Dynamic Simulation for Driver-Tricycle-Road System with Rigid-Flexible Coupling

2011 ◽  
Vol 421 ◽  
pp. 240-245
Author(s):  
Xiang Han
Keyword(s):  
Dynamic Simulation ◽  
Dynamic Theory ◽  
Dynamic Performance ◽  
Flexible Body ◽  
Tire Model ◽  
Performance Simulation ◽  
Flexible Coupling ◽  
The Road ◽  
Coupling Dynamic ◽  
Coupling Dynamic Model

Performance simulation for driver-tricycle-road hasn’t been reported currently. According to rigid-flexible coupling dynamic theory, this article took the frame and the spring as the spatial flexible body, used the UA tire model, considered the engine and the road surface drove, established tricycle rigid-flexible coupling dynamic model based on driver-tricycle-road environment and simulated its system modality, acceleration and brake dynamic characteristic. The simulation result indicated this tricycle has the good dynamic performance and the conclusion has the important project practical value.

Research on the Initial Disturbance of Vehicular Missile with System Vibration Analysis

2012 ◽  
Vol 625 ◽  
pp. 134-139 ◽  
Author(s):  
Chong Zhang ◽  
Yi Jiang
Keyword(s):  
Flow Field ◽  
Dynamic Simulation ◽  
Vibration Analysis ◽  
Jet Flow ◽  
Initial Disturbance ◽  
Flexible Coupling ◽  
Study Results ◽  
System Vibration ◽  
Coupling Dynamic ◽  
Coupling Dynamic Model

This paper is based on the complex multiple vehicular missile launch simulation model, researches the influence of combustion jet flow to the initial disturbance of missile. It establishes rigid-flexible coupling dynamic model by use of Adams and Ansys, and calculates the value of combustion jet flow field in missile box by means of Fluent. The rigid-flexible coupling dynamic simulation for the whole launch process is carried out. The study results show that the simulation with loading jet flow can accurately tend to real launch environment, it has great significance to optimize the simulation and to improve the accuracy of the simulation.

Rigid–flexible coupling dynamics analysis with joint clearance for a 5-DOF hybrid polishing robot

Robotica ◽  
2021 ◽  
pp. 1-21
Author(s):  
Feng Guo ◽  
Gang Cheng ◽  
Shilin Wang ◽  
Jun Li
Keyword(s):  
Dynamic Model ◽  
Parallel Manipulator ◽  
Dynamic Properties ◽  
Dynamic Performance ◽  
Joint Clearance ◽  
Motion Error ◽  
Flexible Coupling ◽  
Coupling Dynamic ◽  
Equivalent Load ◽  
Coupling Dynamic Model

SUMMARY Considering the polishing requirements for high-precision aspherical optical mirrors, a hybrid polishing robot composed of a serial–parallel manipulator and a dual rotor grinding system is proposed. Firstly, based on the kinematics of serial components, the equivalent load model for the parallel manipulator is established. Then, the elastodynamic model of kinematic branched-chains of the parallel manipulator is established by using the spatial beam element, and the rigid–flexible coupling dynamic model of the polishing robot is obtained with Kineto-elasto dynamics theory. Further, considering the dynamic properties of the joint clearance, the rigid–flexible coupling dynamic model with the joint clearance for the polishing robot is established. Finally, the equivalent load distribution of the parallel manipulator is analyzed, and the effect of the branched-chain elasticity and joint clearance on the motion error of the polishing robot is studied. This article provides a theoretical basis for improving the motion accuracy and dynamic performance of the hybrid polishing robot.

Dynamic Simulation Analysis of Shipborne Missile Launching under High-Wave-Level Environment

2012 ◽  
Vol 569 ◽  
pp. 380-385
Author(s):  
Zhou Zhong ◽  
Yi Jiang ◽  
Yong Yuan Li ◽  
Chong Zhang
Keyword(s):  
Dynamic Response ◽  
Dynamic Model ◽  
Dynamic Simulation ◽  
Simulation Analysis ◽  
Simulation Method ◽  
Flexible Coupling ◽  
High Wave ◽  
Model And Simulation ◽  
Coupling Dynamic ◽  
Coupling Dynamic Model

In order to study the dynamic response of shipborne missile vertical launching under high-wave-level environment, the rigid-flexible coupling dynamic model of launching system was built by ways of virtual prototype technology. According to simulations for different launching conditions, missile attitude parameters were acquired, and interference of various parts was analyzed. The result shows that the dynamic model and simulation method proposed in this paper are effective and practicable.

