Relevant bibliographies by topics / Flywheel tooth angle errors

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Flywheel tooth angle errors'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Flywheel tooth angle errors"

1

Zhao, Ning, and Hui Guo. "Research on Meshing of Face Gear Drive under Errors of Alignment and Machining." Applied Mechanics and Materials 44-47 (December 2010): 1948–51. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.1948.

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The coordinate systems for cutting face gears and for meshing of face gear drive with involute cylindrical pinion. The tooth surface equation of face gear with machining errors is deviated, such as change of shaft angle, change of shortest distance between face gear and cutter tool axes, helix angle of cutter tool. Tooth contact analysis applied in the paper considered with the alignment error of the driving system. The tooth contact path and the transmission error of the face gear drive were simulated through the tooth contact analysis for different alignment errors and machining errors. The
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Tang, Jiqiang, Ying Wang, Bin Liu, and Xiaofeng Zhao. "Suppression of high-frequency disturbance to satellite by Vernier-gimballing magnetically suspended flywheel." Transactions of the Institute of Measurement and Control 41, no. 9 (2018): 2465–74. http://dx.doi.org/10.1177/0142331218801161.

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The high-frequency disturbance acting on a satellite decreases the satellite’s stability and pointing precision. The common flywheel is generally used to suppress it, but the number of the required flywheels is usually five or more and that will make the satellite overweight. The magnetically suspended flywheel (MSFW) with Vernier-gimballing capability (Vernier-gimballing MSFW) is proposed in this paper to suppress the high-frequency disturbance. In addition, a comparative simulation research has been done for a satellite controlled by Vernier-gimballing MSFW or reaction FW. It is worth noting
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Koumpia, Effimia, Athanasios E. Athanasiou, Theodore Eliades, and Michael Knösel. "Precision of a Reflectance Spectrophotometer in Measuring Anterior Tooth Color." Open Dentistry Journal 12, no. 1 (2018): 884–95. http://dx.doi.org/10.2174/1874210601812010884.

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Background: Intraorally, a common instrumental approach for measuring tooth color is reflectance spectrophotometry. Objective: To evaluate the precision of a reflectance spectrophotometer in accurately measuring anterior tooth color. Methods: The twelve labial surfaces of the anterior teeth of sixteen patients were measured spectrophotometrically (SpectroShadeTM Micro) on three non-consecutive days (1st, 2nd, 8th). Tooth color was converted to L*, a* and b* colorimetric values; intra-examiner repeatability was assessed in ΔΕ-units between two same day repeated measurements. Intra-examiner repr
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Todorovic, Aleksandar, Dejan Lisjak, Vojkan Lazic, and Aleksandra Spadijer-Gostovic. "Possible errors during the optical impression procedure." Serbian Dental Journal 57, no. 1 (2010): 30–37. http://dx.doi.org/10.2298/sgs1001030t.

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Introduction. Modern technologies offer a range of benefits and significantly improve specific therapeutic procedures in dentistry. However, despite gaining experience and training there are still some mistakes in their implementation. The aim of this study was to describe the most common errors during intraoral scanning, 'optical impression' procedure, during CAD-CAM technology for production of dental restorations. Material and Methods. Cerec? 3D CAD-CAM system for one visit tooth reconstruction by inlays, onlays, endocrowns, half and complete crowns and veneers from the ceramic material was
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Wu, Yu Ren, and Van The Tran. "Lead Crowning and Anti-Twist for Tooth Flank of a Heat Treated Helical Gear on Internal CNC Honing Machine." Applied Mechanics and Materials 799-800 (October 2015): 554–59. http://dx.doi.org/10.4028/www.scientific.net/amm.799-800.554.

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The internal gear honing is more popular than the external gear honing by its advantages such as higher contact surface and easier correct profile errors. It is usually applied for modifying the gear surface to compensate for the distortions after heat treatment process. However, the lead crowning and anti-twist tooth flank of a helical gear on internal CNC gear honing has not studied yet. Therefore, a novel method for lead crowning tooth flank of work gear surfaces is proposed by using a linear swivel angle function of the honing wheel and a variable pressure angle (VPA) honing wheel is also
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Meuleman, P. Klein, D. Walton, K. D. Dearn, D. J. Weale, and I. Driessen. "Minimization of transmission errors in highly loaded plastic gear trains." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 221, no. 9 (2007): 1117–29. http://dx.doi.org/10.1243/09544062jmes439.

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Transmission errors (TEs) are an important source of unwanted noise and vibration in gear drives. Errors can result from geometrical inaccuracies and from elastic deformations. Plastic drives are often loaded in a way that produces high deflections relative to steel gears, and the elastic component of TE is relatively more important. Furthermore, plastic gears are often run in mesh with gears made from steel or other metals. In this case there is a large difference in tooth stiffness, which leads to unusual TE problems. The current paper discusses the origins of elastic TEs and means of their
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Wang, Zhi, Qing Chen, Jia Chun Lin, and Li Li Yang. "Study of the Dynamic Behavior of Face Gear Transmission System." Applied Mechanics and Materials 268-270 (December 2012): 1063–66. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.1063.

