Motion Simulation of a Deployable Concentrator

2013 ◽  
Vol 740 ◽  
pp. 399-402
Author(s):  
Lei Lei Wang ◽  
Jiang Ling Xia
Keyword(s):  
Parametric Design ◽  
Solar Concentrator ◽  
Motion Simulation ◽  
Motion Process ◽  
Folding State

To overcome the insufficient focusing efficiency of inflatable membrane solar concentrator after deployment, parametric design of a plurality of small size pre-forming reflection mirror was carried on by Pro/E software, and assembled into a mechanical concentrator structure. The expected motion process form folding state to working state was simulated. Unfolding trajectory curves and location curves are obtained. This will provide reference to deployable concentrator design and experiment.

Configuration Design and Simulation of Exoskeleton for Upper Limb Rehabilitation Train

2014 ◽  
Vol 701-702 ◽  
pp. 654-658 ◽  
Author(s):  
Yuan Zhang ◽  
Qiang Liu ◽  
Ji Liang Jiang ◽  
Li Yuan Zhang ◽  
Rui Rui Shen
Keyword(s):  
Upper Limb ◽  
Simulation Analysis ◽  
Motion Simulation ◽  
Upper Limb Rehabilitation ◽  
Motion Data ◽  
Upper Limb Exoskeleton ◽  
Movement Data ◽  
Kinematics Simulation ◽  
Motion Process ◽  
Limb Rehabilitation

A new upper limb exoskeleton mechanical structure for rehabilitation train and electric putters were used to drive the upper limb exoskeleton and kinematics simulation was carried. According to the characteristics of upper limb exoskeleton, program control and master - slave control two different ways were presented. Motion simulation analysis had been done by Pro/E Mechanism, the motion data of electric putter and major joints had been extracted. Based on the analysis of the movement data it can effectively guide the electric putter control and analysis upper limb exoskeleton motion process.

scholarly journals A design of stretcher with auxiliary functions of lateral positioning and transferring for immobilized patients

2021 ◽  
Vol 336 ◽  
pp. 02014
Author(s):  
Ying Xiong ◽  
Xuehua Tang ◽  
Congcong Shi ◽  
Yang Yang
Keyword(s):  
Inverse Kinematics ◽  
Forward Kinematics ◽  
Motion Simulation ◽  
Practical Application ◽  
Auxiliary Functions ◽  
Rigid Rods ◽  
Hospital Bed ◽  
Motion Process ◽  
Lateral Positioning ◽  
Position State

For now, many hospitals that require nurses to move patients by hand from stretchers to a hospital bed, so a design of stretcher with auxiliary functions of lateral positioning and transferring for immobilized patients, which is a mechanical mechanism consisted of rigid rods, joints and sliders, was designed to help the nurses to move patients between beds and reduce their workload. Driven by motors, the rigid rods can be rotated, stretched or shortened so that the entire stretcher bed board can archive to a proper posture and position. In this paper, the following objectives will be achieved: (i) Create a schematic of the mechanism and describe the principles and functions (ii) the calculation of inverse kinematics, forward kinematics, dynamics (including energy), and PD control in the mechanism (iii) The motion process of simulating the mechanism using MATLAB (iv) Using MATLAB to create the plots of angle, torque, and position state (v) Using SolidWorks to construct the prototype and to implement the motion simulation of the mechanism (vi) Describe the practical application and future Extensions of this mechanism.

