Relevant bibliographies by topics / FZG test rig

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'FZG test rig'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "FZG test rig"

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Durand de Gevigney, J., C. Changenet, F. Ville, and P. Velex. "Thermal modelling of a back-to-back gearbox test machine: Application to the FZG test rig." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 226, no. 6 (2012): 501–15. http://dx.doi.org/10.1177/1350650111433243.

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A thermal model of a back-to-back gear test rig relying on a network approach is presented in which the predictions of temperatures and power losses are coupled. The numerical findings are in good agreement with the measurements for transient regimes on a FZG test rig and it is demonstrated that the proposed simulation is reliable. A number of results are presented which illustrate the influence of the pinion and gear immersion depths. It is found that, in certain conditions, the classic isothermal method for estimating integral temperatures is questionable because the actual bulk temperature
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Navet, P., C. Changenet, F. Ville, D. Ghribi, and J. Cavoret. "Thermal Modeling of the FZG Test Rig: Application to Starved Lubrication Conditions." Tribology Transactions 63, no. 6 (2020): 1135–46. http://dx.doi.org/10.1080/10402004.2020.1800155.

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Höhn, B. R., P. Oster, and U. Schedl. "Pitting load capacity test on the FZG gear test rig with load-spectra and one-stage investigations." Tribotest 5, no. 4 (1999): 417–30. http://dx.doi.org/10.1002/tt.3020050407.

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Spiegelberg, C., and M. Christie. "Torque loss in spur gears with interference." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 217, no. 5 (2003): 385–95. http://dx.doi.org/10.1243/135065003322445304.

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Gears with interference (zero backlash) are used in robots and other precision equipment. The reason for using interference gearing is to improve positioning and motion control. It is then also desirable to compensate for the friction losses and therefore it is important to model the friction losses accurately. In this paper, results from a model for simulating spur gears with interference are compared with results from a test rig for spur gears with interference. FZG gears are used both in the test rig and in the simulations. Brief descriptions of the test rig and the simulation model are giv
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Höhn, B. R., K. Michaelis, C. Eberspächer, and L. Schlenk. "A scuffing load capacity test with the FZG gear test rig for gear lubricants with high EP performance." Tribotest 5, no. 4 (1999): 383–90. http://dx.doi.org/10.1002/tt.3020050405.

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Bergstedt, Edwin, Jiachun Lin, and Ulf Olofsson. "Influence of gear surface roughness on the pitting and micropitting life." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 24 (2020): 4953–61. http://dx.doi.org/10.1177/0954406220931541.

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Pitting and micropitting are the two main gear rolling contact fatigue modes. It is widely accepted that micropitting will lead to pitting; however, the relationship between pitting and micropitting life needs further investigation. In this work, micropitting and pitting tests were performed on an FZG back-to-back test rig using standard FZG PT-C and GF-C gears. The gear tooth profile change due to micropitting and pitting damage was measured in situ in the gearbox using a profilometer after each test. The gear surface roughness parameters were calculated from the measured tooth profile. A Gau
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Neurouth, Adrien, Christophe Changenet, Fabrice Ville, and Michel Octrue. "Influence of Rolling Element Bearing Modeling on the Predicted Thermal Behavior of the FZG Test Rig." Tribology Transactions 60, no. 4 (2016): 753–61. http://dx.doi.org/10.1080/10402004.2016.1208856.

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Fürstenzeller, Adam, František Tóth, Milan Kadnár, Juraj Rusnák, and Miroslav Bošanský. "Comparison of PVD Coatings Nacro4 and TIALN + DLC Deposited on High Contact Ratio Gearing Interacting With Conventional and Ecological Lubricants." Acta Technologica Agriculturae 22, no. 2 (2019): 48–55. http://dx.doi.org/10.2478/ata-2019-0009.

