Dynamics Simulation Study on 3-TPS/TP Parallel Robot

2012 ◽  
Vol 215-216 ◽  
pp. 955-958 ◽  
Author(s):  
Ji Man Luo ◽  
Zhi Hui Xing ◽  
Yang Jiang ◽  
Wen Zhao Wang ◽  
Xiao Tong Zhang
Keyword(s):  
Simulation Study ◽  
Research Work ◽  
Parallel Robot ◽  
Dynamics Simulation ◽  
Dynamics Model ◽  
Lagrange Method ◽  
The Relationship

The purpose of this research work is to find the relationship between the movement and force (torque) of 3-TPS/TP parallel robot, the Lagrange method is adopted to establish the dynamics model, and the results of the simulation by ADAMS are given in this paper. The curve is about the change of force come from every joint of active chains with time. It provides a lot of data for further reference to choose the drive device.

Dynamics Analysis of 3-TPS/TP Parallel Robot’s Moving Platform

2012 ◽  
Vol 184-185 ◽  
pp. 1655-1659 ◽  
Author(s):  
Ji Man Luo ◽  
Zhi Hui Xing ◽  
Yang Jiang ◽  
Xiao Tong Zhang ◽  
Yu Zhen An
Keyword(s):  
Driving Force ◽  
Robot Control ◽  
Research Work ◽  
Dynamics Analysis ◽  
Dynamics Model ◽  
Lagrange Method ◽  
Moving Platform ◽  
Simulation Results ◽  
The Relationship ◽  
Reliable Basis

The purpose of this research work is to find the relationship between the driving force (F) of 3-TPS/TP parallel robot’s moving platform and the motion of tool tip, and provide reliable basis for the robot control. The Lagrange method is adopted to establish the dynamics model, and the results of the simulation by MATLAB are given in this paper. The movement of tool tip can be described by the angle α and β rotated around X-axis and Y-axis respectively, and the displacement z in the Z direction. The simulation results show that the value of F increases with the increase of the value of z, namely when the total length of the transmission rod decreases, F will increase to overcome the resistance caused by telescoping.

Optimum Design of Local Cam Profile of a Valve Train

2010 ◽  
Vol 224 (11) ◽  
pp. 2487-2492 ◽  
Author(s):  
W J Qin ◽  
J Q He
Keyword(s):  
System Dynamics ◽  
Valve Train ◽  
Dynamic Responses ◽  
Dynamics Simulation ◽  
Body System ◽  
Dynamics Model ◽  
Adams Software ◽  
Cam Profile ◽  
Multi Body ◽  
The Relationship

In this paper, optimization of the local cam profile of a valve train modelled by a parameterized Bezier curve is described. Dynamic responses of the valve train are simulated through its multi-body system dynamics model built using ADAMS software. The kriging method is used to build the surrogate model, which presents the relationship between dynamic responses resulting from the multi-body system dynamics simulation and the parameters of the local Bezier profile. The local cam profile is optimized through a generic algorithm, such that the acceleration peak at the valve open phase is reduced significantly.

Two DOF Parallel Robot Design and Dynamics Simulation for Quick Picking

2012 ◽  
Vol 236-237 ◽  
pp. 448-453
Author(s):  
De Xue Bi ◽  
Chao Zhuo Guo ◽  
Xu Man Zhang
Keyword(s):  
Three Dimensional ◽  
Parallel Robot ◽  
Experimental Results ◽  
Dynamics Simulation ◽  
Solid Model ◽  
Robot Design ◽  
Dynamics Model ◽  
Simulation And Control ◽  
Design Mechanism ◽  
And Control

This paper presents a new design approach of parallel robot for quick grasp based on parallelogram mechanism，and derives the dynamics model. Using SimMechanics toolbox and simlink toolbox in Matlab Software, and guiding the three dimensional solid model into it, the dynamics simulation and control on two DOF parallel robot is designed and studied. The experimental results show that the design mechanism obtains the anticipated requirement.

The Association between Depression and Gastroesophageal Reflux based on Phylogenetic Analysis of miRNA Biomarkers

2020 ◽  
Vol 27 (38) ◽  
pp. 6536-6547 ◽  
Author(s):  
Yi-Hau Chen ◽  
Hsiuying Wang
Keyword(s):  
Phylogenetic Analysis ◽  
Major Depression ◽  
Gastroesophageal Reflux Disease ◽  
Gastroesophageal Reflux ◽  
Reflux Disease ◽  
Research Work ◽  
Epidemiological Evidence ◽  
The Relationship ◽  
Global Population ◽  
Shed Light

A number of clinical studies have revealed that there is an association between major depression (MD) and gastroesophageal reflux disease (GERD). Both the diseases are shown to affect a large proportion of the global population. More advanced studies for understanding the comorbidity mechanism of these two diseases can shed light on developing new therapies of both diseases. To the best of our knowledge, there has not been any research work in the literature investigating the relationship between MD and GERD using their miRNA biomarkers. We adopt a phylogenetic analysis to analyze their miRNA biomarkers. From our analyzed results, the association between these two diseases can be explored through miRNA phylogeny. In addition to evidence from the phylogenetic analysis, we also demonstrate epidemiological evidence for the relationship between MD and GERD based on Taiwan biobank data.

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