Elliptical Gears Parametric Design and Motion Simulation

2010 ◽  
Vol 139-141 ◽  
pp. 1206-1210 ◽  
Author(s):  
Chi Bing Hu ◽  
Fang Yong Tian ◽  
Yan Cang Jiang
Keyword(s):  
Design Theory ◽  
Parametric Design ◽  
Parametric Modeling ◽  
Motion Simulation ◽  
Improve Design ◽  
Operation Process ◽  
Development Cycle ◽  
Complex Design ◽  
Quality Of Products

Based on the design theory of non-circular gears, using Visual Basic 6.0 Programming language secondary developed SolidWorks software, a system of elliptical gears parametric design and motion simulation was developed. 3D parametric modeling and motion simulation of elliptical gears can be achieved by this system. The development process of system is introduced in detail, and an example which designed a transmission with two identical three rank elliptical gears was given to illustrate the system operation process in detail. Using elliptical gears pair ratio cyclical curves acquired, compared with theoretical transmission ratio can verify design whether meet the requirements. Complex design and calculation and difficult 3D modeling problems of elliptical gears are solved, and this system can also improve design precision, shorten the development cycle, and guarantee the quality of products.

Motion Simulation of Cluster Warhead Based on MATLAB

2014 ◽  
Vol 1051 ◽  
pp. 951-955
Author(s):  
Gui Yun Hang ◽  
Wen Li Yu ◽  
Tao Wang ◽  
Jin Tao Wang ◽  
Zhen Li
Keyword(s):  
Motion Simulation ◽  
Motion Process ◽  
Dispersion Velocity ◽  
Motion Parameters ◽  
Operational Scheme

External trajectory equations of a certain cluster warhead were established according to the analysis of force during the motion process. The distribution on ground and some related motion parameters were got by MATLAB to solve the external trajectory equations. The influence of some factors on the distribution and terminal motion parameters were researched. The results show that the dispersion height and dispersion velocity are the most important factors. This paper can provide some reference for the research on the distribution of cluster warhead and determining operational scheme.

Parametric Design and Motion Simulation of Disc Cam Profile Curve Based on the UG NX

2013 ◽  
Vol 753-755 ◽  
pp. 1423-1426
Author(s):  
Li Wang
Keyword(s):  
Motion Analysis ◽  
Parametric Design ◽  
Design Method ◽  
Velocity Curve ◽  
Displacement Curve ◽  
Profile Curve ◽  
Motion Simulation ◽  
Theoretical Design ◽  
Cam Profile ◽  
Continuity Analysis

This paper presents a parametric design method of the cam profile curve with UG NX, created the cam curves with law of the curve command, conducted curve continuity analysis with Curve Continuity Analysis command, and the results show that all adjacent curves are tangent continuous. This ensures the design accuracy. The velocity curve and the displacement curve were got through the cam motion simulation, and the motion analysis is consistent with the results of theoretical design. Expressions were changed, and the motion analysis show that the parametric design of the cam contour is reasonable.

scholarly journals Optimal Design of a Secondary Optical Element for a Noncoplanar Two-Reflector Solar Concentrator

2015 ◽  
Vol 2015 ◽  
pp. 1-8
Author(s):  
Yi-Cheng Chen ◽  
Chia-Chi You
Keyword(s):  
Design Process ◽  
Parametric Design ◽  
Optical Element ◽  
Solar Concentrator ◽  
Optical Performance ◽  
Parabolic Mirror ◽  
Acceptance Angle ◽  
Optical Efficiency ◽  
Two Phases ◽  
Ray Tracing Simulation

This paper presents the results of a parametric design process used to achieve an optimal secondary optical element (SOE) in a noncoplanar solar concentrator composed of two reflectors. The noncoplanar solar concentrator comprises a primary parabolic mirror (M1) and a secondary hyperbolic mirror (M2). The optical performance (i.e., acceptance angle, optical efficiency, and irradiance distribution) of concentrators with various SOEs was compared using ray-tracing simulation. The parametric design process for the SOE was divided into two phases, and an optimal SOE was obtained. The sensitivity to assembly errors of the solar concentrator when using the optimal SOE was studied and the findings are discussed.

