Research on Dynamics Simulation of Buffering Process of Docking Mechanism

2014 ◽  
Vol 701-702 ◽  
pp. 748-752
Author(s):  
Yuan Zhang ◽  
Li Li Zhou ◽  
Jian Wang ◽  
Chang Zhen Fan

On-orbit service technology can extend the working life of the spacecraft, and improve the ability to perform various tasks. Docking mechanism is the key equipment of the space docking. The cushion performance of the system determines the dynamic characteristics in the docking process, and it is one of the important factors influencing the docking success or not. It is established that mathematical modeling of the new grasping mechanism in the buffering process, due to lack of the experiment equipments, the dynamic simulation on computer is an effective method to test and verify the parameters or evaluate the performance of the buffer system designed. Simulation analysis is conducted to get the corresponding buffer force for four different sets of buffer parameter, and it provides important basis for docking cushioning structure optimization.

2014 ◽  
Vol 940 ◽  
pp. 132-135 ◽  
Author(s):  
Yi Fan Zhao ◽  
Ling Sha ◽  
Yi Zhu

Established the dynamics simulation analysis model of crane hoisting mechanism based on the theory of dynamics in Adams software, and then through the three dimensional model of lifting mechanism dynamics entities, the constraints, load, drive can be added, the motion law can be defined to simulation analysis the change of the force of wire rope, the change of displacement, velocity and acceleration of lifting weight in the lifting process. On the basis of the simulation results, it can make a great improvement for the structure of crane and provide a meaningful theoretical reference for the hoisting machinery innovation design.


2014 ◽  
Vol 487 ◽  
pp. 313-318
Author(s):  
Yuan Zhang ◽  
Jian Wang ◽  
Yan Song ◽  
Li Li Sun

The new type of three jaw docking mechanism is designed for use in orbiting spacecraft, the mathematical model is given and its working characteristics are analyzed. By establishing the mathematical model of the interaction of the parts under the different coordinate system, it is obtained that the corresponding kinematic characteristics; contact collision dynamics model is established by using the Hertz model theory, dynamic equation is established by Newton-Euler method, and simulation analysis are carried out by using the dynamics simulation software ADAMS, through the simulation analysis of three groups with different initial conditions, the results show that it achieve reliable grasp with good performance, it provides the lock claw curve in contact collision force and movement characteristics curve. These curves provide reference to improve the performance of docking mechanism.


2010 ◽  
Vol 97-101 ◽  
pp. 3489-3492
Author(s):  
Yi Hong Zhao ◽  
Rong Fa Chen

A rotatable wheeled mobile robot is studied to develop a ground robot applied to special rough environment, such as turning a somersault. The system structure and design are described in this paper. The dynamic modeling of turning states is inferred by Alembert Principle. Some parameters are analyzed combining driving ability. The robot’s condition of overthrow and reset is gained. The dynamic simulation analysis of the turning state are realized with ADAMS software, the main factors influencing turning function are found. The results help to design the wheeled mobile robot, which can run successfully in a complicated environment and develop its adaptability.


2011 ◽  
Vol 295-297 ◽  
pp. 2548-2551
Author(s):  
De Gong Chang ◽  
Cun Sheng Zhang

The simulation analysis and research on crank linkage mechanism, which is the core part of the engine, are of important significance. Based on related theory, this paper introduces a simulation analysis method for crank linkage mechanism, which is using Pro/E. First of all, the 3D model of the mechanism is build; all the components are modeled and assembled. Then dynamic simulation for the crank linkage mechanism by using PRO/Mechanism is carried on, the result of characteristics of motion, stress, etc of the mechanism are shown. A more effective method about the simulation analysis of crank linkage mechanism is introduced in this paper.


2018 ◽  
Vol 4 (2) ◽  
pp. 129-140 ◽  
Author(s):  
Jingyu Huang ◽  
Xiong Zhou ◽  
Liwei Shang ◽  
Zhewei Wu ◽  
Weinan Xu ◽  
...  

Background: In this article, the TR08 car of the Shanghai Magnetic Train Demonstration Line was prototyped and a multi-body dynamics simulation model was established. And based on the low-interference track irregularity power spectrum in Germany, track irregularity data was obtained. Used dynamic simulation software, completed the dynamic simulation analysis of the vehicle-rail model controlled by the proportion-integral-derivative control system PID parameters. It can be concluded that the vibration of trains passing through irregular tracks at different speeds, and evaluated its comfort. The optimal solution for the control of the PID parameters of the train also has been derived. Aim: Evaluation of operational comfort and suspension gap control effect of Shanghai Maglev Train Demonstration Line by simulation analysis. Materials and methods of the studies: Simulation analysis. Results: The vibration acceleration and suspension gap of Shanghai Maglev Train Demonstration Line has been obtained. Conclusion: By adjusting the parameters of PID control system, the vibration acceleration of train can be reduced and the ride comfort can be improved.


2014 ◽  
Vol 971-973 ◽  
pp. 458-462
Author(s):  
Yuan Li ◽  
Jie Yue ◽  
Qiu Bo Huang ◽  
Yan Ping Sun

Completed solid model of hydraulic mechanical power split CVT using Pro/E software basing on the transmission principle, achieved the whole transmission without interference assemble by the interference analysis and checking the gap. Carried on dynamics simulation analysis using ADAMS software, obtained the variation of plungers’ centroid and the bearing force in the rear end cover, it laid the theoretical foundation for subsequent experimental analysis.


2011 ◽  
Vol 138-139 ◽  
pp. 111-116
Author(s):  
Wei Han ◽  
Yi Yong Huang ◽  
Xiang Zhang ◽  
Xiao Qian Chen

The nature of buffer system is a very important factor of determining the dynamic properties for the success of docking operation in space. The current buffer system is too large and highly complicated, which is not suitable for microspacecraft for On Orbit Servicing (OOS). In this paper, a new type of probe-cone docking mechanism with flexible docking cone as buffer system was presented, and the impact force was simulated using the explicit finite element code, LS-DYNA. Then, the time history of the impact process such as the velocity of docking probe and the docking cone’s displacement was computed under the given impact velocity and initial deviation. In the end, the influence of the wall thickness of docking cone on the impact force was analyzed. The conclusion that the flexible docking cone can greatly help to reduce the maximum impact force by more than 50% provides a basis for the engineering design of the buffer system.


2013 ◽  
Vol 842 ◽  
pp. 347-350 ◽  
Author(s):  
Li Ni ◽  
Ya Yu Huang ◽  
Chong Kai Zhou

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.


2017 ◽  
Vol 20 (1) ◽  
pp. 82-92 ◽  
Author(s):  
Kishore Sarma ◽  
Shubhadeep Roychoudhury ◽  
Sudipta Bora ◽  
Budheswar Dehury ◽  
Pratap Parida ◽  
...  

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