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Monday, May 11, 2020 | History

3 edition of Non-linear dynamic analysis of geared systems. found in the catalog.

Non-linear dynamic analysis of geared systems.

Rajendra Singh

Non-linear dynamic analysis of geared systems.

by Rajendra Singh

  • 286 Want to read
  • 38 Currently reading

Published by The Ohio State University, Dept. of Mechanical Engineering, National Aeronautics and Space Administration, Lewis Research Center in [Columbus, Ohio], Cleveland, Ohio .
Written in English

    Subjects:
  • Gearing -- Dynamics -- Mathematical models.,
  • Gearing, Spur -- Mathematical models.,
  • Vibration.,
  • Roller bearings.,
  • Dynamic characteristics.,
  • Dynamic models.,
  • Finite element method.,
  • Gear teeth.,
  • Mathematical models.,
  • Nonlinearity.,
  • Roller bearings.,
  • Shafts (Machine elements),
  • Transmissions (Machine elements)

  • Edition Notes

    StatementRajendra Singh, Donald R. Houser, and Ahmet Kahraman.
    SeriesNASA CR -- 180495., NASA contractor report -- NASA CR-180495.
    ContributionsHouser, Donald R., Kahraman, Ahmet., Ohio State University. Dept. of Mechanical Engineering., Lewis Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL16138659M

    Nonlinear Dynamics provides a forum for the rapid publication of original research in the field. The journal’s scope encompasses all nonlinear dynamic phenomena associated with mechanical, structural, civil, aeronautical, ocean, electrical, and control systems.   A nonlinear multi-gap planetary gear system finite element method model was established, and the engagement stress, the displacement, and the velocity curve with time of nodes of the planetary gear system were obtained by using explicit dynamic solution by: 5.

    Non-linear dynamic analysis of geared systems. Abstract. Under driving conditions, a typical geared system may be subjected to large dynamic loads. Also, the vibration level of the geared system is directly related to the noise radiated from the gear box. The steady state dynamic behavior of the system is examined in order to design.   Nonlinear Dynamical Systems Analysis for the Behavioral Sciences Using Real Data by Stephen J. Guastello, , available at Book Depository with free delivery worldwide.4/5(1).

    Epicyclic gear systems have a long history of industrial use. As early as , James Watt patented a sun and planet gear arrangement used in one of his early engines. However, advances in internal gear manufacturing did not parallel those in external gears, limiting the development of epicy-clic gear trains. As industrial applications required. Under driving conditions, a typical geared system may be subjected to large dynamic loads. Also, the vibration level of the geared system is directly related to the noise radiated from the gear box. The steady state dynamic behavior of the system is examined in order to design reliable and quiet transmissions. The scope is limited to a system containing a spur gear pair with backlash and Cited by:


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Non-linear dynamic analysis of geared systems by Rajendra Singh Download PDF EPUB FB2

CONCLUSION This analytical study on the non-linear dynamics of a geared rotor-bearing system with gear backlash and bearing clearances, as excited by the internal static transmission error and/or external torque pulsations, has made a number of contributions to the state of the Size: 6MB.

Abstract. A nonlinear dynamic model of a spiral bevel gear train mounted on flexible shafts and bearings is proposed in this study. The finite element model of shafts is combined with a three-dimensional discrete mesh model of a spiral bevel gear pair.

Bearing flexibilities are as well included in the model. Gear backlash is incorporated into the model in the form of clearance-type displacement Cited by: 2. Full Text; PDF ( K) Nonlinear dynamic analysis of a microsegment gear system with a time-varying base circle.

Kang Huang, a Fengwei Xu, a Yangshou Xiong, b c Meng Sang, a Yong Yi a a School of Mechanical Engineering, Hefei University of Technology, HefeiChina. b Institute of Industry & Equipment Technology, Hefei University of Technology, Hefei: Kang Huang, Fengwei Xu, Fengwei Xu, Yangshou Xiong, Meng Sang, Yong Yi.

invariant (LTI) spiral bevel geared system. In this study, a nonlinear dynamic m odel of a spiral bevel gear pair mounted on flexible shafts and bearings is considered. The. dynamic model combines.

A systematic dynamic analysis of a microsegment gear system with a time-varying base circle, time-varying mesh stiffness, and gear backlash is carried out in this paper.

By discretizing the meshing process, a six degree-of-freedom nonlinear dynamic model of a microsegment gear pair is established. Nonlinear Dynamic Analysis on Planetary Gears-Rotor System in Geared Turbofan Engines J., Luo, C.

