Simulation Research of Top-Hung Mechanism for Open and Close

2014 ◽  
Vol 644-650 ◽  
pp. 416-420
Author(s):  
Xu Zhou ◽  
Ying Wu
Keyword(s):  
Simulation Analysis ◽  
Reaction Force ◽  
Three Dimensional ◽  
Revolute Joint ◽  
Initial Values ◽  
Support Reaction ◽  
Vertical Location ◽  
Optimization Parameters ◽  
Reaction Forces ◽  
Set Up

For the purpose of researching the top-hung mechanism for open and close and the improvement and use of the mechanism, improving the work efficiency, the three-dimensional solid model of the mechanism was established with ADAMS. Each part of the model in ADAMS was set up. Simulation analysis on the working process of the mechanism was achieved. The structure optimization parameters of the mechanism were obtained. The result proves that when the vertical location of the upper endpoint of lid was increased the total support reaction force acting on the lower endpoint of lower rocker by frame reduced. When the horizontal location of revolute joint of lower rocker and frame, the horizontal location of revolute joint of lower rocker and lid were increased the total support reaction forces acting on the lower endpoint of lower rocker by frame added. The sensitivities of the total support reaction forces acting on the lower endpoint of lower rocker by frame on the initial values of the locations of revolute joint of lower rocker and link, the horizontal location of revolute joint of lower rocker and frame are greater. The sensitivities of the total support reaction forces acting on the lower endpoint of lower rocker by frame on the initial values of the vertical location of revolute joint of upper rocker and link, the horizontal location of revolute joint of the lower rocker and lid are smaller. The sensitivity of the total support reaction force acting on the lower endpoint of lower rocker by frame on the initial value of the vertical location of the upper endpoint of lid are least.

Simulation Research of Six-Bar Mechanism for Open and Close

2014 ◽  
Vol 644-650 ◽  
pp. 162-166
Author(s):  
Xu Zhou ◽  
Ying Wu
Keyword(s):  
Simulation Analysis ◽  
Three Dimensional ◽  
Horizontal Displacement ◽  
Working Process ◽  
Simulation Research ◽  
Revolute Joint ◽  
Initial Values ◽  
Vertical Location ◽  
Optimization Parameters ◽  
Set Up

For the purpose of researching the six-bar mechanism for open and close and the improvement and use of the mechanism, improving the work efficiency, the three-dimensional solid model of the mechanism was established with ADAMS. Each part of the model in ADAMS was set up. Simulation analysis on the working process of the mechanism was achieved. The structure optimization parameters of the mechanism were obtained. The result proves that when the vertical location of the upper endpoint of lid were increased the horizontal displacement of the lower endpoint of lid reduced. When the locations of revolute joint of lower rocker and link, the horizontal location of revolute joint of lower rocker and lid, the opening force acting on the lower endpoint of lid were increased the horizontal displacement of the lower endpoint of lid added. The sensitivities of the horizontal displacement of the lower endpoint of lid on the initial values of the locations of revolute joint of lower rocker and link, the horizontal location of revolute joint of lower rocker and lid, the horizontal location of revolute joint of lower rocker and frame are greater. The sensitivities of the horizontal displacement of the lower endpoint of lid on the initial values of the vertical location of revolute joint of upper rocker and link, the vertical location of the upper endpoint of lid, the opening force acting on the lower endpoint of lid are smaller.

Simulation Research of Five-Bar Pneumatic Clamping Mechanism

2013 ◽  
Vol 456 ◽  
pp. 28-31
Author(s):  
Ying Wu ◽  
Xu Zhou
Keyword(s):  
Driving Force ◽  
Simulation Analysis ◽  
Three Dimensional ◽  
Force Transmission ◽  
Simulation Research ◽  
Revolute Joint ◽  
Rotary Actuator ◽  
Vertical Location ◽  
Optimization Parameters ◽  
Set Up

For being convenient for researching the force transmission characteristic and the improvement and use of five-bar pneumatic clamping mechanism, for improving the dynamic work efficiency, for reducing energy consumption, the three-dimensional solid model of the mechanism was established with ADAMS. Each part of the model in ADAMS was set up. Simulation analysis on the working process of the mechanism was achieved. The structure optimization parameters of the mechanism were obtained. The result proves that the vertical location of revolute joint of pneumatic rotary actuator and rocker, the locations of revolute joint of pneumatic rotary actuator and frame have less impact on the maximum driving force of pneumatic rotary actuator. The horizontal location of pneumatic rotary actuator and rocker, the locations of revolute joint of rocker and frame, the locations of revolute joint of link and block have greater impact on the maximum driving force of pneumatic rotary actuator.