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According to the gear meshing theory, the tooth surface equation of orthogonal face gear is derived and the mathematical model is established. Also the model was provided for simulating the bevel gear transmission system concerning the time variant stiffness and face gears errors under static load and cyclic loads. Through the model the computerized analysis of speed, angle and acceleration of gear real tooth surface could be accomplished. Rattle as discussed under condition of different static loads and the constant cyclic loads.
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Zhou, Jiaming, Fengyan Yi, Xiangyang Xu, Junbin Lai, Yanfang Liu, and Peng Dong. "Effect of Tooth Profile Modification on Dynamic Tooth Load of Planetary Gear Train." Shock and Vibration 2019 (December 10, 2019): 1–20. http://dx.doi.org/10.1155/2019/8156971.

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This paper aims at investigating the effects of tooth profile modification (TPM) on the dynamic response of planetary gear train (PGT). A numerical model is carried out to calculate two major excitation sources of PGT, time-varying mesh stiffness (TVMS), and transmission errors (TEs). On this basis, a linear time-varying dynamic model of a PGT considering TVMS, TEs, and TPM is developed. Dynamic deviation factor is further introduced to describe the dynamic response of the PGT. In this paper, TPM is only applied to the external meshes firstly. Effects of TPM parameters, such as amount of TPM,
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Wang, Hai Xia, Jia Dong Chang, and Lei Zhang. "Effect of Assembly Error on the Meshing Characteristic of Spacial Beveloid Gears." Advanced Materials Research 479-481 (February 2012): 2533–39. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.2533.

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For the beveloid gears with intersecting axis and crossed axis coexisted in the marine gearbox with small down angle, contact analysis of the meshing gear pair taken the assembly error into consideration is proposed based on the nonlinear finite element analysis software Abaqus. Considering the central distance error, axial position error and the angle error, the FE model of beveloid gear pair with intersecting axis and crossed axis were established, respectively, and the tooth contact stress, the maximum influence factor and transmission error were calculated. The effects of these errors, the
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Wan, Peng, Jun Jie Guo, and Hai Tao Li. "Study on the Method of Error Identification and Compensation for Gear Measuring Center." Advanced Materials Research 482-484 (February 2012): 1821–28. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.1821.

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Gear Measuring Center(GMC) is commonly used to test error of the tooth surface of the gear, whose geometric accuracy directly impacts on the accuracy of measurement. How to quickly and accurately detect space geometric error of the measuring machine and compensate becomes the essential means of high-precision measurements. According to the problem above, in the paper, three-beams laser detection technology is proposed. The detection of the geometric errors of the linear axis was achieved. The accurate measurement for the position and attitude of the plane mirror on measurement seat was achieve
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Dissertations / Theses on the topic "Flywheel tooth angle errors"

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Romeling, Gustav. "Improving Misfire Detection Using Gaussian Processes and Flywheel Error Compensation." Thesis, Linköpings universitet, Fordonssystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-132721.

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The area of misfire detection is important because of the effects of misfires on both the environment and the exhaust system. Increasing requirements on the detection performance means that improvements are always of interest. In this thesis, potential improvements to an existing misfire detection algorithm are evaluated. The improvements evaluated are: using Gaussian processes to model the classifier, alternative signal treatments for detection of multiple misfires, and effects of where flywheel tooth angle error estimation is performed. The improvements are also evaluated for their suitabili
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Conference papers on the topic "Flywheel tooth angle errors"

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Zhu, Caichao, Chaosheng Song, Teik C. Lim, and Tao Peng. "Effects of Assembly Errors on Crossed Beveloid Gear Tooth Contact and Dynamic Response." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47413.

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It is known that the tooth flank geometry, assembly errors and the operating conditions of a gear pair have significant influence on tooth contact, load distribution and dynamic response. However, the study of the effects of assembly errors on the mesh characteristics and dynamic response for crossed beveloid gears has been limited due to the complicated geometry and time-varying mesh characteristics. In this study, three types of assembly errors including shaft angle, offset and gear axial position error are examined based on a synthesized mesh model and a three-dimensional elastically couple
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Uematsu, Seizo, Sung-Ki Lyu, Donald R. Houser, Ju-Suck Lim, and Long Lu. "A Study on Reducing the Gear Tooth Profile Error by Finish Roll Forming." 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-48059.

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This paper deals with the tooth profile error of spur gears that have been finished by roll forming. First, we present experimental data that confirms that the tooth profile error is a synthesis of a concave error and a pressure angle error. Since various types of tooth profile errors appear in the experiments, evaluation parameters are introduced for rolling gears so that profile quality may be objectively evaluated. Using these evaluation parameters, the relationship among the tooth profile error, the addendum modification factor (A. M. factor), and the tool loading force are verified. The c
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Zhang, Y., and Z. Fang. "A Tooth Contact Analysis Model for Crossed Axis Helical Gears Under Load." In ASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-detc/mech-1201.

