Modeling and Kinematics Simulation of HT-CVT Based on Virtual Prototype Technology

2010 ◽  
Vol 44-47 ◽  
pp. 884-888
Author(s):  
Qing Gong Zhang ◽  
Hua Li ◽  
Jin Yao
Keyword(s):  
Hydrodynamic Lubrication ◽  
Three Dimensional ◽  
Gear Ratio ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Traction Drive ◽  
Kinematics Simulation ◽  
Contact Constraint ◽  
Variable Transmission ◽  
Angular Velocities

The three-dimensional model of a Half Toroidal Continuously Variable Transmission (HT-CVT) was established by CAXA solid design. The kinematics simulation of the HT-CVT was realized by replacing the traction drive of elasto-hydrodynamic lubrication (EHL) oil film with the contact constraint joints in ADAMS. The angular velocity curves of the power rollers and the output cone disk on the HT-CVT were obtained. Simulation results demonstrate the fluctuation of the angular velocities on the two power rollers and the output cone disk compares well with the conclusion derived from the actual gear ratio of the HT-CVT.

Kinematics Simulation of a New CVT Based on Virtual Prototype Technology

2014 ◽  
Vol 556-562 ◽  
pp. 1426-1429
Author(s):  
Qing Dun Zeng ◽  
Feng Zhe Tan
Keyword(s):  
Simulation Model ◽  
Hydrodynamic Lubrication ◽  
Kinetic Characteristic ◽  
Three Dimensional ◽  
Drive System ◽  
Three Dimensional Model ◽  
Kinematics Simulation ◽  
Contact Constraint ◽  
Variable Transmission ◽  
Dimensional Simulation

In order to study the kinetic characteristic of a new continuously-variable-transmission (CVT), a three-dimensional model of the CVT was first established by Pro/E solid design and it was saved as Parasolid file format. Then, a kinematics simulation model of drive system of the CVT was established by importing the Parasolid file into ADAMS and the simulation was realized by replacing the traction drive of elasto-hydrodynamic lubrication (EHL) oil film with the contact constraint joints between the input and output wheel discs and the intermediate idler wheels. The simulation results demonstrate that the three-dimensional simulation model of the CVT is accurate, and the equivalent drive system of the CVT is reasonable.

Mechanism Design and Kinematics Simulation of Massage Mechanical Arm

2011 ◽  
Vol 101-102 ◽  
pp. 279-282 ◽  
Author(s):  
Jun Xie ◽  
Jun Zhang ◽  
Jie Li
Keyword(s):  
Mechanism Design ◽  
Three Dimensional ◽  
Forward Kinematics ◽  
Kinematics Analysis ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Kinematics Model ◽  
Kinematics Simulation ◽  
The Common ◽  
Executive Mechanism

Based on the characteristics and the common massage manipulations of Chinese medical massage, a practical series mechanical arm was presented to act the manipulations with the parallel executive mechanism. Forward kinematics was solved by the Denavit-Hartenberg transformation after the kinematics model of the arm was established. And the three-dimensional model of the arm was created by Pro/E and was imported into ADAMS for the kinematics analysis. The results indicated that the common massage manipulations could be simulated by the arm correctly and flexibly, and it verified the accuracy of the mechanism design of the arm.

Design of noncircular bevel gear with concave pitch curve

2012 ◽  
Vol 227 (3) ◽  
pp. 542-553 ◽  
Author(s):  
Kan Shi ◽  
Jiqiang Xia ◽  
Chunjie Wang
Keyword(s):  
Design Method ◽  
Three Dimensional ◽  
Bevel Gear ◽  
Polar Coordinate System ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Profile Equation ◽  
Variable Transmission ◽  
Polar Coordinate ◽  
Pitch Curve

Noncircular bevel gear can achieve variable transmission between intersecting axes. This article proposes the design method of high-order noncircular bevel gear with concave pitch curve. The parametric equations for driving and driven gear, addendum and dedendum surface under given transmission ratio and axis angle are established in a spherical polar coordinate system. The tooth profile equation of noncircular bevel gear is derived according to the generation method by using bevel gear cutter. The three-dimensional model for noncircular bevel gear is developed to verify the correctness of the design method.

The Simulation of Stack-Manipulator to Aluminum-Ingot Based on ADAMS

2014 ◽  
Vol 541-542 ◽  
pp. 704-707
Author(s):  
Tian Chang Yao ◽  
Hai Tao Wu ◽  
Hong Bin Liu ◽  
Da Wei Xu ◽  
Jia Cheng Cai
Keyword(s):  
Product Development ◽  
Simulation Model ◽  
Contact Force ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Dynamic Simulations ◽  
Kinematic Data ◽  
Kinematics Simulation ◽  
Aluminum Ingot

The authors build the three-dimensional model of stack-manipulator to aluminum-ingot in SoildWorks,and then import the model into Adams to create a simulation model via the interface between them.Adams runs dynamic and kinematics simulation of the model to measure some kinematic data of manipulator and the contact force of gear part.The dynamic simulations have forecasted the performance of products based on the model well and show the importance of Adams in product development.

