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Relevant bibliographies by topics / Planet load sharing

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Academic literature on the topic 'Planet load sharing'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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Journal articles on the topic "Planet load sharing"

1

Keller, Jonathan, Yi Guo, Zhiwei Zhang, and Doug Lucas. "Comparison of planetary bearing load-sharing characteristics in wind turbine gearboxes." Wind Energy Science 3, no. 2 (2018): 947–60. http://dx.doi.org/10.5194/wes-3-947-2018.

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Abstract. In this paper, the planetary load-sharing behavior and fatigue life of different wind turbine gearboxes when subjected to rotor moments are examined. Two planetary bearing designs are compared – one design using cylindrical roller bearings with clearance and the other design using preloaded tapered roller bearings to support both the carrier and planet gears. Each design was developed and integrated into a 750 kW dynamometer tests, the loads on each planet bearing row were measured and compared to finite-element models. Bearing loads were not equally shared between the set of cylindr

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Xu, Xiangyang, Tianhong Luo, Jiayuan Luo, Xia Hua, and Reza Langari. "Dynamical load sharing behaviors of heavy load planetary gear system with multi-floating components." International Journal of Modeling, Simulation, and Scientific Computing 09, no. 01 (2018): 1850005. http://dx.doi.org/10.1142/s1793962318500058.

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To investigate the dynamical load sharing behaviors of multi-floating components in the heavy load planetary gear system, a multi-floating planetary gear system that includes a floating central component and a quasi-floating planet flexible supporting pin is employed. Then a 21 degree of freedom lumped parameters dynamical model of this system is presented to study the dynamical load sharing behaviors. Some influencing factors, such as supporting stiffness, positions error of sun or carrier, and external input load are analyzed on the dynamical load sharing of the planetary gear system with mu

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Zhang, Yue Chun, Liang Tan, Ping Liu, and Hong Bo Zhou. "Determination of Load-Sharing Displacement of Flexible Pin Roll in Planet Gear Train." Applied Mechanics and Materials 86 (August 2011): 743–46. http://dx.doi.org/10.4028/www.scientific.net/amm.86.743.

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The eccentricity errors of each piece in the planet gear train set are described. This paper has made a tentative study on the determination of load-sharing displacement with formulas of equivalent errors. It takes the flexible pin roll as the load-sharing piece and LevelⅡ planet gear drive in the speed-increasing gearbox of some wind power generator for the case study. The results show i) that the radial error of each piece does not influence the operation of the planet gear train, but the tangential error does influence the load-sharing among the planet gears; and ii) that the load sharing d

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Guo, Zhiqiang, Shenlong Li, Wei Wu, and Liuyang Zhang. "Quasi-Static Load Sharing Characteristics of a Planetary Gear Set with Planet Journal Bearings." Applied Sciences 10, no. 3 (2020): 1113. http://dx.doi.org/10.3390/app10031113.

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The quasi-static load sharing characteristics of a planetary gear set with planet journal bearings are numerically investigated. The application of journal bearings instead of rolling bearings in planetary gear sets is an alternative to increase the rotation speed. Therefore, an effective analysis method is needed to estimate the dynamic performance of a planetary gear set with planet journal bearings. Here, an available load sharing factor computation method is developed considering the effect of the variable journal bearing stiffness. Results of an experiment are used to validate the effecti

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Kang, Kyung Min, Peng Mou, D. Xiang, and Gang Shen. "A Study on the Influence of Sun Gear Misalignment on Planet Load Sharing and Lifetime of Planetary Gear Using MSC.ADAMS." Applied Mechanics and Materials 743 (March 2015): 99–106. http://dx.doi.org/10.4028/www.scientific.net/amm.743.99.

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Misalignment on sun gear in planetary gear is easily occurred and it usually causes serious problem of work efficiency and lifetime with the change of planet load sharing. For study on the influence of sun gear misalignment on load sharing, multibody dynamics simulation is employed in this paper. First of all, 3D geometry model of planetary gear is built by Solidworks. Based on 3D model, multi-body dynamics model of planetary gear is built by MSC.ADAMS and calculate meshing forces between sun gear and planet gears with each type of sun gear misalignment which are angular, radial and axial type

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Mihailidis, Athanassios, Anastasios Moisiadis, and Andreas Psarros. "Impact of backlash, manufacturing deviations and friction on the load sharing factor of planetary gear systems." MATEC Web of Conferences 287 (2019): 01003. http://dx.doi.org/10.1051/matecconf/201928701003.