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Abstract This paper presents an approach for the analysis of tooth contact and load distribution of helical gears with crossed axis. The approach is based on a tooth contact model that accommodates the influence of tooth profile modifications, gear manufacturing errors and tooth surface deformation on gear mesh quality. In the approach, the tooth contact load is assumed to be distributed along the tooth surface line that coincides with the relative principal direction of the contacting tooth surfaces. The model in this paper provides a quantitative analysis on gear transmission errors, contact
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4

Kotorii, H. "Tooth Surface Fatigue of AISI9310 Steel Spur Gears." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0096.

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Abstract With a JIS 0 class Spur Gears of AISI9310 steel, module 4, presure angle 25 degree tooth profile, the numbers of pinion teeth 21 / gear teeth 29 carburized and tooth surface hardness HRc 59, the relationships of the load and the service life (S-N) diagram were investigated by running test on the power-circulated type gear tester. MIL-L-23699 equivalent synthetic oil at 50° C were fed at a ratio of 0.8 l/min and circumferential velocity of 8.8 m/sec. Also the running performance of the gears, variation of tooth profile errors, affairs of damage, etc. were examined. Types of tooth surfa
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Zhu, Caichao, Haixia Wang, Mingyong Liu, Xuesong Du, and Chaosheng Song. "Coupled Tooth Contact Analysis of Intersected Beveloid Gears for Marine Transmissions." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12231.

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Beveloid gears are widely applied in fields like ships, automobiles and industrial precision transmissions. In this paper, the formulas of the beveloid gear tooth surface used in marine transmissions were derived and a mesh model for the intersected beveloid gear pair was setup. Then loaded tooth contact analysis was performed using the finite element method considering the coupling of the assembly errors and the elastic deformation of tooth surface. Through the analysis, the influences of assembly errors on contact patterns, mesh force and tooth surface deformations were investigated. In a fu
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Garci´a-Masia´, Carlos, and Juan D. Morillas-A´lvarez. "Mathematical Model for Parametric Tooth Surface of Cylindrical Gears Based on Kinematic Synthesis." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34035.

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A generalized approach for parametrizing conjugate tooth surfaces in cylindrical gears is presented in this work. Developed are the polynomials expressions to define the tooth surfaces of pinion and gear based on kinematics synthesis for planar gears. The polynomials expressions incorporate the motion generation (points or positions of precision) and function of transmission errors. It is interesting to note that if the desired pressure angle for the tooth profile is constant, the output polynomial of profile becomes a conventional involute. Polynomials expressions are given for the profile mo
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Podzharov, Evgueni I. "Analysis of Geometric Parameters of the Tool Which Ensure the Maximum Gear Tooth Profile Accuracy." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5831.

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Abstract An analysis of possibilities for the selection of tool geometry parameters was made to reduce tooth profile errors during grinding of gears by different methods. The selection of parameters was based on the analysis of the grid diagram of a gear and a rack. Some formulas and graphs are presented for the selection of the pressure angle, module and addendum of the rack-tool. The results of grinding of experimental gears confirm the theoretical analysis.
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Kolivand, M., and A. Kahraman. "An Ease-Off Based Method for Loaded Tooth Contact Analysis of Hypoid Gears Having Local and Global Surface Deviations." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86786.

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Manufacturing errors typically cause real (measured) spiral bevel and hypoid gear surfaces to deviate from the theoretical ones globally. Tooth surface wear patterns accumulated through the life span of the gear set are typically local deviations that are aggravated especially in case of edge contact conditions. An accurate and practical methodology based on ease-off topography is proposed in this study to perform loaded tooth contact analysis of spiral bevel and hypoid gears having both types of local and global deviations. It starts with definition of the theoretical pinion and gear tooth su
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Nakae, Masahiko, Kazunori Hidaka, Yasutsune Ariura, Toshinori Matsunami, and Masao Kohara. "Gear Finishing With a Nylon Lap." 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-48034.

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The objective of this research is to develop a new lapping process which can efficiently make tooth flanks of hardened steel gears smooth as a mirror. The lapping is carried out using a nylon helical gear as a lap and a simple mechanical device. This paper first shows the lapping machine designed and manufactured by the authors and the procedure and principle of the lapping. And as a result of the lapping tests, it becomes clear that the process can make tooth flanks of hardened steel gears smooth in a short time and it is important to carry out the lapping for a short time using a nylon gear
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Miyamura, Hiromi, Yoshikatsu Shibata, Mizuho Inagaki, and Takayuki Aoyama. "Design Method for Optimizing Contact Ratio of Hypoid Gears." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12761.

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Innumerable solutions can be obtained when the pitch surface of a hypoid gear is solved from the requirements of two cones. The pitch angle is determined by the Gleason method based on the idea that the tooth lengthwise curvature corresponds to the cutter radius. This study proposes a new design method that can optimize the contact ratio using the pitch angle, using the new tooth geometry advocated by Honda. The balance of the contact ratios of the convex and concave sides of a gear can be optimized by designing the pitch angle. By optimizing the contact ratio, noise and vibration performance
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