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Abstract Proposed paper deals with experimental tests performed on the Nieman M01 FZG test rig. Experiments were carried out in accordance with STN 65 6280 standard for FZG scuffing tests, from which load values for each load level were obtained. HCR gears made of 16MnCr5 material were utilized during experimental tests. Gear surface was deposited by PVD coatings of nACRo4 and TiAlN + DLC. Conventional lubricant MADIT PP 90H and biological lubricant OMW Biogear S150 were selected for lubrication environments. Aim of the experimental tests lied in application and comparison of PVD coatings depo
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Magalhães, Luís, Ramiro Martins, Ivo Oliveira, and Jorge Seabra. "Comparison of tooth profiles and oil formulation focusing lower power losses." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 226, no. 6 (2012): 529–40. http://dx.doi.org/10.1177/1350650112439260.

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Environmental awareness, lower consumption of raw materials and longer life of equipment are main concerns nowadays and are leading to the research and development of lubricants and equipment to access those requirements. In this study, the power loss performance of three different tooth profile geometries, developed with the purpose of decreasing power losses while keeping the predicted life, were tested and evaluated in a FZG test rig. The path to reduce power losses was based on the decrease of the module, the increase of the helix angle and increase of the addendum modification coefficient
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Michalczewski, Remigiusz, Witold Piekoszewski, Marian Szczerek, Waldemar Tuszynski, and Maksim Antonov. "The Rolling Contact Fatigue of PVD Coated Spur Gears." Key Engineering Materials 527 (November 2012): 77–82. http://dx.doi.org/10.4028/www.scientific.net/kem.527.77.

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The aim of the study was to investigate the resistance to rolling contact fatigue of a C:H:W and MoS2/Ti coated gears. The investigation of rolling contact fatigue was realised by means of a gear test rig using FZG PT C/10/90 pitting test. Four material combinations of gears were tested: wheel and pinion uncoated, wheel and pinion coated, wheel coated and pinion uncoated as well as wheel uncoated and pinion coated. The tests were performed using for lubrication mineral gear oil of API GL-5 performance level and 80W/90 viscosity grade. The results indicate that for the coated/coated pair (pinio
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Dissertations / Theses on the topic "FZG test rig"

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Prakash, del Valle Carlos. "Thermal modelling of an FZG test gearbox." Thesis, KTH, Maskinkonstruktion (Inst.), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-157256.

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Gearboxes are always subject of study in order to increase their efficiency. Energy losses in gear contacts are transformed into heat which is distributed among the gearbox components increasing their temperature. A thermal model of the gearbox brings the opportunity of a deeper understanding of the heat dissipated related to the power losses in the gear contact. A MATLAB program based on ordinary differential equations was developed in order to make a thermal model of an FZG test gearbox. The model is based on a thermal network where each node represents a machine element. The thermal network
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Spaccesi, José Agustín. "Analysis of design requirements for early failure detection in a gear test rig." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280573.

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Gears are the heart of many machines, being its function transform and transmit torque. This work is a study of adequate design requirements, in particular, the best methodology to early detect gear fatigue failure using a gear test rig, an FZG test machine. The study used the widely proved QFD analysis technique that introduces the client in the design process by using a matrix system. All available relevant literature on the subject and interviews with relevant people in the field were sources of information for the development of this technique. In that way, a mapping is presented, showing
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Xinmin, Li. "Efficiency and wear properties of spur gears made of powder metallurgy materials." Doctoral thesis, KTH, Maskinkonstruktion (Inst.), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-187446.

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Powder metallurgy (PM) is usually used in manufacturing parts with complex geometries, such as gears and structural parts. The main attractions of PM are the high rate of material utilization, environmental friendliness of production, economic advantages (especially for complex geometries), and possibility of obtaining lighter components. To find a wide range of applications and compete with regular steel gears, PM gear transmissions should have good transmission efficiency and wear properties. Furthermore, they should have low contact noise and adequate surface fatigue properties. Because of
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Book chapters on the topic "FZG test rig"

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Kobayashi, Shiro, Soo-Ik Oh, and Taylan Altan. "Axisymmetric Isothermal Forging." In Metal Forming and the Finite-Element Method. Oxford University Press, 1989. http://dx.doi.org/10.1093/oso/9780195044027.003.0012.