Study on Geometry Filtering Phenomenon and Flexible Car Body Resonant Vibration of Articulated Trains

2013 ◽  
Vol 787 ◽  
pp. 542-547 ◽  
Author(s):  
Dao Gong ◽  
Yue Jia Gu ◽  
Jin Song Zhou
Keyword(s):  
Low Frequency ◽  
Ride Quality ◽  
Green Functions ◽  
Resonant Vibration ◽  
Flexible Coupling ◽  
Car Body ◽  
Articulated Vehicles ◽  
Coupling Dynamic ◽  
Track Irregularity ◽  
Coupling Dynamic Model

A vertical rigid-flexible coupling dynamic model of three articulated vehicles with car body flexibility is established, Green functions are utilized to solve the partial differential equation of each car body, and the mechanism of car body flexible resonance is analyzed. Results show that geometry filtering phenomenon exists in articulated train, when the car body first vertical bending frequency coincides with the frequencies which have the peak values of car body bounce acceleration transmissibility, resonant vibration of flexible car body will happen; The energy of track irregularity decreases rapidly with the increasing frequency, so it is important to avoid the car body resonance at low frequency; If the first vertical bending frequency of car body is greater than a certain value, the flexible resonance will have little effect on the ride quality.

Numerical Analysis for Dynamic Characteristics of New Launcher with Coupled Rigid and Flexible Motion

2010 ◽  
Vol 34-35 ◽  
pp. 44-49 ◽  
Author(s):  
Ying Ze Wang
Keyword(s):  
Numerical Simulation ◽  
Numerical Analysis ◽  
Dynamic Characteristics ◽  
High Performance ◽  
Coupling Effect ◽  
The Other ◽  
Flexible Coupling ◽  
Simulation Based ◽  
Coupling Dynamic ◽  
Coupling Dynamic Model

This paper is concerned with an analysis of the dynamic characteristics of the high performance launcher—rarefaction wave gun(RAVEN) by numerical simulation. Based on its launch mechanism and launch structure, a rigid-flexible coupling dynamic model which considered the coupling effect between the flexible virbation of the launch barrel and the motion behaviors of the other parts of the RAVEN is established via a subsystems method. The actual motion of the projectile and inertial breech during the lauching are described by the interior ballistic equations of the RAVEN. The dynamic characterisitcs of RAVEN is illustrated by the numerical simulation about a small caliber launcher, and the interaction between launch barrel and the other parts is also studied.

Study on Meshing Force and Rigid-Flexible Coupling Dynamic Simulation of Cycloid Drive

2014 ◽  
Vol 1039 ◽  
pp. 36-43
Author(s):  
De Yu Su ◽  
Shan Ming Luo ◽  
Jian Wang
Keyword(s):  
Dynamic Simulation ◽  
Equivalent Stress ◽  
Theoretical Method ◽  
Comparison Study ◽  
Ansys Software ◽  
Flexible Coupling ◽  
Gear Teeth ◽  
Gear Design ◽  
Maximum Equivalent Stress ◽  
Coupling Dynamic

The meshing force between pin wheels and gear teeth of modified and standard cycloidal gears is calculated. The parametric model of cycloidal gear and pin wheels is built. The flexible processing of cycloidal gear and pin wheel is conducted using Ansys software. The virtual prototype of cycloid reducer is built. The dynamic simulation of rigid-flexible coupling of modified and standard cycloidal gears has been developed, respectively. The meshing force with friction is calculated and the maximum equivalent stress is obtained. A comparison study of the meshing force using theoretical method is also carried out. It is significant to provide theoretical and technical supports for cycloidal gear design.

Rigid-Flexible Coupling Dynamic Analysis of Excavator Drive Axle

2012 ◽  
Vol 268-270 ◽  
pp. 1053-1057
Author(s):  
Jin Ze Li
Keyword(s):  
Simulation Model ◽  
Dynamic Simulation ◽  
Initial Response ◽  
Basic Structure ◽  
Hysteresis Phenomenon ◽  
Flexible Coupling ◽  
Dynamic Simulation Model ◽  
Coupling Dynamic ◽  
Drive Axle ◽  
Multi Body

Based on drive axle basic structure of the wheel excavator, the paper established virtual prototype simulation model and built drive axle rigid-flexible coupling multi-body dynamic simulation model. According to dynamic simulation response results, it explored the curves of flexible body changed more smoothly when it reached steady state, as gear meshing force of key parts. Initial response of flexible shaft was more violent than multi-rigid body system, and the maximum mutation value reaching about 7%, where has hysteresis phenomenon. The research can supply important theory basis for the improving of wheel excavator drive axle working performance.

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