Study on Engine Kinematics and Dynamics Simulation Based on COSMOSMotion

2012 ◽  
Vol 503-504 ◽  
pp. 731-734
Author(s):  
Xiao Xu Liu ◽  
Min Chen ◽  
Ai Hua Tang
Keyword(s):  
Virtual Prototype ◽  
Dynamics Simulation ◽  
Kinematics And Dynamics ◽  
Engine Model ◽  
Kinematics Simulation ◽  
Simulation Based ◽  
Calculation Results ◽  
Simulation Results ◽  
Dynamics Simulations

The engine model with 4 cylinders is built by SolidWorks, the kinematics and dynamics simulations of the engine virtual prototype are done by COSMOSMotion, the results of kinematics simulation are checked, there are very small errors between the simulation results and the calculation results according to formulas. The mainly results of dynamics simulation are given. The simulation result consists with the parameters of the engine.

The Dynamic Simulation of Engine Slider-Crank Mechanism Based on ANSYS and ADAMS

2013 ◽  
Vol 842 ◽  
pp. 347-350 ◽  
Author(s):  
Li Ni ◽  
Ya Yu Huang ◽  
Chong Kai Zhou
Keyword(s):  
Rigid Body ◽  
Dynamic Simulation ◽  
Simulation Analysis ◽  
Coupled Model ◽  
Dynamics Simulation ◽  
Kinematics And Dynamics ◽  
Kinematics Simulation ◽  
Bias Model ◽  
Simulation Results ◽  
Crank Mechanism

Establishing bias and central entity model of slider-crank mechanism in this paper, then the bias model is imported into the ADAMS for kinematics simulation, and we can get the sliders law of motion. Then using ANSYS and ADAMS jointly to establish the multiple rigid body and the coupled model of slider-crank mechanism, and carrying on kinematics and dynamics simulation analysis to compare the two simulation results. Through build simulation of the coupled model with UG, ANSYS and ADAMS, the result of this calculation is better to reflect the true movement of the mechanism.

Molecular Dynamics Simulation Based Cohesive Zone Representation of Intergranular Fracture Processes in Bicrystalline Graphene

2020 ◽  
Author(s):  
MD Imrul Reza Shishir ◽  
Alireza Tabarraei
Keyword(s):  
Molecular Dynamics ◽  
Grain Boundaries ◽  
Cohesive Zone ◽  
Cohesive Zone Model ◽  
Dynamics Simulation ◽  
Zone Model ◽  
Zone Method ◽  
Simulation Based ◽  
Dynamics Simulations ◽  
Fracture Processes

Abstract The fracture properties of various grain boundaries in graphene are investigated using the cohesive zone method (CZM). Molecular dynamics simulations are conducted using REBO2+S potential in order to develop a cohesive zone model for graphene grain boundaries using a double cantilever bicrystalline graphene sheet. The cohesive zone model is used to investigate the traction–separation law to understand the separation-work and strength of grain boundaries.

Molecular Dynamics Simulations on the Chain Fold During the Isothermal Orientation of n-Alkanes on Graphene

2021 ◽  
Author(s):  
Zhi Meng Zhang ◽  
Hua Yang ◽  
Jun Xia Shi ◽  
Jia Jun Wang ◽  
Zheng Guo Huang ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Orientation ◽  
Dynamics Simulation ◽  
Ordered Structure ◽  
Graphene Surface ◽  
Parallel Orientation ◽  
Chain Folding ◽  
Hydrocarbon Chains ◽  
Simulation Results ◽  
Dynamics Simulations

Abstract The orientation of hydrocarbon chains plays a key role in the applications of organic materials. And chain folding in the process of molecular orientation is also of great significance for the design of organic molecular thin films. The effect of chain length and simulation temperature on the isothermal orientation of n-alkanes on graphene surface is studied by molecular dynamics simulation in this paper. And the chain folding is also described. The n-alkanes can form perpendicular ordered structure, parallel ordered structure or perpendicular orientation at relative low temperature and parallel orientation at relative high temperature on graphene surface. The chain fold happens when long n-alkanes form perpendicular ordered structure on graphene surface. And the simulation results show the interactions of n-alkane−graphene and n-alkane−n-alkane affect chain fold.