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According to Spies, the majority of forgings can be classified into three main groups. The first group consists of compact shapes that have approximately the same dimensions in all three directions. The second group consists of disk shapes that have two of the three dimensions (length and width) approximately equal and larger than the height. The third group consists of the long shapes that have one main dimension significantly larger than the two others. All axially symmetric forgings belong to the second group, which includes approximately 30% of all commonly used forgings. A basic axisymmetric forging process is compression of cylinders. It is a relatively simple operation and thus it is often used as a property test and as a preforming operation in hot and cold forging. The apparent simplicity, however, turns into a complex deformation when friction is present at the die–workpiece interface. With the finite-element method, this complex deformation mode can be examined in detail. In this chapter, compression of cylinders and related forming operations are discussed. Since friction at the tool–workpiece interface is an important factor in the analysis of metal-forming processes, this aspect is also given particular consideration. Further, applications of the FEM method for complex-shaped dies are shown in the examples of forging and cabbaging. Finite-element discretization with a quadrilateral element is similar to that given in Chap. 8. The cylindrical coordinate system (r, ϑ, z) is used instead of the rectangular coordinate system. The element is a ring element with a quadrilateral cross-section, as shown in Fig. 9.1. The ξ and η of the natural coordinate system vary from −1 to 1 within each element.
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Keefer, Robert F. "Micronutrients." In Handbook of Soils for Landscape Architects. Oxford University Press, 1999. http://dx.doi.org/10.1093/oso/9780195121025.003.0016.

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Micronutrients needed by plants are Cu, Fe, Mn, Zn, B, Mo, Cl, Ni, Co, V, Si, and Na. The required amounts of each of these elements is very small but still essential for desirable plant growth and reproduction. These elements must be applied to soils cautiously for the range between deficient and toxic is very small. It is unwise to use a fertilizer containing all of these micronutrients. Any one of them may already be high enough in soils to cause toxicity from that particular element. If a micronutrient is suspected of being deficient, it would be wise to get soil tests and plant tissue tests to corroborate your suspicions. If a micronutrient is deficient, one should apply only the amount recommended but no more. Sometimes a toxicity of an element is more difficult to correct than a deficiency. Copper, iron, manganese, cobalt, and zinc can be present in soils as (a) several types of precipitates, (b) adsorbed onto the surface of soil particles, (c) present in primary minerals (rocks) and secondary minerals (clays), and (d) present as complex ring compounds. These forms may or may not be available to plants. Precipitates of Cu, Fe, Mn, or Zn often form in soils at high pH (after liming Fig. 14.1). This may occur in soils near buildings from the lime used in the mortar. Soil acids dissolve the lime into Ca++ or Mg++ that migrate into the soil raising the pH and cause these micronutrients to precipitate. Often an Fe deficiency is evident, particularly on acid-loving plants, such as azaleas, rhododendrons, or hollies. If this is extensive, the soil near the buildings may need to be replaced. With limited areas, the soil can be acidified by adding elemental S near the plants affected. The elements Cu, Fe, Mn, and Zn can exist as soluble forms or precipitates, depending on the pH of the soil. The soluble forms as cations are present when soils have poor internal drainage (poorly drained soils), whereas the oxides of these elements are present where the soil is well aerated.
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"2. Adhesion of the plasma-polymerized fluorocarbon films to silicon substrates The adhesion properties of the plasma-polymerized FC coatings were determined by using a test, already employed by Yasuda and Sharma [13] (see Fig. 1 and Table 1) in which the silicon substrates coated with plasma FC-films were boiled in a0.9% sodium chloride solution. The FC thin films produced in the processes 1 and 2 were lifted after a very short time (15 minutes). Coatings generated in process 3 were lifted after the second cycle of boiling. The films produced in processes 4 and 5 withstood the complete test procedure. The results are shown in Fig. 3. The poor adhesion of the polymerized films in the first two processes is due to the fact that these processes do not involve a plasma pre-treatment process. The difference between processes 1 and 3 is only in the plasma pre-treatment (process 1 does not contain the pre-treatment step of the silicon surface). The fluorocarbon films deposited by processes 4 and 5 have shown the best adhesion. These test results indicate that the plasma pre-treatment is very important and necessary for a good adhesion of the FC coatings to the silicon surfaces. 2.3. Patterning of FC films 2.3.1. Patterning through resist mask. The patterning of the FC films through a photoresist mask (conventional All resist AR-P351) was examined after deposition for process No. 5. Different coating parameters were investigated to improve the adhesion of the resist to the FC surface. The best adhesion results were obtained using the process parameters, shown in Table 3. Differences in the thickness uniformity of so-deposited resists were in a range below 5%. The samples were etched in a pure oxygen plasma in an RIE-system after the lithography steps (pre-bake, exposure, development, post-bake). A resolution of 2 /xm was obtained. A significant increase in the surface energy was not observed after resist stripping. The sessile contact angle of water was 103°. 2.3.2. Lift-off process for patterning thin plasma polymerized FC films. A lift-off process was also examined to pattern the thin FC films. The lithography steps were used before the plasma polymerization process was carried out (Fig. 2). A standard resist AR-P351 was coated directly onto the Si substrates. After all lithography." In Adhesion Aspects of Thin Films, Volume 1. CRC Press, 2014. http://dx.doi.org/10.1201/b11971-44.

