Thermal performance improvement in water nanofluid/GNP–SDBS in novel design of double-layer microchannel heat sink with sinusoidal cavities and rectangular ribs

E Khodabandeh, SA Rozati, M Joshaghani… - Journal of Thermal …, 2019 - Springer
In this numerical study, laminar flow of water nanofluid/GNP–SDBS (graphene nanoplatelet–
sodium dodecylbenzene sulfonate) for 0–0.1% solid nanoparticles mass fraction was …

[HTML][HTML] Nonlinear dynamic behavior of a flexible asymmetric aero-engine rotor system in maneuvering flight

GAO Tian, CAO Shuqian, SUN Yongtao - Chinese Journal of Aeronautics, 2020 - Elsevier
Aero-engine rotor systems installed in aircraft are considered to have a base motion. In this
paper, a flexible asymmetric rotor system is modeled considering the nonlinear supports of …

Vibration response analysis of rotor system coupled with a novel 4-DOF SFD hydrodynamic model considering the influence of rotational displacement

Y Xu, H Cao, J Shi, S Pei, H Li - Tribology International, 2024 - Elsevier
As a dam** structure, squeeze film dampers (SFDs) are commonly employed in
turbomachinery. Aiming at the problem of hydrodynamic modeling and solution, this paper …

[PDF][PDF] Chaotic time series recognition: a deep learning model inspired by complex systems characteristics

A Pourafzal, A Fereidunian, K Safarihamid - International Journal of …, 2023 - sid.ir
ABSTRACT A deep learning method is developed for chaotic time series classification. We
investigate the chaotic state of a dynamical system, based on the output of the system. One …

Nonlinear dynamics of rotor system supported by bearing with waviness

G Nan, Y Zhang, Y Zhu, W Guo - Science Progress, 2020 - journals.sagepub.com
A new nonlinear rotor model supported by the rolling bearing is established under the
consideration of the bearing with waviness fault, the unbalanced excitation, the nonlinear …

Fatigue life prediction of a coaxial multi-stage magnetic gear

S Modaresahmadi, A Hosseinpour… - 2019 IEEE Texas …, 2019 - ieeexplore.ieee.org
Magnetic gearing is an emerging approach to avoid contact failures from the gear teeth
interface of mechanical gearboxes through a non-contact torque transmission concept. In …

Vibration analysis of the first stage of a multi-stage coaxial magnetic gearbox

S Modaresahmadi, K Li, WB Williams… - SoutheastCon …, 2018 - ieeexplore.ieee.org
This paper describes an analytical model of a single stage of a series-connected multi-stage
coaxial magnetic gear (MSMG). This model is a system of spring-mass-dampers which is …

[PDF][PDF] The effect of dam** and stiffness of bearing on the natural frequencies of rotor-bearing system

M Eftekhari - Int J Eng, 2017 - sid.ir
In this paper, the effectiveness of stiffness and dam** of bearing is investigated on the
natural frequencies of the rotor-bearing system. The rotor-bearing system consists of a shaft …

Adaptive power system stabilizer design for interconnected power systems

F Shama - 2018 Smart Grid Conference (SGC), 2018 - ieeexplore.ieee.org
A power system is a nonlinear dynamic system that operates under an ever-changing set of
parameters. With modern dynamic power systems maintaining plant stability is crucial. In this …

Vibro-acoustic behavior of unbalanced shaft-bearing-pedestal coupled system with bearing faults and looseness

E Sh Khoram-Nejad, A Ohadi - … of Theoretical and Applied Vibration and …, 2024 - tava.isav.ir
Investigating the sound radiated from faulty rolling element bearings (REBs) in rotor-bearing
systems is as crucial as studying their vibration characteristics. This approach offers experts …