& Wang, Q. [] “ Nonlinear dynamic characteristics of geared rotor bearing systems with dynamic backlash and friction L., Gao, N. & Hu, A. [a] “ Dynamic analysis of a planetary gear system with multiple nonlinear parameters,” J Author: Lanlan Hou, Shuqian Cao. Coatings can significantly improve the load-carrying performance of a gear surface, but how they affect the vibration characteristic of the system is an urgent issue to be solved.

Taking into account the nonlinear factors like the variable mesh stiffness, friction, backlash, and transmission error, a six-degree-of-freedom spur gear transmission system with coatings is : Yangyi Xiao, Liyang Fu, Jing Luo, Wankai Shi, Minglin Kang.

Nonlinear Dynamic Analysis on Planetary Gears-Rotor System in Geared Turbofan Engines Article in International Journal of Bifurcation and Chaos 29(06) June with 69 Reads. About this book This reference work provides a comprehensive insight into past developments in the application of non-linear dynamics, such as production systems in the manufacturing and process engineering, mechanical engineering and plant construction and automation technology.

In addition, the system is under the action of external excitation, caused by torsional moments and gear geometry errors. First, the equation of motion is established in a strongly non-linear form.

Then, the emphasis is laid on a specific forcing frequency range, corresponding to conditions of simultaneous fundamental parametric resonance and principal external by: In a series of papers, Theodossiades and Natsiavas [5], [6]studied the non-linear dynamics of a gear pair system with backlash, periodic mesh stiffness, static transmission error and external excitation, which were caused by torsional moments and gear geometry by:   Al-shyyab, A., Kahraman, A.: Non-linear dynamic analysis of a multi-mesh gear train using multi-term harmonic balance method: period-one motions.

Sound Vib.– () CrossRef Google ScholarCited by: 8. In this analysis, in order to investigate the nonlinear dynamic characteristics of spur gear system with backlash b, the other parameters remain the same, the 3-D frequency spectrum using b as control parameter with different rotational speed are obtained as shown in Fig.

2, the vibration responses of spur gear system in the range of ω Author: Jie Liu, Shihua Zhou, Shijie Wang. Get this from a library. Non-linear dynamic analysis of geared systems. [Rajendra Singh; Donald R Houser; Ahmet Kahraman; Ohio State University. Department of Mechanical Engineering.; United States.

National Aeronautics and Space Administration. Scientific and Technical Information Division.]. Yoon J. J, Kim B. Vibro-impact energy analysis of a geared system with piecewise-type nonlinearities using various parameter values. Energies, Vol. 8,p. Choi S. T., Mau S. Dynamic analysis of geared rotor-bearing systems by the transfer matrix method.

Journal of Mechanical Design, Vol. Issue 4,p. Cited by: 2. Under driving conditions, a typical geared system may be subjected to large dynamic loads. Also, the vibration level of the geared system is directly related to the noise radiated from the gear box.

The steady state dynamic behavior of the system is examined in. Dynamic analysis of a geared infinitely variable transmission (IVT) that can generate a continuous output-to-input speed ratio from zero to a certain value is Cited by: 2.

The time variability of many natural and social phenomena is not well described by standard methods of data analysis. However, nonlinear time series analysis uses chaos theory and nonlinear dynamics to understand seemingly unpredictable behavior.

The results are applied to real data from physics, biology, medicine, and engineering in this by: Get this from a library. Non-linear dynamic analysis of geared systems. Part II, final report. [Rajendra Singh; Donald R Houser; Ahmet Kahraman; Ohio State University.

Department of Mechanical Engineering.; Lewis Research Center.]. Introduction When a geared system accelerates or decelerates there is a change in the total inertia of the system. Clearly, the value of this increase or decrease depends upon the speed ratios of the various parts of the system.

Coatings can significantly improve the load-carrying performance of a gear surface, but how they affect the vibration characteristic of the system is an urgent issue to be solved. Taking into account the nonlinear factors like the variable mesh stiffness, friction, backlash, and transmission error, a six-degree-of-freedom spur gear transmission system with coatings is presented.

Meanwhile, the Author: Yangyi Xiao, Liyang Fu, Jing Luo, Wankai Shi, Minglin Kang.A good understanding of the steady state dynamic behavior of a geared system is required in order to design reliable and quiet transmissions.

This study focuses on a system containing a spur gear pair with backlash and periodically time-varying mesh stiffness, and rolling element bearings with clearance type non-linearities.The gear mesh stiffnesses have been regarded as constants in most previous models of geared rotor-bearing systems.

In this paper, a dynamic analysis of a spur geared rotor-bearing system with nonlinear gear mesh stiffness is presented. The nonlinear gear mesh stiffness is accounted for by bending, fillet-foundation and contact deflections of gear by: 1.