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Conference papers on the topic "FZG test rig"

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Michalczewski, Remigiusz, Marian Szczerek, Waldemar Tuszynski, and Jan Wulczynski. "The Scuffing Resistance of the Coated Tribosystems Lubricated With Ecological Oils." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63432.

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The objective of the paper is to show that thin, hard coatings deposited on heavy-loaded machine components working in a non-conformal contact (e.g. gears) and lubricated with ecological oils, make it possible to increase the service-life of these components. The scuffing resistance was assessed by employing a high-resolution four-ball test method realized in a tester with continuously increasing load. Also another test method — FZG scuffing test — was realized using a back-to-back gear test rig. The test balls and gears were coated with thin, hard TiN and WC/C coatings deposited using arc-vac
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O’Connor, B. M. "The Influence of Additive Chemistry on Gear Micropitting." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/ptg-48125.

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Gear micropitting has been a highly visible issue in selected applications in recent years, most notably in large wind turbine transmissions. Various industry groups have addressed the problem from their own area of expertise. This has included evaluation of the gear design characteristics, surface finishing, the use of special coatings, and lubrication. A common approach to improve the lubrication has been first to increase the viscosity and create thicker films, which, in turn, reduce the amount of surface asperity interaction. Another approach from the lubricant side has been to alter the a
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Choi, Alexander, Tyler Luneski, Zbigniew M. Bzymek, Vito Moreno, and Geri Gonxhe. "A Search for Optimal Friction Resistant Material to Cover Contact Surfaces: A Case Study in the Senior Mechanical Engineering Design Student Project." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65481.

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The University of Connecticut Department of Mechanical Engineering has developed an industry recognized Senior Design Capstone course that provides students the opportunity for a major design experience. This paper will discuss the issues and challenges associated with project demonstrated on the base of the Search for Optimal Friction Resistant Material to Cover Contact Surfaces in an Electric Manual Switch. In order to determine the viability of potential substitute materials, the team produced custom testing rigs to evaluate material wear and corrosion performance. The construction of these
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Kano, Makoto, Yoshiteru Yasuda, Jiping Ye, et al. "Super Low Friction Property of DLC Lubricated With Ester-Containing Oil: Part 1 — Friction Properties Evaluated in Rig Tests." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63920.

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This paper presents a material combination that reduces the friction coefficient markedly to a super low friction regime (below 0.01) under boundary lubrication. Friction tests were conducted with a test rig consisting of three pins pressed against a rotating disc, as shown in Fig. 1. The pins were made of bearing steel AISI52100 and the disc was made of carburized steel SCM415, which was coated with a diamond-like-carbon (DLC) film. The test conditions were as follows. Pins: Fixed, not rotating; DLC: CVD a-C:H, PVD ta-C; Lubricant: 5W-30 API SG Engine oil; Ester-containing oil (PAOES1): Poly
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Hou, J., J. Dubke, K. Barlow, et al. "3D Crack Growth Analysis and Its Correlation With Experiments for Critical Turbine Components Under an International Collaborative Program." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50548.

