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.

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.

Analysis and Simulation on Dynamic Stress of Tracked Vehicle Sprocket Based on Rigid-Flexible Coupling

2011 ◽  
Vol 199-200 ◽  
pp. 1358-1361 ◽  
Author(s):  
Bing Chen ◽  
Zheng Tian ◽  
Zhong Jun Yin
Keyword(s):  
High Speed ◽  
Dynamic Stress ◽  
Element Model ◽  
Coupling Model ◽  
Tracked Vehicle ◽  
Flexible Coupling ◽  
Single Tooth ◽  
Gear Ring ◽  
Simulation Results ◽  
The Finite Element Model

This paper established a high-speed tracked vehicle dynamics model, and simulated the transient response of sprocket when the vehicle is running at 60km/h on the D class road. the finite element model of the single tooth in mesh is established in Ansys and the rigid-flexible coupling model of "trackboard- sprocket" is established in RecurDyn. The dynamic stress and strain fringe of the sprocket’s gear ring is achieved by analysis. Simulation results show that the stress of tracked vehicle sprocket gear root and the fixed gear bolt hole is larger, and the stress concentration is detected at the edge of contacted tooth. The simulation results provide the calculation basis for the optimization of the high-speed tracked vehicle system and its lifespan prediction.

Rigid-Flexible Coupling Model and Dynamic Analysis of Rocket Sled

2011 ◽  
Vol 346 ◽  
pp. 447-454
Author(s):  
Jian Hua Zhang ◽  
Shou Shan Jiang
Keyword(s):  
Boundary Conditions ◽  
Multibody System ◽  
Simulation Method ◽  
Coupling Model ◽  
Reliable Data ◽  
Dynamics Analysis ◽  
Post Processing ◽  
Element Analysis ◽  
Flexible Coupling ◽  
Analysis Theory

The Dynamics Analysis & Simulation of the Rocket Sled were done based on Multibody System Dynamics and Finite Element Analysis Theory. The most difficult work in the analysis was establishing the boundary conditions of the rocket sled. The paper made this kind of attempt. Then the relevant post processing figures and data were obtained, thereby providing the designer and manufacturer with detailed and reliable data. The conclusion is the simulation method is more effective than those before and the boundary conditions is correct and acceptable.

Kinematic and Dynamic Stress Analysis of the Structural System of Wheel Loader Based on the Rigid-Flexible Coupling

2013 ◽  
Vol 650 ◽  
pp. 420-425
Author(s):  
Xi Jian Zheng ◽  
Cong Qi Yuan ◽  
Xiao Hua Chang ◽  
Yun Peng Li ◽  
Xiao Wei Gao
Keyword(s):  
Dynamic Stress ◽  
Dynamics Simulation ◽  
Structural System ◽  
Flexible Coupling ◽  
Work Cycle ◽  
Coupling Dynamics ◽  
Rigid Model ◽  
Virtual Prototyping Technology ◽  
Dynamic Stress Analysis ◽  
Wheel Loaders

Based on the rigid-flexible coupling virtual prototyping technology, the entities model of wheel loaders structural system was established by using Pro/E, then it was imported into the ADAMS environment and constraints were added to create a rigid model, and the corresponding rigid body was replaced by the model neutral file generated by ANSYS, thereby the rigid-flexible coupling virtual prototype was established. The speed and acceleration curve of bucket in a work cycle, the dynamic stress of link and the rear frame was achieved, and the dynamic characteristics of the bucket was analyzed. This paper can provide a reference for similar models of rigid-flexible coupling dynamics simulation.

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.

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.

Dynamics Analysis of a Filippov Pest Control Model with Time Delay

2021 ◽  
pp. 105865
Author(s):  
Ayman A. Arafa ◽  
Soliman A.A. Hamdallah ◽  
Sanyi Tang ◽  
Yong Xu ◽  
Gamal M. Mahmoud
Keyword(s):  
Time Delay ◽  
Pest Control ◽  
Control Model ◽  
Dynamics Analysis
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