Multi-Body Dynamics Analysis of Anti-Backlash Gear System Based on ADAMS/ Flex

2014 ◽  
Vol 971-973 ◽  
pp. 1261-1265
Author(s):  
Yu Jun Cao ◽  
Nai Hui Yu ◽  
Zheng Yang ◽  
Jian Zhong Shang
Keyword(s):  
Dynamic Characteristics ◽  
Coupling Model ◽  
Gear System ◽  
Dynamics Analysis ◽  
Simulation Accuracy ◽  
Flexible Coupling ◽  
Torsion Spring ◽  
Body Dynamics ◽  
Rigid Model ◽  
Multi Body

Anti-backlash gear can improve the static transmission precision of system. Besides, the dynamic characteristics of anti-backlash gear system have a significant effect on the performance of overall mechanism, and the torsion spring preload of anti-backlash gear is an important factor to affect the dynamic characteristic. In order to study dynamic characteristics of the anti-backlash gear, a rigid-flexible coupling model of single-stage anti-backlash system was established based on ADAMS / Flex, and the simulation accuracy was compared with the pure rigid model. The effect of the torsion spring preload on frequency response of the anti-backlash system was studied by virtual sweep experiments.

Application of Rigid-Flexible Coupling in Stiffness Calculation of Double Wishbone Suspension

2012 ◽  
Vol 214 ◽  
pp. 161-164
Author(s):  
H.N. Wang ◽  
X.W. Hou ◽  
X.P. Su
Keyword(s):  
Coupling Model ◽  
Ansys Software ◽  
Practical Situation ◽  
Torsion Beam ◽  
Flexible Coupling ◽  
Body Dynamics ◽  
Tire Dynamics ◽  
Rigid Model ◽  
Suspension Line ◽  
Multi Body

Based on multi-body Dynamics theory, the 1/4 multi-rigid model of double wishbone suspension of automobile in ADAMS/View is created, and use ANSYS software to analyze torsion beam flexibility. Furthermore, the rigid-flexibility model has been created and the rigid change of suspension line along with the tire dynamics change is simulated. The result shows that the rigid-flexible coupling model is more accuracy than the multi-rigid one and fits the practical situation even better. This paper proposes an efficient method for analyzing the rigid of double-wishbone suspension vertical line.

Dynamical Analysis for Mechanical Arm of the Coal Sampling Machine Based on Rigid-Flexible Coupling Model

2012 ◽  
Vol 605-607 ◽  
pp. 1172-1175
Author(s):  
Li Le He ◽  
Rong Li Li
Keyword(s):  
Lagrange Equation ◽  
Coupling Model ◽  
Dynamical Analysis ◽  
Dynamical Equations ◽  
Flexible Coupling ◽  
Body Dynamics ◽  
Coupling Mode ◽  
Flexible Deformation ◽  
Multi Body ◽  
Model Curve

Based on multi-body dynamics theory and the Lagrange equation， the rigid-flexible coupling dynamical equations of the Coal sampling arm was deduced.The rigid-flexible coupling mode is established by combining with Pro/E, ANSYS and ADAMS, and the model curve is gotten by simulation. The simulation results indicate that rigid-flexible coupling modeling is more actual and it is necessary to consider the flexible deformation of all arms when the sampling arm system is researched. The results in this paper presents the theoretical foundation for the sampling arm dynamical analysis and structure optimization.

scholarly journals Investigation of the dynamic characteristics of suspension parameters on a vehicle experiencing steering drift during braking

2005 ◽  
Vol 219 (12) ◽  
pp. 1429-1441 ◽  
Author(s):  
N Mirza ◽  
K Hussain ◽  
A J Day ◽  
J Klaps
Keyword(s):  
Dynamic Characteristics ◽  
Simulation Study ◽  
Simulation Modelling ◽  
Lateral Acceleration ◽  
Dynamics Analysis ◽  
Suspension Parameters ◽  
Straight Line ◽  
Body Dynamics ◽  
Suspension Geometry ◽  
Multi Body

This paper presents a simulation study into the characteristics of a vehicle experiencing steering drift under straight line braking. Simulation modelling has been performed using a multi-body dynamics analysis based on a model of an actual vehicle. Front and rear suspension parameters have been modelled as rigid links joined with flexible bushes so as to assess their effect on a vehicle while braking. Suspension geometry and alignment settings, which define characteristic responses such as lateral acceleration, yaw velocity, toe, and caster angles of a vehicle in a transient manoeuvre, are primary to a vehicle's directional stability. Any symmetric inconsistencies in these settings will potentially affect a vehicle's performance. The findings from this research have increased the understanding of the causes of steering drift during braking conditions.

