nonlinear dynamics and chaos of an unbalanced

The paper determines the impact factors of dynamics of a motorized spindle rotor system due to high speed: centrifugal force and bearing stiffness softening A nonlinear dynamic model of the grinding motorized spindle system considering the above impact factors is constructed Through system simulation including phase portraits and Poincar#xe9 map the periodic behavior and chaotic 2015-4-16Nonlinear Dynamic Response of an Unbalanced Flexible Rotor Supported by Elastic Bearings Lubricated with Piezo-Viscous and chaos of rotor-bearing systems and a significant progress in rotor-dynamics field has been made [2–21]

Open research issues on Nonlinear Dynamics Dynamical

2014-11-7Open research issues on Nonlinear Dynamics Dynamical Systems and Processes A V Doroshin 1 F Neri 2 1 Department of Space Engineering (Division of Flight Dynamics and Control Systems) Samara State Aerospace University (National Research University) RUSSIAN FEDERATION2 Department of Computer Science University of Naples Federico II Naples ITALY

2015-4-16Nonlinear Dynamic Response of an Unbalanced Flexible Rotor Supported by Elastic Bearings Lubricated with Piezo-Viscous and chaos of rotor-bearing systems and a significant progress in rotor-dynamics field has been made [2–21]

An unbalanced rotor dynamic model supported on ball bearings is established In the model three nonlinear factors of ball bearing are considered namely the clearance of bearing nonlinear Hertzian contact force between balls and races and the varying compliance vibrations because of periodical change in contact position between balls and races

2018-12-19Nonlinear dynamics is the branch of mathematics which intends to uncover the temporal evolution of nonlinear dynamical systems chaos or limit cycles All this complexity renders it extremely hard to obtain unbalanced rotors are used to generate a desired vibration Some examples are the feeding conveying and screening of bulk

Non-linear dynamics and contacts of an unbalanced exible rotor supported on ball bearings observed experimentally the existen ce of two different routes to chaos in ball bearing dynamic motion Nataraj and Harsha [19] invest igated the nonlinear dynamic behavior of an unbalanced rotor-bearing system due to cage run-out T hey indicated that

Spinup dynamics of axial dual

2019-11-12Heteroclinic chaos and its local suppression in attitude dynamics of an asymmetrical dual-spin spacecraft and gyrostat-satellites The Part II—The heteroclinic chaos investigation Communications in Nonlinear Science and Numerical Simulation Vol 31 No 1-3

2020-6-8Non-linear dynamics and contacts of an unbalanced flexible rotor supported on ball bearings Jean-Jacques Sinou To cite this version: Jean-Jacques Sinou Non-linear dynamics and contacts of an unbalanced flexible rotor sup-ported on ball bearings Mechanism and Machine Theory Elsevier 2009 44 (9) pp 1713-1732

The nonlinear semiclassical dynamics of the unbalanced open Dicke model we provide a comprehensive roadmap of the possible dynamics that arise in the unbalanced open Dicke model in the form of a phase diagram in the plane of the two interaction strengths the possibility of studying a manifestation of quantum chaos in a specific

In the area of mechanics and electronics the behaviors of mechanical systems under periodic loadings have been examined by many researchers Vertical conveyors are effective examples observing various kinds of parameters of this problem In this study the nonlinear analysis of unbalanced mass of vertical conveyor with non-ideal DC motor has been analyzed

2010-10-20Gupta T C Gupta K Sehgal D K (2011) Nonlinear Dynamics and Chaos of an Unbalanced Flexible Rotor Supported by Deep Groove Ball Bearings with Radial Internal Clearance In: Gupta K (eds) IUTAM Symposium on Emerging Trends in Rotor Dynamics IUTAM Bookseries vol 1011 Springer Dordrecht First Online 20 October 2010

Unbalance response of Jeffcott rotor-tilting pad bearing system is analyzed with the nonlinearity of the bearing oil film forces considered Based on the unsteady Reynolds equation and Reynolds boundary condition a database of nonlinear oil film force for single pad