Simulation Research of Six-Bar Slider-Crank Mechanism

2013 ◽  
Vol 655-657 ◽  
pp. 568-572 ◽  
Author(s):  
Ying Wu ◽  
Xu Zhou
Keyword(s):  
Simulation Analysis ◽  
Three Dimensional ◽  
Force Transmission ◽  
Simulation Research ◽  
Revolute Joint ◽  
Vertical Location ◽  
Optimization Parameters ◽  
Set Up ◽  
Driving Torque ◽  
Crank Mechanism

For being convenient for researching the force transmission characteristic and the improvement and use of six-bar slider-crank mechanism, for improving the dynamic work efficiency, for reducing energy consumption, the three-dimensional solid model of the mechanism was established with ADAMS. Each part of the model in ADAMS was set up. Simulation analysis on the working process of the mechanism was achieved. The structure optimization parameters of the mechanism were obtained. The result proves that the locations of revolute joint of rocker and frame, the locations of revolute joint of link and block, the vertical location of revolute joint of upper link and rocker, the horizontal locations of revolute joint of upper link and link are almost no impact on the driving torque of crank. The locations of revolute joint of crank and upper link, the horizontal location of revolute joint of upper link and rocker, the vertical location of revolute joint of upper link and link have less impact on the driving torque of crank. The locations of revolute joint of crank and frame have greater impact on the maximum driving torque of crank.

Modeling and Optimization Research of a Planar Six Bar Mechanism

2012 ◽  
Vol 215-216 ◽  
pp. 921-925
Author(s):  
Ying Wu ◽  
Xu Zhou
Keyword(s):  
Simulation Analysis ◽  
Three Dimensional ◽  
Working Process ◽  
Revolute Joint ◽  
Technical Performance ◽  
Revolute Joints ◽  
Vertical Location ◽  
Vertical Speed ◽  
Optimization Parameters ◽  
Set Up

For being convenient for researching the dynamic characteristic and the improvement and use of the planar six bar mechanism, for improving the dynamic technical performance, the three-dimensional solid model of the mechanism was established with ADAMS. Each part of the model in ADAMS was set up. Simulation analysis on the working process of the mechanism was achieved. The structure optimization parameters of the mechanism were obtained. The result proves that the vertical location of revolute joint of link and rocker, the location of revolute joint of crank and frame, the horizontal locations of two revolute joints of link are almost no impact on the vertical speed of slider. The vertical locations of revolute joint of frame and rocker and revolute joint of block and slider have less impact on the vertical speed and acceleration of slider. The vertical location of revolute joint of link and crank, the horizontal locations of revolute joint of frame and rocker and revolute joint of block and slider have greater impact on the maximum vertical speed and acceleration of slider.

Research and Simulation of Working Mechanism of Small Shaper

2011 ◽  
Vol 127 ◽  
pp. 202-206
Author(s):  
Ying Wu
Keyword(s):  
Simulation Analysis ◽  
Three Dimensional ◽  
Working Process ◽  
Working Mechanism ◽  
Revolute Joint ◽  
Technical Performance ◽  
Fluctuation Range ◽  
Optimization Parameters ◽  
Ram Speed ◽  
Set Up

For being convenient for researching the dynamic characteristic and the improvement and use of small shaper, for improving the dynamic technical performance, the three-dimensional solid model of working mechanism was established with ADAMS. Each part of the model in ADAMS was set up. Simulation analysis on the working process of working mechanism was achieved. The structure optimization parameters of working mechanism were obtained. The result proves that the lengths of crank and rocker are almost no impact on the fluctuation range of ram speed. The location of revolute joint between rocker and frame has less impact on the return speed and acceleration of ram. The location of revolute joint between crank and slider impacts greater on the fluctuation range of ram speed.

Dynamics Research of RRR-PRP Planar Six Bar Mechanism

2012 ◽  
Vol 479-481 ◽  
pp. 1530-1534
Author(s):  
Ying Wu
Keyword(s):  
Vertical Velocity ◽  
Simulation Analysis ◽  
Three Dimensional ◽  
Structure Optimization ◽  
Solid Model ◽  
Working Process ◽  
End Points ◽  
Technical Performance ◽  
Optimization Parameters ◽  
Set Up

For being convenient for researching the dynamic characteristic and the improvement and use of RRR-PRP planar six bar mechanism, for improving the dynamic technical performance, the three-dimensional solid model of the mechanism was established with ADAMS. Each part of the model in ADAMS was set up. Simulation analysis on the working process of the mechanism was achieved. The structure optimization parameters of the mechanism were obtained. The result proves that the vertical locations of two end points of rocker are almost no impact on the vertical velocity of slider. The location of block and the horizontal locations of two end points of crank and rocker have less impact on the vertical velocity and acceleration of slider. The vertical locations of two end points of crank have greater impact on the maximum vertical velocity and acceleration of slider.