Kinematics Simulation on the Centre of Sliding Universal Joints

2012 ◽  
Vol 150 ◽  
pp. 201-204
Author(s):  
De Gong Chang ◽  
C.C. Wang ◽  
B. Zuo
Keyword(s):  
Three Dimensional ◽  
Displacement Velocity ◽  
Dimensional Model ◽  
Universal Joint ◽  
Three Dimensional Model ◽  
Kinematic Simulation ◽  
Kinematics Simulation ◽  
Before And After ◽  
Universal Joints

This paper based on the improved twin tripod sliding universal joint and let it has the determined movement output. And create the three-dimensional model of twin tripod sliding universal joint before and after improved in software pro/e, and then put it into the simulation module, carry out the kinematic simulation of the tripod center on coupling. Obtained the curves of displacement, velocity and acceleration for two kinds of tripod centers.

Design Method for a Pair of Oval Bevel Gears

2011 ◽  
Vol 299-300 ◽  
pp. 887-890 ◽  
Author(s):  
Kan Shi ◽  
Ji Qiang Xia ◽  
Chun Jie Wang
Keyword(s):  
Design Method ◽  
Three Dimensional ◽  
Bevel Gear ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Bevel Gears ◽  
Planar Curve ◽  
Variable Transmission ◽  
Polar Coordinate ◽  
Pitch Curve

Oval bevel gear is a kind of noncircular bevel gear which can achieve variable transmission between intersecting axes. We design the pitch curve by spherics cosine theorem in spatial polar coordinate because the pitch curve of oval bevel gear is not the planar curve. The bevel gear cutter is introduced, and we get the Three-dimensional model of oval bevel gear through extended development of UG. This method can make the calculation accurately, easily and get a wide variation of transmission ratio.

Structure Design and Analysis of Kinematics of a 6-DOF Upper-Limbed Rehabilitation Robot

2013 ◽  
Vol 433-435 ◽  
pp. 125-129
Author(s):  
Dian Feng Cao ◽  
Qi Zhi Yang ◽  
Jun Peng Song ◽  
Jin Hai Zhao
Keyword(s):  
Three Dimensional ◽  
Transformation Method ◽  
Structure Design ◽  
Rehabilitation Robot ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Theoretical Derivation ◽  
Kinematics Simulation ◽  
Movement Characteristics ◽  
Inverse Solutions

In order to solve the problems that the functions of exiting upper-limbed rehabilitation robot are single and the structure is complicated, a 6-DOF exoskeleton upper-limbed rehabilitation robot is put forward. The kinematics model of the rehabilitation robot is established and kinematics positive and inverse solutions are solved using D-H transformation method. Three dimensional model of the rehabilitation robot is created by Pro/E and imported into ADAMS/view for the kinematics simulation by Mechanism/Pro. The gotten simulation results of the simulation verify the correctness of theoretical derivation and prove the smooth movement Characteristics of the scheme.

Obstacle Performance of Track Robot with Passive Rocker Based on Recurdyn

2013 ◽  
Vol 397-400 ◽  
pp. 1580-1588
Author(s):  
Man Lu Liu ◽  
Jing Zhang ◽  
Kuan Li
Keyword(s):  
Three Dimensional ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Prototype Model ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Kinematics Simulation ◽  
Body Dynamics ◽  
Set Up ◽  
Multi Body

To solve the instability of track robot in the process of climbing obstacles, a track robot with passive rocker was designed and a three-dimensional model of track robot was developed by Unigraphics NX in this paper. Furthermore, the kinematic analysis was made for obstacle performance of the track robot. The virtual prototype model of the track robot with passive rocker was set up by using the tracked vehicle subsystem of multi-body dynamics simulation software RecurDyn and kinematics simulation for this robot was made. The simulation results verify the feasibility of the machine and provide some theoretical guidance for developing the obstacle performance of track robot.

A Three-Dimensional Hydrodynamic Lubrication Model for Chemical-Mechanical Polishing Considering Pad Roughness

2010 ◽  
Vol 44-47 ◽  
pp. 1213-1217
Author(s):  
Fei Yan Lou
Keyword(s):  
Experimental Data ◽  
Film Thickness ◽  
Tilt Angle ◽  
Chemical Mechanical Polishing ◽  
Applied Load ◽  
Rotation Speed ◽  
Hydrodynamic Lubrication ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model

A three-dimensional hydrodynamic lubrication model based on lubrication theory is developed which accounts for pad roughness and slurry flow. The distribution of the slurry film thickness and pressure between the pad and the wafer are predicted using the model. The effects of the pad roughness, the polishing applied load and rotation speed on slurry film thickness and tilt angle are discussed. At last, a CMP experiment is carried out. It is found that the results are proved the three-dimensional model considering pad roughness agrees well with our experimental data. The results improve the previous models so that the CMP process can be better simulated using the model. Furthermore, they are useful in the processing of CMP and the design of the pad roughness.

Sign in / Sign up

Export Citation Format

Share Document