1 Chaos is now thought to be rather com-mon in nature and the study of nonlinear dynamics has Notes: Dynamics Notes Relationships Between Variables Notes: Zitzewitz 6 668-693 2017 As you may know people have search numerous times for their chosen novels like this Physics Dynamics Problems And Solutions but end up in harmful downloads

1 ZHANG Qi-chang FEI Jie FENG Jing-jing(Tianjin Key Laboratory of Nonlinear Dynamics and Chaos Control School of Mechanical Engineering Tianjin University Tianjin 300072 China State Key Laboratory of Engines Tianjin University Tianjin 300072 China) Vibration characteristic analysis of thin cylindrical shell excited by pulsating flow[J] 2012-15

Nonlinear vibration response characteristics of high

2017-4-28The nonlinear vibration response characteristics of the high-speed flexible rotor system were obtained through simulation The results show that when the working speed of rotor is above the critical speed the periodic quasi-periodic and chaos can exist when the flexible rotor working

2008-2-1Journal of Sound and Vibration 2006 294: 23-48 [12] Harsha S P Nonlinear dynamic analysis of an unbalanced rotor supported by roller bearing Chaos Solitons and Fractals 2005 26(1-2): 47-66 [13] Harsha S P Nonlinear dynamic response of a balanced rotor sup ported by rolling element bearings due to radial internal clearance effect

Roundtable Discussion: Machine Learning for Power Systems: Present Future Spyros Chatzivasileiadis Misha Chertkov Pascal Van Hentenryck Daniel Molzahn Louis Wehenkel Mediator: Pascal Van Hentenryck (Georgia Tech) Review of the Field: Louis Wehenkel (U of Liege) – 15 min Provocateurs: (7 min each)

2020-7-26Jun-xin Chen Zhi-liang Zhu Chong Fu Hai Yu A fast image encryption scheme with a novel pixel swapping-based confusion approach Nonlinear Dynamics 77(4): 1191-1207 (2014) (SCI IF=2 849) Jun-xin Chen Zhi-liang Zhu Li-bo Zhang Chong Fu Hai Yu An efficient diffusion scheme for chaos-based digital image encryption Mathematical Problems in Engineering Article ID 427349 13

In recent years there have been significant advances in the study of many-body interactions between atoms and light confined to optical cavities One model which has received widespread attention of late is the Dicke model which under certain conditions exhibits a quantum phase transition to a state in which the atoms collectively emit light into the cavity mode known as superradiance

Multi-pulse chaotic dynamics of an unbalanced Jeffcott rotor with gravity effect Multi-pulse chaotic dynamics of an unbalanced Jeffcott rotor with gravity effect Yu Tian-Jun Zhou Sha Zhang Wei Yang Xiao-Dong 2016-09-14 00:00:00 Nonlinear Dyn (2017) 87:647–664 DOI 10 1007/s11071-016-3066-9 ORIGINAL PAPER Multi-pulse chaotic dynamics of an unbalanced Jeffcott rotor with gravity effect

2017-9-2controls and nonlinear dynamics He has published more than 20 papers in various referred journals S P Harsha received his PhD in Nonlinear Dynamics and Chaos from BITs Pilani and Post-Doctoral from Villanova University Philadelphia USA His research areas are vibrations and control nonlinear dynamics and chaos

In this paper an energy harvesting model based on a portal frame structure modeled as a duffing system with a non-ideal excitation force DC motor with an unbalanced mass is presented and the piezoelectric coupling is designed to exhibit nonlinear characteristics Nonlinearity included provides higher power output over a wide frequency range This analysis was carried out by numerical

2005-10-1The nonlinear response of an unbalanced rotor with internal radial clearance has been demonstrated to be chaotic for some specific combination of nonlinear stiffness and rotational speed combined with a misalignment of races to provide sufficient non-linearity