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Techniques and software tools, which were recently introduced by the authors, allowed for effi-cient automatic generation of 3D gear flanks and selective meshing of the gears of a simple planetary gear system with backlash and manufacturing imperfections. Friction of the meshing gear flanks was neglected. First results were promising and showed that even in geometrically perfect planetary gear systems the torque distribution is not uniform. It was further verified that pitch errors have a strong impact on the load distri-bution and that a self-aligning sun gear significantly enhances the torqu

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Gu, Xiao Yu, and Philippe Velex. "A Lumped Parameter Model to Analyse the Dynamic Load Sharing in Planetary Gears with Planet Errors." Applied Mechanics and Materials 86 (August 2011): 374–79. http://dx.doi.org/10.4028/www.scientific.net/amm.86.374.

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A non-linear dynamic model of planetary gears is presented which accounts for planet position errors, time-varying non-linear mesh stiffness along with the interactions between deflections and instantaneous meshing conditions. The quasi-static load distributions agree well with the experimental results in the literature thus validating the contact simulation. Extensions towards high-speed behaviour are presented which show how dynamic effects may impact the instantaneous load sharing amongst the planets.

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Li, Fa Jia, Ru Peng Zhu, He Yun Bao, and Xiao Zhen Li. "A Model of Nonlinear Dynamic Modeling for Planetary Gear Transmission System with Backlash." Applied Mechanics and Materials 86 (August 2011): 510–13. http://dx.doi.org/10.4028/www.scientific.net/amm.86.510.

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The (4+N) DOFs (degrees of freedom) nonlinear dynamic model of the planetary gear transmission system has been established which include the horizontal displacement, vertical displacement of sun gear, eccentricity error excitation of the sun gear and planetary gear, and gear backlash. The nonlinear dynamic equations was dealt with non-dimensional. Non-dimensional relative displacement of sun gear with planet gears and planet gears with internal gear were solved by using the method of numerical integration. Load sharing coefficients of every planet gear was got by dealt with the result of dynam

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Cao, Zheng, Yimin Shao, Ming J. Zuo, and Xihui Liang. "Dynamic and quasi-static modeling of planetary gear set considering carrier misalignment error and varying line of action along tooth width." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 229, no. 8 (2014): 1348–60. http://dx.doi.org/10.1177/0954406214543490.

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Misalignment error of gear pair will affect the load distribution along the tooth-width and have a great effect on dynamic characteristics. For the planetary gear set, it is complicated to model the misalignment error of carrier as, when this error is present, the planets and the carrier are tilted and contacts between sun–planet and ring–planet along tooth width are skewed. In this paper, a new lumped parameter model is set up to quasi-statically and dynamic analyze the planetary gear set with the position-dependent line of action due to the misalignment of the carrier. In the analytical mode

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Kim, Jeong Gil, Geun Ho Lee, Young Jun Park, Yong Yun Nam, and Tae Hyong Chong. "Study of Load Distribution and Sharing Characteristics of Planetary Geartrain for Wind Turbines." Applied Mechanics and Materials 86 (August 2011): 674–79. http://dx.doi.org/10.4028/www.scientific.net/amm.86.674.

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Most wind turbine gearboxes and pitch/yaw reducers consist of several planetary geartrains. Planetary geartrains allow gearboxes to be small, light, low noise, and efficient. The most important factors in the planetary geartrain design are load sharing among the planet gears and load distribution on the gear tooth flank. This study was conducted to analyze the load sharing and distribution in reducers with and without a slewing bearing. Load sharing and distribution of a pitch reducer without a slewing bearing were very uniform and even. However, in the other case, they were non-uniform and un

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Dissertations / Theses on the topic "Planet load sharing"

1

Boguski, Brian C. "An Experimental Investigation of the System-Level Behavior of Planetary Gear Sets." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1291009879.

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Prueter, Phillip Edward. "A Study of the Mechanical Design and Gear Tooth Root Strains in Flexible Pin, Multi-Stage, Planetary Wind Turbine Gear Trains Using Three Dimensional Finite Element/Contact Mechanics Models and Experiments." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1313372765.

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Keski-Säntti, J. (Jarmo). "Neural networks in the production optimization of a kraft pulp bleach plant." Doctoral thesis, University of Oulu, 2007. http://urn.fi/urn:isbn:9789514285691.

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Abstract Bleaching is an essential process in chemical pulp production for better pulp brightness and longer life expectancy. However, it causes costs such as chemicals, energy, equipment, and loss of yield. Non-linear reactions and several process variables, with interactions, make large plants complicated to model and optimize. As an expensive process bleaching has been a natural target of optimization, but there is still the need to either improve these methods or consider the optimization problem from a new point of view. The aim of this thesis was to develop production optimization meth

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Ye, Siang-yu, and 葉湘羭. "Analysis of Static Load Sharing in Planetary Gear Sets with a Floating Planet Gear." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/01872711490316180828.