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Following a reanalysis of the original material data plus supplementary Low Cycle Fatigue (LCF) specimen testing, an Original Equipment Manufacturer (OEM) reduced the low cycle fatigue life limits for a number of turbine components. To ascertain the validity of the new life limits, an international collaborative spin rig test program was initiated to provide more accurate low cycle fatigue life limits. The program covered a broad range of activities including, Finite Element (FE) stress analyses, cyclic spin rig testing, fractographic assessment and fatigue crack growth (FCG) analyses. This pa
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Rautenberg, M., M. Malobabic, A. Mobarak, and M. Abdel Kader. "Design and Testing of a 10KW Steam Turbine for Steam Turbochargers." In ASME 1985 Beijing International Gas Turbine Symposium and Exposition. American Society of Mechanical Engineers, 1985. http://dx.doi.org/10.1115/85-igt-113.

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A Clausius-Rankine-cycle has been proposed to recover waste heat from a piston engine. This waste heat is then used to supercharge the cylinders by means of a steam turbocharger. The advantage of using this steam turbocharger system is to avoid the losses due to the engine back pressure which accompany the use of the conventional exhaust gas turbocharger. The mass flow rate of turbines for steam turbochargers in the range from 1 to 10 kW is about 0.03 to 0.08 kg/s. This implies a special turbine design, characterised by partial admission and supersonic flow, which unfortunately leads to low tu
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D’Ercole, Michele, Giovanni Biffaroni, Francesco Grifoni, Francesco Zanobini, and Paolo Pecchi. "Results and Experience From GE Energy’s MS5002E Gas Turbine Testing and Evaluation." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68053.

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GE Energy’s new gas turbine, the MS5002E, is a 30 MW-class industrial gas turbine for mechanical drive and power generation applications. The MS5002E (fig.1) is the latest in the Frame5 two-shaft family and, while it retains some features from previous versions, the machine has been specifically designed for low environmental impact and high reliability, in direct response to customer demand for high efficiency and availability [1] & [2]. Main features for the MS5002E are: • 32 MW base load power at ISO inlet conditions (no losses); • 36% thermal efficiency; • 11-stage axial compressor and
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Bühlmann, Stefan, Daniela Limacher, Thomas Manyoky, and Mauro Melas. "Laboratory Method to Evaluate Fog Rejection Effectiveness of Hydrophobic Coatings for Steam Turbine Applications." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-77296.

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The application of hydrophobic coatings in steam turbines is expected to partially inhibit the formation of water films on blade surfaces, and consequently reduce the associated efficiency loss and mechanical damage. Since testing coatings in real steam turbines is impractical, a method is presented to assess, under laboratory conditions, the tendency of materials to reject rather than collect water droplets impinging on them. This behavior was demonstrated to poorly correlate with wetting angle measurements which proved the necessity to use a more complex approach. A test rig was therefore us
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Coker, Joseph D., Darryll J. Pines, Paul D. Samuel, and Jason Kiddy. "Fiber Optic Strain Sensor Vibration Separation for Detection of Seeded Faults in Rotorcraft Transmissions." In ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2008. http://dx.doi.org/10.1115/smasis2008-432.

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This paper presents a refined methodology for performing helicopter transmission anomaly detection through the use of vibration separation techniques applied to the output of a fiber optic sensor array. Fiber Bragg grating (FBG) sensors—distributed about the exterior of a planetary gearbox annulus—record the local strain response of the annulus surface due to tooth-mesh interactions. These strain profiles are collected for a number of loading conditions both with and without seeded faults. The profiles are separated and synchronously averaged to illustrate the effect of damage to planetary gea
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Hashemi, Saeed, and William K. Durfee. "Low Friction, Long-Stroke Rolling Diaphragm Cylinder for Passive Hydraulic Rehabilitation Robots." In 2017 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dmd2017-3518.

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Hydraulic actuators are commonly used in mechanical systems, and actuator efficiency is one of the most important factors in these systems [1]. The energy loss to overcome friction force makes the actuator less efficient. Wearable rehabilitation robotics is one of the applications of hydraulic actuators. Hydraulic cylinders deliver the power extracted from the external resources and/or less stroke-affected limbs to the more stroke-affected limbs (Fig. 1). O-ring seal, rolling diaphragm, and gap seal cylinders are three common technologies that have been used in different hydraulic systems for
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