Molecular Dynamics Simulations of Nanocomposite Diamond-Like Carbon

2005 ◽  
Author(s):  
G. T. Gao ◽  
J. D. Schall ◽  
K. Van Workum ◽  
P. T. Mikulski ◽  
J. A. Harrison
Keyword(s):  
Molecular Dynamics ◽  
Elastic Constants ◽  
Simulation Method ◽  
Dynamics Simulation ◽  
Diamond Structure ◽  
The Core ◽  
Constant Tension ◽  
Simulation Results ◽  
Dynamics Simulations ◽  
Carbon Network

A constant tension and constant temperature molecular dynamics simulation method was used in the calculations of the elastic constants of the nanocomposite systems. The nanocomposite systems contain a core of sp3 diamond structure surrounded by an amorphous carbon network. The simulation results show that the elastic properties of nanocomposites of diamond-like carbons are closely related to the size of the sp3 diamond core; the bigger the core, the larger the elastic constants, and the system becomes more anisotropic.

Motorcycle Dynamics Simulation Based on Real Road Load

2009 ◽  
Vol 16-19 ◽  
pp. 318-322 ◽  
Author(s):  
Xiao Hui Shi ◽  
Xi Hong Zou ◽  
Quan Shi ◽  
Shun Li Xiao
Keyword(s):  
Simulation Method ◽  
Virtual Prototype ◽  
Dynamics Simulation ◽  
The Road ◽  
Virtual Test ◽  
Road Load ◽  
Simulation Based ◽  
Test Platform ◽  
On The Road ◽  
Motorcycle Dynamics

The motorcycle dynamics simulation method based on the road simulation test and virtual prototype is developed, and a rigid-flexible coupling virtual prototype with test platform of motorcycle is created with CATIA, NASTRAN and ADAMS software. According to two-channel tire-coupled road simulator of MTS Systems Corporation, the simulation model and platform are repetitively refined to fairly high precision by comparing simulation results with experimental results. The iterated excitation signal based on real road load or typical spectrum of different roads is imported into the virtual test platform, the comfort and durability tests of motorcycle can be undertaken to replace road simulator, the test period and cost are greatly reduced, and test security is increased.

scholarly journals Modeling and Kinematics Simulation of a Mecanum Wheel Platform in RecurDyn

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Yunwang Li ◽  
Sumei Dai ◽  
Yuwei Zheng ◽  
Feng Tian ◽  
Xucong Yan
Keyword(s):  
Virtual Prototype ◽  
Mobile System ◽  
Design Quality ◽  
Simulation Experiments ◽  
Motion Models ◽  
Kinematics Simulation ◽  
Simulation Results ◽  
Mecanum Wheel ◽  
Motion Characteristics ◽  
Theoretical Results

The innovative method of modeling and kinematics simulation in RecurDyn are proposed, taking a Mecanum wheel platform(MWP) for omnidirectional wheelchair as research object. In order to study the motion characteristics and mobile performance of the MWP, the virtual prototype simulation model is established in SolidWorks, and virtual prototype simulation is carried out in RecurDyn. The experience of simulation for the MWP in RecurDyn is introduced, and the simulation steps and points for attention are described detailedly. The working states of the mobile system in real environment have been simulated through virtual simulation experiments. Four typical motion models including moving forward, moving laterally, moving laterally in the direction of 45°, and rotation have been simulated in RecurDyn. The simulation results exactly reflect the motion of the MWP. By comparing the simulation results with the theoretical results, there are acceptable errors that are relatively less overall in the simulation results. The simulation results can be used to predict the performance of the platform and evaluate the design rationality, and design quality can be improved according to the exposed problem. This paper can provide reference for the simulation of mobile platform by using RecurDyn.

