On the Kinematic of a Coil Winder of RCRC Type

2014 ◽  
Vol 1030-1032 ◽  
pp. 1219-1223
Author(s):  
Wen Hsiang Hsieh ◽  
Chia Heng Tsai
Keyword(s):  
Topological Structure ◽  
Kinematic Chain ◽  
Kinematic Simulation ◽  
Kinematic Study ◽  
Adams Software

The purpose of this study aims at performing the kinematic study of the coil winder with a RCRC mechanism by investigating the geometry and conducting kinematic simulation. First, the motion principle of the shuttle is addressed. Then, the topological structure of the RCRC mechanism is examined, and its kinematic chain and kinematic sketch are drawn. Finally, a design example of the RCRC mechanism is given for illustration, and its feasibility is verified by performing kinematic simulation using ADAMS software. Finally, the simulated result shows that the shuttle can produce the required winding motion.

A Kinematic Study on a Novel Press System

2007 ◽  
Vol 364-366 ◽  
pp. 595-600 ◽  
Author(s):  
Wen Hsiang Hsieh
Keyword(s):  
Energy Consumption ◽  
Lower Energy ◽  
Lower Cost ◽  
High Reliability ◽  
Solid Model ◽  
Kinematic Simulation ◽  
Kinematic Study ◽  
Adams Software ◽  
Mechanical Press ◽  
Crank Mechanism

The work aims to present a novel press system, and to investigate its feasibility by performing a kinematic study. Firstly, the new design is proposed, which is composed by a motor, a constant speed coupling, a gear reducer, a generalized Oldham coupling, and a slider-crank mechanism. Secondly, its structural sketch is drawn, and its kinematic dimensions are obtained by studying its motion geometry. Then, a design example is given for illustration. Moreover, the solid model of the design is established, and then the validity of the design is verified by kinematic simulation using ADAMS software. Finally, the effects of different link ratios on the output motion are examined by conducting a number of simulations. The results of simulations show that the new design can produce more flexible output motion than a mechanical press. In addition, it has the advantages of lower cost, high reliability, and lower energy consumption, compared to a servo press.

Kinematic Study on a New Coil Winder of RSPC Type

2010 ◽  
Vol 156-157 ◽  
pp. 1488-1491 ◽  
Author(s):  
Wen Hsiang Hsieh ◽  
Chia Heng Tsai
Keyword(s):  
Design Constraints ◽  
Kinematic Simulation ◽  
Kinematic Chains ◽  
Kinematic Study ◽  
Adams Software ◽  
Design Requirements ◽  
Number Synthesis

The objective of this paper aims at investigating the feasibility of new coil winders with a spatial RSPC mechanism by conducting kinematic simulation. First, the design requirements and design constraints are specified based on the kinematics characteristic of coil winders. Then, the (4, 4) kinematic chains are obtained by number synthesis, and the atlas of feasible chains is generated. After that, the atlas of specialized feasible chains is found. Finally, new designs are obtained through the particularization process. In addition, an illustrated example of the RSPC mechanismselected from the new designs is given, and its feasibility is verified by performing kinematic simulation using ADAMS software. The result shows that it can meet the motion requirement of coil winders.

Design of a Human Knee Reeducation Mechanism

2019 ◽  
Vol 11 (1) ◽  
pp. 42-53
Author(s):  
Allaoua Brahmia ◽  
Ridha Kelaiaia
Keyword(s):  
Lower Limb ◽  
Mechanical Design ◽  
Kinematic Chain ◽  
Lower Limbs ◽  
Kinematic Structure ◽  
Robotic Device ◽  
Human Knee ◽  
Kinematic Study ◽  
Rehabilitation Exercise ◽  
New Machine

Abstract To establish an exercise in open muscular chain rehabilitation (OMC), it is necessary to choose the type of kinematic chain of the mechanical / biomechanical system that constitutes the lower limbs in interaction with the robotic device. Indeed, it’s accepted in biomechanics that a rehabilitation exercise in OMC of the lower limb is performed with a fixed hip and a free foot. Based on these findings, a kinematic structure of a new machine, named Reeduc-Knee, is proposed, and a mechanical design is carried out. The contribution of this work is not limited to the mechanical design of the Reeduc-Knee system. Indeed, to define the minimum parameterizing defining the configuration of the device relative to an absolute reference, a geometric and kinematic study is presented.

