stability even in the case of stochastically occurring pre-ignition.
{"title":"Pre-ignition phenomena in the tension field between operating agents and thermodynamic boundary conditions","authors":"Thomas Emmrich, K. Herrmann, M. Guenther","doi":"10.24053/tus-2022-0026","DOIUrl":"https://doi.org/10.24053/tus-2022-0026","url":null,"abstract":"Against the background of EU legislation with regard to CO2 emissions, a development trend towards higher geometric compression is emerging for gasoline engines. In principle, this leads – especially in combination with high mean pressure at low engine speed – to a higher pre-ignition tendency, well known as low speed pre-ignition (LSPI). The worldwide use of engine families with different fuel and oil quality represents an additional challenge, which has to be ensured within the scope of series development. IAV has extensive expertise and methodical approaches to minimize the risk of pre-ignition starting in the preliminary development through to series application and to avoid engine damage in the field. The definition and phenomenology of pre-ignition are presented. The presentation highlighted thermodynamic aspects as well as influences from operating agents and engine design. By using the IAV enthalpy approach, it is possible to evaluate designed engines objectively. This knowledge can also be used in the development of new engines concepts. Finally, a test method is presented which is used for the final assurance of the operational stability even in the case of stochastically occurring pre-ignition.","PeriodicalId":53690,"journal":{"name":"Tribologie und Schmierungstechnik","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49250476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tobias Schick, Jochen Hörer, Klaus Ellenrieder, Karl-Heinz Blum, K. Schmitz
In this work, a novel oil aging test-rig based on a real hydraulic system is introduced. This device allows an accelerated fluid-aging rate under high hydraulic loads. Furthermore, it is possible to vary the operating parameters to evaluate the different factors that influence the aging behavior of hydraulic fluids. Oil samples, which are aged under different conditions, are analyzed using FTIR to estimate the rate of aging using the degradation process of Zinc dialkyl dithiophosphate (ZDDP). The results show a clear aging behavior dependent on different operating parameters in hydraulics. In addition to the degradation of ZDDP, the depletion of the phenolic antioxidant (AO) and the formation of a varnish film on metallic surfaces can be observed.
{"title":"Sensitivity analysis of operating parameters in hydraulic systems with respect to the aging of hydraulic fluids","authors":"Tobias Schick, Jochen Hörer, Klaus Ellenrieder, Karl-Heinz Blum, K. Schmitz","doi":"10.24053/tus-2022-0028","DOIUrl":"https://doi.org/10.24053/tus-2022-0028","url":null,"abstract":"In this work, a novel oil aging test-rig based on a real hydraulic system is introduced. This device allows an accelerated fluid-aging rate under high hydraulic loads. Furthermore, it is possible to vary the operating parameters to evaluate the different factors that influence the aging behavior of hydraulic fluids. Oil samples, which are aged under different conditions, are analyzed using FTIR to estimate the rate of aging using the degradation process of Zinc dialkyl dithiophosphate (ZDDP). The results show a clear aging behavior dependent on different operating parameters in hydraulics. In addition to the degradation of ZDDP, the depletion of the phenolic antioxidant (AO) and the formation of a varnish film on metallic surfaces can be observed.","PeriodicalId":53690,"journal":{"name":"Tribologie und Schmierungstechnik","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47618056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The established process for oil condition monitoring is to periodically take a sample and have it analysed in an oil laboratory. These laboratory measurements are governed by various technical standards (ASTM,DIN etc.) and customers rely on this periodic data to react to oil condition trends and/or step functions, to plan servicing and maintenance and to reduce asset downtime from failure. Real-time oil condition monitoring systems based on dielectric or impedance analysis of the oil have been available for some time but they only provide summary parameters that are hard to interpretate as they do not correlate with the laboratory oil analysis. In this paper we discuss the development of Spectrolytic’s Oil Condition Monitoring systems (FluidInspectIR®) and how, by working closely with our customers, we have developed a robust and affordable range of oil condition monitoring systems that gives our clients meaningful and understandable real time data of the same parameters and in the same units as they are commonly receive it from their oil laboratory analysis. These systems provide the customer the comfort of having quantitative and accurate key oil condition data at the touch of a button, while still utilising their standard practices through oil laboratory measurement to validate the predicted key oil parameters by the inline system.
{"title":"How to get Lab Equivalent Oil Analysis 24/7","authors":"Neil Conway, C. Giebeler, B. Wiesent","doi":"10.24053/tus-2022-0025","DOIUrl":"https://doi.org/10.24053/tus-2022-0025","url":null,"abstract":"The established process for oil condition monitoring is to periodically take a sample and have it analysed in an oil laboratory. These laboratory measurements are governed by various technical standards (ASTM,DIN etc.) and customers rely on this periodic data to react to oil condition trends and/or step functions, to plan servicing and maintenance and to reduce asset downtime from failure. Real-time oil condition monitoring systems based on dielectric or impedance analysis of the oil have been available for some time but they only provide summary parameters that are hard to interpretate as they do not correlate with the laboratory oil analysis. In this paper we discuss the development of Spectrolytic’s Oil Condition Monitoring systems (FluidInspectIR®) and how, by working closely with our customers, we have developed a robust and affordable range of oil condition monitoring systems that gives our clients meaningful and understandable real time data of the same parameters and in the same units as they are commonly receive it from their oil laboratory analysis. These systems provide the customer the comfort of having quantitative and accurate key oil condition data at the touch of a button, while still utilising their standard practices through oil laboratory measurement to validate the predicted key oil parameters by the inline system.","PeriodicalId":53690,"journal":{"name":"Tribologie und Schmierungstechnik","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47893545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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