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碩士<br>國立中央大學<br>機械工程研究所<br>99<br>Planetary gear drives have the advantages of high power-weight ratio, large gear ratio, as well as smooth transmission with high efficiency. They are often widely applied in mechanical power transmission system, such as vehicles, ship machinery, production machinery, and wind turbines. However, in the practice, the load sharing among the planets will be not even due to the presentence of manufacturing and assembling errors. It means the planetary gear set can’t provide power transmission with a larger torque even by increasing the number of planetary gears. In

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Books on the topic "Planet load sharing"

1

Office, General Accounting. [Rural Telephone Bank--review of RTB's 1991 loan interest rate calculation]. The Office, 1992.

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Office, General Accounting. [Impoundment control--President's 104th special message for fiscal year 1992]. The Office, 1992.

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Office, General Accounting. [ Impoundment control--President's fifth special message for FY 1995]. The Office, 1995.

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Office, General Accounting. [ Impoundment control--President's fourth special message for fiscal year 1995]. The Office, 1995.

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Office, General Accounting. [Financial audit]: [Federal Deposit Insurance Corporation's management letter as of December 31, 1993]. The Office, 1994.

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Office, General Accounting. [Impoundment control--deferrals of budget authority in GSA]. The Office, 1993.

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Office, General Accounting. [Financial audit of Service America's 1989 and 1990 operation of the House restaurant system]. The Office, 1992.

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Office, General Accounting. Financial audit: Federal Housing Administration Fund's 1988 financial statements : report to the Congress. The Office, 1990.

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Office, General Accounting. [ Open access same-time information system and standards of conduct]. The Office, 1996.

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Office, General Accounting. [Army accounting adjustments--Army Missile Command]. The Office, 1992.

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Book chapters on the topic "Planet load sharing"

1

Hammami, Ahmed, Alfonso Fernandez Del Rincon, Fakher Chaari, Fernando Viadero Rueda, and Mohamed Haddar. "Planet Load Sharing Behavior During Run Up." In Applied Condition Monitoring. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-41459-1_16.

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Iglesias, M., A. Fernández, A. de Juan, A. Díez, P. García, and F. Viadero. "Planet Eccentricity Error on a Planetary Gear Transmission: Influence on Load Sharing." In Proceedings of the 9th IFToMM International Conference on Rotor Dynamics. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-06590-8_113.

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Hosseini, SeyedVahid, Ali Izadi, Afsaneh Sadat Boloorchi, Seyed Hossein Madani, Yong Chen, and Mahmoud Chizari. "Optimal Design of Environmental-Friendly Hybrid Power Generation System." In Springer Proceedings in Energy. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63916-7_22.

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AbstractCombination of both renewable and fuel-based generation systems is an advantageous approach to develop off-grid distributed power plants. This approach requires evaluation of the techno-economic potential of each source in a selected site as well as optimization of load sharing strategy between them. Development of a remote hybrid power plant in an off-grid area is the interest of this study. Defining all available combinations, characteristics of performance, cost and availability of them evaluated. Applying constraints, multi-objective target domain based on load following and Levelized Cost of Electricity is established in which by utilizing Pareto front approach, optimized scenarios is achieved.

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Hu, C. F., Y. Yang, Y. Q. Tan, R. T. Peng, X. Z. Tang, and Z. Liu. "Reliability analysis of the planet transmission gearbox considering load sharing." In Power Engineering. CRC Press, 2016. http://dx.doi.org/10.1201/9781315386829-51.

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Conference papers on the topic "Planet load sharing"

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Boguski, B., A. Kahraman, and T. Nishino. "A New Method to Measure Planet Load Sharing and Sun Gear Radial Orbit of Planetary Gear Sets." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47196.

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A new method of measuring planet load sharing of planetary gear sets is proposed in this paper. The method uses strain gauges mounted directly on the planet pins to measure continuously the loads carried by the planets assembled in a fixed carrier. Example 4-planet gear sets of different planet phasing conditions are procured and tested with a family of planet carriers having various levels and combinations of planet pinhole position errors to demonstrate the measurement method. As the radial floating capability of the central members is critical to planet-to-planet load sharing, a companion p

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Ligata, Haris, Ahmet Kahraman, and Avinash Singh. "An Experimental Investigation of the Influence of Manufacturing Errors on the Planetary Gear Stresses and Load Sharing." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34096.

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In this paper, results of an experimental study are presented to describe the impact of certain types of manufacturing errors on gear stresses and the individual planet loads of an n-planet planetary gear set (n = 3 to 6). The experimental set-up includes a specialized test apparatus to operate a planetary gear set under typical speed and load conditions and gear sets having tightly controlled intentional manufacturing errors. The instrumentation system consists of multiple strain gauges mounted on the ring gear and a multi-channel data collection and analysis system. A method for computing th

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Leque, Nicholas D., and Ahmet Kahraman. "A Three-Dimensional Load Sharing Model of Planetary Gear Sets Having Manufacturing Errors." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47470.