A Study on a Novel Vibrating Conveyor

2009 ◽  
Vol 419-420 ◽  
pp. 45-48 ◽  
Author(s):  
Wen Hsiang Hsieh ◽  
Chia Heng Tsai
Keyword(s):  
Solid Model ◽  
Kinematic Simulation ◽  
Adams Software ◽  
Simulation Results ◽  
Novel Concept

The purpose of this study is to present a novel concept for inline vibrating conveyors, and verify its feasibility by kinematic simulation. First, new conveyor is presented, and its merits are discussed. Then, its kinematically equivalent linkage is described. Moreover, the kinematic dimensions are investigated from its geometry. Finally, the solid model for the proposed design is established, then kinematic simulation is performed by ADAMS software. The simulation results indicate that the proposed new design can effectively advance the workpiece.

Modeling and Simulation of a Six-Leg-Wheel Hybrid Mobile Robot Based on ADAMS

2010 ◽  
Vol 26-28 ◽  
pp. 194-197
Author(s):  
Yan Jie Li ◽  
Zhen Wei Wu
Keyword(s):  
Control System ◽  
Mobile Robot ◽  
Modeling And Simulation ◽  
Dynamic Simulation ◽  
Dynamic Modeling ◽  
Contact Force ◽  
Robot Control ◽  
Kinematic Simulation ◽  
Adams Software ◽  
Driving Torque

The dynamic modeling of a six-leg-wheel hybrid mobile robot was built using ADAMS software in this paper. Using the ADAMS model, the kinematic simulation, including the displacement, velocity and acceleration of each part of the robot, can be carried out and the dynamic simulation, including driving torque of joints, contact force and torque between the wheels with ground and the ability of obstacle negotiation, can also be achieved. The simulation examples were presented. The simulation analyses provide the theory basis for the design of the robot control system based on dynamics.

Research on Scheme Design of Four-Axis Machining Centers Based on Topological Structure and Tool Changing Motion Characteristics

2010 ◽  
Vol 455 ◽  
pp. 242-250
Author(s):  
J.H. Liu ◽  
Bo Zhao ◽  
Hong Sen Yan
Keyword(s):  
Machine Tool ◽  
Design Process ◽  
Topological Structure ◽  
Kinematic Chain ◽  
Layout Design ◽  
Tree Graph ◽  
Scheme Design ◽  
Tool Magazine ◽  
Change Mechanisms ◽  
Motion Characteristics

The scheme design process for four–axis machining centers is proposed based on analysis of main kinematic chain, topological and tool changing motion characteristics of machine tool in this paper. All possible kinematic schemes of four-axis machining centers with tool change mechanisms up to eight links are generated. And the number of that is 74 with mechanisms of tree graph considered only. Further more, several schemes can be derived from each one of schemes with characteristics of tool change directions and types of tool magazine considered. The results of this work provide references for new multi-axis machining center’s development and layout design.

Innovative Design Based on Prototypes of the Main Mechanism of Table Lamp

2012 ◽  
Vol 198-199 ◽  
pp. 189-192
Author(s):  
Wan Chun Zhou ◽  
Jian Jun Lu
Keyword(s):  
Topological Structure ◽  
Kinematic Chain ◽  
Main Mechanism ◽  
Schematic Diagram ◽  
Design Constraints ◽  
Innovative Design ◽  
Kinematic Chains ◽  
Structure Characteristics ◽  
Practical Design ◽  
Number Synthesis

On the basis of analyzing the topological structure of an original mechanism, it leads to the generalized kinematic chain meeting the same topological structure characteristics of the original mechanism in accordance with the generalized principle of mechanism, number synthesis of kinematic chain and compound hings. Allocation of ground links and performing links in the kinematic chain can get all feasible specialized kinematic chains while considering practical design constraints. In the final step, concrete schematic diagram of mechanism being restored from specialized kinematic chains leads to a series of new mechanism different from the original one. Designers ascertain appropriate new mechanism after selection and analysis.