Thermal Conductivity of Silicon Thin Films Predicted by Molecular Dynamics Simulations and Theoretical Calculation

2011 ◽  
Vol 55-57 ◽  
pp. 1152-1155 ◽  
Author(s):  
Xing Li Zhang ◽  
Zhao Wei Sun
Keyword(s):  
Thermal Conductivity ◽  
Molecular Dynamics ◽  
Boltzmann Transport Equation ◽  
Phonon Transport ◽  
Dynamics Simulation ◽  
Boltzmann Transport ◽  
Silicon Thin Films ◽  
Simulation Results ◽  
Dynamics Simulations ◽  
Good Agreement

Molecular, dynamics simulation and the Boltzmann transport equation are used respectively to analyze the phonon transport in Si thin film. The MD result is in good agreement with the theoretical analysis values. The results show that the calculated thermal conductivity decreases almost linearly as the film thickness reduced and is almost independent of the temperature at the nanoscale. It was observed from the simulation results that there exists the obvious size effect on the thermal conductivity.

Kinematics and Dynamics Simulation of Feed Mechanism of Sewing Machine Based on SimMechanics

2013 ◽  
Vol 694-697 ◽  
pp. 31-35
Author(s):  
Xiao Zheng Dang ◽  
Liang Sheng Zhou ◽  
Bao Cheng Ding
Keyword(s):  
Stress State ◽  
Simulation Model ◽  
Textile Industry ◽  
Dynamics Simulation ◽  
Kinematics And Dynamics ◽  
Sewing Machine ◽  
Machine System ◽  
The Future ◽  
Simulation Results

Planner six-bar mechanism is widely used in the textile industry. In this article, feed mechanism of sewing machine is studied. The kinematics and dynamics simulation model is established for this kind of mechanism. On the basis of it, a relevant simulation is carried out through SimMechanics. Thus, the motion rules and stress state for all parts of mechanism are described vividly. The simulation results show that this method is effective and efficient when the simulation is implemented for a certain machine system. Meanwhile, it provides a foundation for the further research of the mechanism in the future.

The Dynamics Analysis of Rolling Movable Teeth Reducer

2011 ◽  
Vol 221 ◽  
pp. 429-435
Author(s):  
Jun Fei Wu ◽  
Xiao Chen Zhu ◽  
Wei Gao ◽  
Ying Yu
Keyword(s):  
Time Domain ◽  
Optimization Design ◽  
Virtual Prototype ◽  
Dynamics Analysis ◽  
Engineering Analysis ◽  
Input Shaft ◽  
Kinematics Simulation ◽  
Adams Software ◽  
Simulation Results ◽  
The Time Domain

The structure and operating principle of rolling movable teeth reducer are introduced in this paper. Through the virtual prototype technology, the modeling of rolling movable teeth reducer is made by Pro/E software,and is had the kinematics simulation and dynamic analysis by ADAMS software. The simulation results show that the speed curves of the input shaft and the output shaft of rolling movable teeth reducer coincide with the theory transmission. It proves correctness of virtual prototype. The mechanical properties of rolling movable teeth reducer is obtained by the time-domain graph of meshing force. It provides the basis for the optimization design and engineering analysis of reducer.

Kinematics and Dynamics Simulation of a New Type Direct-Drive NC Turret Tool Post

2013 ◽  
Vol 325-326 ◽  
pp. 247-251
Author(s):  
Yuan Xing Dai ◽  
Tian Rui Zhang ◽  
Xue Wei Zhang ◽  
Tian Biao Yu
Keyword(s):  
Axial Load ◽  
3D Model ◽  
Dynamics Simulation ◽  
Kinematics And Dynamics ◽  
Clamping Force ◽  
Actual Situation ◽  
Direct Drive ◽  
Kinematics Simulation ◽  
Motion Process ◽  
New Type

Building 3D model for a new type direct-drive NC Turret tool post, and introduce the model into ADAMS for further kinematics and dynamics simulation. In the kinematics simulation, observing the motion process of the direct-drive NC turret tool post and plots the trajectory of moving parts to a curve. Simulate the force condition of the NC turret tool post in actual situation, calculate the axial load and verify the clamping force in dynamics simulation.

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