Lateral Vibration Prediction of Drivelines Having a Flexible Coupling

2011 ◽  
Author(s):  
Shannon K. Sweeney
Keyword(s):  
Lateral Vibration ◽  
Flexible Coupling ◽  
Vibration Prediction

Vibration of a Misaligned Rotor System with Asymmetric Shaft Stiffness

2012 ◽  
Vol 503-504 ◽  
pp. 813-818
Author(s):  
Sheng Feng ◽  
Hai Peng Geng ◽  
She Miao Qi ◽  
Lie Yu
Keyword(s):  
Natural Frequency ◽  
Vibration Amplitude ◽  
Rotor System ◽  
Lateral Vibration ◽  
Rotor Speed ◽  
Flexible Coupling ◽  
Parallel Misalignment ◽  
Rigid Disks ◽  
Simulation Results ◽  
Speed Simulation

Vibration characteristics of a misaligned rotor with asymmetric shaft stiffness are studied. The system consists of two shafts connected by a flexible coupling with parallel misalignment, two rigid disks attached at the middle of each shaft and one of the shafts has asymmetric stiffness. The governing ordinary differential equations are derived using Lagrange dynamics and integrated through numerical methods. The effects of asymmetry, eccentricity and misalignment are studied through the peak-to-peak lateral vibration amplitude at different rotor speed. Simulation results show that the amplitude peaks at the natural frequency associated with unbalance and parallel misalignment, while half the natural frequency associated with the asymmetric shaft stiffness. This study may contribute to enrich understanding of the vibration of a rotor system under the cases of eccentricity, parallel misalignment and asymmetric shaft stiffness.

Vibration prediction based on the coupling method of half-train model and 3D refined finite element ground model

2021 ◽  
Vol 134 ◽  
pp. 104133
Author(s):  
Bitao Wu ◽  
Yuanlai Zeng ◽  
Zhenwei Zhou ◽  
Gang Wu ◽  
Huaxi Lu
Keyword(s):  
Finite Element ◽  
Coupling Method ◽  
Ground Model ◽  
Vibration Prediction

scholarly journals Improvement of pin flexible coupling construction

2020 ◽  
Vol 952 ◽  
pp. 012031
Author(s):  
N N Saveleva ◽  
Y V Savelev
Keyword(s):  
Flexible Coupling

Analysis of Drive Shaft Speed Variations in a Scotch Yoke Mechanism

1982 ◽  
Vol 104 (1) ◽  
pp. 239-246 ◽  
Author(s):  
J. L. Wiederrich
Keyword(s):  
Practical Importance ◽  
Drive Shaft ◽  
Constant Speed ◽  
Shaft Speed ◽  
Flexible Coupling ◽  
Harmonic Content ◽  
Common Drive ◽  
Scotch Yoke Mechanism

Two analyses are presented for determining the drive shaft speed variations in a scotch yoke mechanism. The first analysis determines the speed variations when the mechanism is rigidly connected to a motor having a quadratic speed versus torque characteristic. The second analysis determines the speed variations when the mechanism is connected to a constant speed source through a flexible coupling. Together these models represent the two most common drive configurations. The results are of practical importance since they can be used in the preliminary calculations necessary in either the design of a main drive or the diagnosis of a drive problem in an existing machine. The methods are also of theoretical importance since they may be extended to the analysis of mechanisms having a greater harmonic content than the simple scotch yoke mechanism.

Reliability Study of Thin Seam Hearer Cutting Unit under Multi-Condition

2011 ◽  
Vol 199-200 ◽  
pp. 591-596 ◽  
Author(s):  
Li Juan Zhao ◽  
Zhong Gang Sun
Keyword(s):  
Mechanical Properties ◽  
Model Simulation ◽  
Comprehensive Analysis ◽  
Weak Links ◽  
Prototype Model ◽  
Simulation Environment ◽  
Reliability Study ◽  
Flexible Coupling ◽  
Thin Seam ◽  
Cutting Unit

Application of a variety of software construct co-simulation environment, establishment of model of thin seam shearer cutting unit rigid-flexible coupling multimode system, do correctness verification to model from speed characteristics and mechanical properties. Simulation by loading, get characteristics of principal stress and weak links of key parts. Compared to the prototype model simulation under multi-condition, got the best traction speed of shearer when working in a particular coal seam. Axis of the planet given to different materials to comparative simulation and comprehensive analysis, given the best materials of planetary shaft should be selected, improved the reliability of planetary axis under poor conditions.

Modal synthesis method of lateral vibration analysis for rotor-bearing system

2002 ◽  
Vol 80 (32) ◽  
pp. 2537-2549 ◽  
Author(s):  
Chun-Ping Zou ◽  
Hong-Xing Hua ◽  
Duan-Shi Chen
Keyword(s):  
Vibration Analysis ◽  
Synthesis Method ◽  
Lateral Vibration ◽  
Modal Synthesis ◽  
Rotor Bearing ◽  
Bearing System
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