scholarly journals Structural-topological synthesis of space mechanisms with rods and wheels

2019 ◽  
Vol 10 (5) ◽  
pp. 1446
Author(s):  
Relly Victoria Virgil Petrescu ◽  
Florian Ion Tiberiu Petrescu
Keyword(s):  
Topological Structure ◽  
Kinematic Chain ◽  
Machine Building ◽  
Building Industry ◽  
High Quality ◽  
Closed Chain ◽  
Gear Wheels ◽  
Space Mechanisms ◽  
Toothed Gears

Today, robots are increasingly present in the machine building industry, sometimes even in some sections to replace workers altogether, due to the high quality of their work, repetitive, without stopping or pausing, without any manufacturing and assembly scuffs. In this paper, one presents the mechanisms with bars and gears, which are planetary mechanisms for robot automation and mechatronics, structurally-topological. The gears and bars consist of at least one movable articulated bar and one of the cylindrical, tapered or hipoidal gears. Only gears with circular or straight toothed gears, in which the relative position of the rotation or translation axes does not change, shall be considered. The topological structure of the gears and gears is characterized by a kinematic chain with articulated bars and at least one kinematic chain with gears. The kinematic chain may be chain open (with a fixed rotation joint) or closed chain (with at least two fixed joints). The kinematic chain with gears is attached to the kinematic chain with bars so that at least two gear wheels have centers in the bars of the bars and some wheels may be integral with the bars. In practice, some of these gears with gears and gears are known as planetary gears with cylindrical, conical or hipoidal gears.

A STUDY ON A NOVEL QUICK RETURN MECHANISM

2009 ◽  
Vol 33 (3) ◽  
pp. 487-500 ◽  
Author(s):  
Wen-Hsiang Hsieh ◽  
Chia-Heng Tsai
Keyword(s):  
Experimental Setup ◽  
Reasonable Accuracy ◽  
Kinematic Simulation ◽  
Time Ratio ◽  
Adams Software ◽  
Novel Design ◽  
Crank Mechanism ◽  
Equivalent Mechanism

This work aims to propose a novel design for quick return mechanisms, and the new mechanism is composed by a generalized Oldham coupling and a slider-crank mechanism. First, the kinematic dimensions that affect the time ratio are found by investigating the geometry of the proposed design. By transforming into its kinematically equivalent mechanism, and then the design equations of time ratio are derived. Furthermore, a design example is given for illustration. Moreover, the design is validated by kinematic simulation using ADAMS software. Finally, a prototype and an experimental setup are established, and the experiment is conducted. The results show that proposed new mechanism is feasible and with reasonable accuracy. In addition, it is more compact and easier to be balanced dynamically than a conventional quick return linkage.

STUDY ON THE MODELING, ALGORITHM AND APPLICATION OF PRODUCT KINEMATIC SIMULATION VIRTUAL-ENVIRONMENT-ORIENTED

2010 ◽  
Vol 09 (02) ◽  
pp. 157-160
Author(s):  
ZHIHONG CHENG ◽  
BAOMING WANG ◽  
ZHENCAI ZHU ◽  
HAIFENG YAN ◽  
WENSHU CAI
Keyword(s):  
Virtual Environment ◽  
Kinematic Analysis ◽  
Topological Structure ◽  
Combustion Engine ◽  
Virtual Prototyping ◽  
Product Performance ◽  
Motion Model ◽  
Kinematic Simulation ◽  
Knowledge Expression ◽  
Kinematic Mapping

Kinematic simulation in virtual environment is the key technique of product performance evaluation. Based on graph theory, the paper gives the integrity knowledge expression of product motion model, including the topological structure, motion dimension and driver information. It builds a solver of kinematic analysis for planar linkage interactive-oriented, which based on auto-identifying of Assur groups and auto-generating of kinematic analysis routine by operating labeled adjacency matrix. A new method of kinematic simulation for virtual prototyping is put forward based on the kinematic mapping of pseudo-linkage. The achievements have been applied to the kinematic simulation of internal-combustion engine, punch and crusher.

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