Numerical Simulation Analysis of Deformation in TIG Welding of I-Steel

2011 ◽  
Vol 189-193 ◽  
pp. 2196-2199
Author(s):  
Ling Li Meng ◽  
Yan Qun Huang ◽  
Ming Liu
Keyword(s):  
Finite Element ◽  
Simulation Analysis ◽  
Three Dimensional ◽  
Element Model ◽  
Welding Parameters ◽  
Gas Tungsten Arc ◽  
Dimensional Finite Element ◽  
Welding Sequences ◽  
Set Up ◽  
Three Dimensional Finite Element

Since it is inconsistent and uncontrollable in the experiment, any variance in specimen dimensions, welding parameters and testing conditions will influence the consistency of testing results to some extent. In this paper, the Finite Element Method(FEM) is employed to solve this problem. A three-dimensional finite element model is established to simulate the deformation of I-steel during gas tungsten arc welding (TIG) with FEM software, which is set up to analysis the deformation of I-steel with different welding sequences.

scholarly journals A data set with kinematic and ground reaction forces of human balance

2017 ◽  
Author(s):  
Damiana A dos Santos ◽  
Claudiane A Fukuchi ◽  
Reginaldo K Fukuchi ◽  
Marcos Duarte
Keyword(s):  
Center Of Pressure ◽  
Reaction Force ◽  
Kinematic Model ◽  
Three Dimensional ◽  
Force Platform ◽  
Whole Body ◽  
Ground Reaction Forces ◽  
Data Set ◽  
Public Data ◽  
Reaction Forces

This article describes a public data set with the three-dimensional kinematics of the whole body and the ground reaction forces (with a dual force platform setup) of subjects standing still for 60 s in different conditions, in which the vision and the standing surface were manipulated. Twenty-seven young subjects and 22 old subjects were evaluated. The data set comprises a file with metadata plus 1,813 files with the ground reaction force (GRF) and kinematics data for the 49 subjects (three files for each of the 12 trials plus one file for each subject). The file with metadata has information about each subject’s sociocultural, demographic, and health characteristics. The files with the GRF have the data from each force platform and from the resultant GRF (including the center of pressure data). The files with the kinematics have the three-dimensional position of the 42 markers used for the kinematic model of the whole body and the 73 calculated angles. In this text, we illustrate how to access, analyze, and visualize the data set. All the data is available at Figshare (DOI: 10.6084/m9.figshare.4525082 ), and a companion Jupyter Notebook (available at https://github.com/demotu/datasets ) presents the programming code to generate analyses and other examples.

scholarly journals A data set with kinematic and ground reaction forces of human balance

2017 ◽  
Author(s):  
Damiana A dos Santos ◽  
Claudiane A Fukuchi ◽  
Reginaldo K Fukuchi ◽  
Marcos Duarte
Keyword(s):  
Center Of Pressure ◽  
Reaction Force ◽  
Kinematic Model ◽  
Three Dimensional ◽  
Force Platform ◽  
Whole Body ◽  
Ground Reaction Forces ◽  
Data Set ◽  
Public Data ◽  
Reaction Forces

This article describes a public data set with the three-dimensional kinematics of the whole body and the ground reaction forces (with a dual force platform setup) of subjects standing still for 60 s in different conditions, in which the vision and the standing surface were manipulated. Twenty-seven young subjects and 22 old subjects were evaluated. The data set comprises a file with metadata plus 1,813 files with the ground reaction force (GRF) and kinematics data for the 49 subjects (three files for each of the 12 trials plus one file for each subject). The file with metadata has information about each subject’s sociocultural, demographic, and health characteristics. The files with the GRF have the data from each force platform and from the resultant GRF (including the center of pressure data). The files with the kinematics have the three-dimensional position of the 42 markers used for the kinematic model of the whole body and the 73 calculated angles. In this text, we illustrate how to access, analyze, and visualize the data set. All the data is available at Figshare (DOI: 10.6084/m9.figshare.4525082 ), and a companion Jupyter Notebook (available at https://github.com/demotu/datasets ) presents the programming code to generate analyses and other examples.

Dynamic Response of Human Legs due to Horizontal Jump

2012 ◽  
Author(s):  
Srikanth Ravuri ◽  
Fred Barez ◽  
David Wagner ◽  
Jim Kao
Keyword(s):  
Reaction Force ◽  
Three Dimensional ◽  
Simulation Software ◽  
Leap Motion ◽  
Biomechanical Simulation ◽  
Maximum Reaction ◽  
Internal Joint ◽  
Joint Reaction Forces ◽  
Reaction Forces ◽  
Distal Direction

Jumping is a coordinated extension of the human body through combined strength and agility to perform a leap motion far enough for the feet to land on the ground. However, the repeated reaction forces and the resulting stresses on the ankle, knee and hip joints may cause injuries to a person. A primary mechanism of such injuries is suggested to be the acute high impact loads experienced during the landing in a horizontal jump. The goal of this study is to determine the reaction force distribution at the joints in the lower extremities during the horizontal jump. A detailed biomechanical system was constructed to calculate the reaction forces generated during the horizontal jump. The horizontal jump kinematics of a participant was measured using a three-dimensional motion capture system and the landing forces were measured using two force plates. Biomechanical simulation software was used to calculate the internal joint reaction forces at the ankle, knee, and hip. It was determined that the maximum reaction forces primarily occurred in the proximo/distal direction of the hip, 2,300 N; and ankle, 2,700 N. However, at the knee joint, the maximum reaction force was determined to be in antero/posterior direction, at 2,000 N; and proximo/distal direction, at 2,100 N, respectively.

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