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Planet-to-planet load sharing is a major design and manufacturing tolerancing issue in planetary gear sets. Planetary gear sets are advantageous over their countershaft alternatives in many aspects, provided that each planet branch carries a reasonable, preferably equal, share of the torque transmitted. In practice, the load shared among the planets is typically not equal due to the presence of various manufacturing errors. This study aims at enhancing the models for planet load sharing through a three-dimensional formulation of N-planet helical planetary gear sets. Apart from previous models,

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Singh, Avinash, Ahmet Kahraman, and Haris Ligata. "Internal Gear Strains and Load Sharing in Planetary Transmissions: Model and Experiments." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35047.

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This paper presents results of a comprehensive experimental and theoretical study to determine the influence of certain key factors in planetary transmissions on gear stresses and planetary load sharing. A series of tests are conducted on a family of planetary gear sets, and strains are recorded at various locations on the outer diameter and gear tooth fillet of the ring gear. Pinion position errors are introduced as a representative key manufacturing tolerance, and the resultant changes in the planetary behavior are observed. The experimental data is compared to the predictions of a state-of-

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Park, Youngjun, Geunho Lee, Jinseop Song, and Yongyun Nam. "Characteristics Analysis of Wind Turbine Gearbox Considering Fatigue Loads Caused by Wind Fluctuation." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47316.

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The influences of external loads caused by wind fluctuation on the load distribution on the gear tooth flank and the planet load sharing are investigated. A whole system model is developed to analyze the wind turbine gearbox (WTG) consists of planetary gear sets. The model includes non-linear mesh stiffness of gears, non-linear stiffness of bearings and the flexibilities of housing, planet carriers and ring gears. Two models for different design loads are employed to quantify the effect of external loads acting on input shaft of the WTG on the load distribution of gears and the load sharing am

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Liang, Jianbin, Datong Qin, Wei Wen, and Jun Jiang. "Research on Efficiency and Load Sharing Characteristics of High-Speed-Ratio Planetary Gear Transmissions." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46245.

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Wolfrom planetary gear (WPG), James Ferguson planetary gear (JFPG) and plus-planetary gear (PPG), feature high speed ratios and a low number of gears, but their efficiency is low and their performance is sensitive to manufacturing errors. In this paper, low-loss gears are used to improve the efficiency of these high-speed-ratio planetary gear transmissions. The methods to achieve the low-loss gears are optimizing modification coefficients and addendum coefficients simultaneously in order to equalize approach-contact ratio and recess-contact ratio. Besides, the sensitivity of the load sharing p

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Kyung Min, Kang, Mou Peng, Xiang Dong, Shen Gang, and Yang Yong. "A study on the influence of planet pin parallelism error to load sharing factor." In The 2015 International Conference on Design, Manufacturing and Mechatronics (ICDMM2015). WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814730518_0087.

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Ligata, H., A. Kahraman, and A. Singh. "Influence of Gear Rim Deflections on Planetary Gear Set Behavior." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86838.

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In this study, results of an experimental and theoretical study on the influence of rim thickness of the ring gear on rim deflections and stresses, and planet load sharing of a planetary gear set are presented. Experimental study consists of measurement of ring gear deflections and strains for gear sets having various numbers of planets, different ring gear rim thicknesses as well as various carrier pin hole position errors. Root and hoop strain gauges and displacement probes are placed at various locations so that the variations due to external splines of the stationary ring gear can also be

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Yeh, Hsiang-Yu, Shyi-Jeng Tsai, and Yuan-Yi Yu. "Numerical and Experimental Analysis of Flexible Pin Mechanisms for Load Balancing in Planetary Gear Drives." 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/detc2013-12538.

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Load balancing mechanism is an important design for planetary gear drives. Among the well-known designs the flexible pin mechanism has advantage for even load sharing among more than three planet gears. However, there is no sufficient information about how to design such mechanisms. The goal of the paper is to propose an analysis approach of flexible pin mechanisms for planetary gear drives numerically and experimentally. Two types of flexible pin mechanisms are analyzed in the study, a conventional design and a novel design. Numerical analysis is carried out by software KISSsoft and FEM to ev

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Ai, Xiaolan, Curtis Orkin, and Randy Kruse. "A Power Dense Planetary Drive for Rotorcraft Applications." 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/detc2013-12220.

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Increasing power density is an on-going objective for engineers of fixed wing and rotary wing aircraft. The powertrain system is one of the largest contributors to the total mass of the aircraft and the geartrain is the largest contributor to the mass of the powertrain system. As such, the geartrain becomes the primary focus of many power density studies and is the focus of this paper. Epicyclic geartrains are known to provide high power density and have become the geartrain of choice for the main power flow in virtually all aircraft designs. This paper presents a unique compound planetary des

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