Rigid-Flexible Coupling Dynamics Analysis for a Twin-Rotor Piston Engine

2014 ◽  
Vol 1016 ◽  
pp. 228-233
Author(s):  
Teng An Zou ◽  
Cun Yun Pan ◽  
Xiang Zhang ◽  
Lei Zhang
Keyword(s):  
Coupling Model ◽  
Dynamics Model ◽  
Piston Engine ◽  
Flexible Coupling ◽  
Rotary Engine ◽  
Actual Movement ◽  
Body Dynamics ◽  
Coupling Dynamics ◽  
Multi Body ◽  
Twin Rotor

Twin-rotor piston engine (TRPE) is a new differential rotary engine, which is still under developing. In this paper, a rigid-flexible coupling dynamics model was established for the prototype TRPE-350. By combining the multi-body dynamics simulating software RecurDyn and the finite analysis software ANSYS, the TRPE′s performances were studied. Vibration analysis for rigid-flexible coupling model was analyzed. The simulation results can be found that the simulated overall changing trends match with the actual movement of the TRPE very well. So it provides a theoretical tool for further optimization and improvement of this engine.

Rigid-Flexible Coupling Dynamics Analysis of Clock Mechanism

2010 ◽  
Vol 44-47 ◽  
pp. 1823-1827
Author(s):  
Li Sui ◽  
Geng Chen Shi ◽  
Ping Song ◽  
Wei Song
Keyword(s):  
Time Delay ◽  
Dynamic Environment ◽  
Coupling Model ◽  
Dynamics Analysis ◽  
Core Component ◽  
Flexible Coupling ◽  
Coupling Dynamics ◽  
Rigid Model ◽  
Simulation Results ◽  
Clock Mechanism

As a device for time-delay, clock mechanism is widely used in fuze safety and arming device, whose core component is the runaway escapement. With the development of artillery systems, the dynamic environment during the projectile becomes more and more complicated. Recently, some shots misfire or premature explode during shooting process because runaway escapements’ miswork. This paper utilizes gear system’s research results applied in other fields, discusses clock mechanism’s dynamics problem, and uses ADAMS to analyze runaway escapement’s rigid-flexible coupling model. From comparing the simulation results of multi-rigid model and rigid-flexible coupling model, we find that elastic deformation will affect runaway escapement’s movement, even can cause the whole device to work abnormally.

Dynamic Characteristic Analysis of Irregularity under Turnout by Vehicle-Turnout Rigid-Flexible Coupling Model

2014 ◽  
Vol 945-949 ◽  
pp. 591-595 ◽  
Author(s):  
Meng Chen ◽  
Yan Yun Luo ◽  
Bin Zhang
Keyword(s):  
Finite Element ◽  
Longitudinal Direction ◽  
Element Model ◽  
Vertical Displacement ◽  
Coupling Model ◽  
Interaction Force ◽  
Vertical Acceleration ◽  
Characteristic Analysis ◽  
Flexible Coupling ◽  
Multi Body

Finite element model of track in frog zone is built by vehicle-turnout system dynamics. Considering variation of rail section and elastic support, bending deformation of turnout sleeper, spacer block and sharing pad effects, the track integral rigidity distribution in longitudinal direction is calculated in the model. Vehicle-turnout rigid-flexible coupling model is built by finite element method (FEM), multi-body system (MBS) dynamics and Hertz contact theory. With the regularity solution that different stiffness is applied for rubber pad under sharing pad of different turnout sleeper zone, analysis the variation of vertical acceleration of bogie and wheelset, rail vertical displacement and wheel-rail interaction force, this paper proves that setting reasonable rubber pad stiffness is an efficient method to solve rigidity irregularity problem.

scholarly journals On the use of computational multi-body dynamics analysis in SLS-based 3D printing

2016 ◽  
Vol 12 ◽  
pp. 291-295 ◽  
Author(s):  
Hammad Mazhar ◽  
Tim Osswald ◽  
Dan Negrut
Keyword(s):  
3D Printing ◽  
Dynamics Analysis ◽  
Body Dynamics ◽  
Multi Body

scholarly journals Design and multi-body dynamics analysis of a four-claw spherical stabilization platform based on Adams

2019 ◽  
Vol 612 ◽  
pp. 032177
Author(s):  
Shan Xue ◽  
Zhengbin Liu ◽  
Zhen Zhang ◽  
Guangqing Li ◽  
Qiongying Lv
Keyword(s):  
Dynamics Analysis ◽  
Body Dynamics ◽  
Multi Body

Analysis and Research of Dynamic Characteristics of Synchronous Belt of a Diesel Using Multi-Body Dynamics

2011 ◽  
Vol 97-98 ◽  
pp. 721-725
Author(s):  
Yi Min Li ◽  
Zhi Yong Hao ◽  
Jin Li
Keyword(s):  
Dynamic Characteristics ◽  
Great Influence ◽  
Dynamic Tension ◽  
Timing Drive ◽  
Body Dynamics ◽  
Timing System ◽  
Speed Fluctuation ◽  
The One ◽  
Transversal Vibrations ◽  
Multi Body

The dynamic tension of synchronous belt and pulleys forces are obtained by analyzing the dynamic characteristics of timing drive system of a diesel based on muti-body dynamics. The effects of crankshaft speed fluctuation and other excitations on the dynamics characteristics of synchronous belt are illustrated. After the analysis, it is found that crankshaft speed fluctuation has a great influence on the linear and transversal vibrations of synchronous belt. Comparing the simulation results of the original timing system and the one optimized, it is found that the modal frequency of synchronous belt depends on its span. Therefore it is important to control the span of belt and arrange the tensioner pulley properly for timing system design.

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