Establishment and Application of the Platform for Reverse Solution and Parametric Design Platform of the Conjugate Cam Beating-up Mechanism

2011 ◽  
Vol 332-334 ◽  
pp. 303-308
Author(s):  
Jian Neng Chen ◽  
Ying Wang ◽  
Xiong Zhao ◽  
Wan Huan Lin
Keyword(s):  
Parametric Design ◽  
Structural Parameters ◽  
Three Dimensional ◽  
Secondary Development ◽  
Motion Simulation ◽  
Technological Parameters ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Processing Data ◽  
The Mathematical Model

In order to realize the parametric design of the conjugate cam beating-up mechanism, on the basis of the technological parameters of beating-up mechanism, ideal kinematical curves of the beating-up mechanism are builded, and the mathematical model of reverse solution for this mechanism is established. The parameters of this beating-up mechanism are obtained by reverse solution according to the kinematic requirements and the constructed ideal kinematic curves. The secondary development of UG is conducted based on VB.NET, the parametric design platform which is integrated with the functions of parametric reverse solution, motion simulation, three-dimensional modeling and virtual assembly is built. After entering the technological parameters of beating-up and essential structural parameters by users, the three-dimensional drawing of main parts such as the conjugate cam and shaft, can be obtained by this platform, also the processing data of the cam can be calculated. This platform provides a rapid approach for the parametric design of beating-up mechanism.

Study on High-Order Elliptical Gear Parametric Design, Automatic Modeling and Motion Simulation

2012 ◽  
Vol 271-272 ◽  
pp. 1147-1154
Author(s):  
Z.H. Xie ◽  
D.M. Qiu
Keyword(s):  
Design Principle ◽  
Parametric Design ◽  
High Order ◽  
Motion Simulation ◽  
Automatic Modeling ◽  
Gear Design ◽  
Solidworks Api ◽  
Envelope Processing ◽  
Parametrical Design ◽  
Pitch Curve

In this paper, the high-order elliptical gear design principle and methods were studied based on Solidworks API to accomplish high-order elliptical gear parametrical design, machining simulation and automatic modeling. Elliptical gear pair simulation was carried out for verification. The high-order elliptical gear modeling method proposed was to use gear hob type of envelope processing method with the advantages of being able to process concaved pitch curve of high-order elliptical gear. The idea of this design process can also be extended to other types of non-circular gear design and modeling.

The Parametric Design and Motion Analysis of Disc Cam Mechanism with Straight Motion and Deviation Roller Follower

2010 ◽  
Vol 26-28 ◽  
pp. 360-364
Author(s):  
Jian Ping Sun ◽  
Yi Ping Luo
Keyword(s):  
Parametric Design ◽  
Secondary Development ◽  
Design System ◽  
Graphic Method ◽  
Motion Simulation ◽  
Design Quality ◽  
Cam Mechanism ◽  
Parameterized Design ◽  
Reverse Turn ◽  
Pitch Curve

In view of those situations which follower of cam mechanism have complicated motion law in rise travel and return travel, basing on secondary development and applying synthetically of Pro/E, following the reverse turn principle of the tradition graphic method, the wholly parameterized design system was developed. Furthermore, virtual assembly and motion simulation had been realized. According to the parameter imported by the consumer, the system can generate automatically cam pitch curve and cam contour of 16 kinds of combination follower motion law. It can raise cam mechanism product design quality and efficiency.

Application of Virtual Assembly Technology in the Design of Shaper

2012 ◽  
Vol 201-202 ◽  
pp. 275-278
Author(s):  
Feng Gu ◽  
Xiao Hu Zheng
Keyword(s):  
Gap Analysis ◽  
Parametric Design ◽  
Design Method ◽  
Virtual Assembly ◽  
Motion Simulation ◽  
Design Requirement ◽  
Development Cycle ◽  
Assembly Technology ◽  
Relationship Of ◽  
Design Cost

Using functions of the parametric design and assembling in Pro/E, the parametric model for parts of shaping machine was established and the virtual assembly of shaping machine was achieved according to the parts of the assembly relationship in Pro/E assembly environment. Using functions of gap analysis and interference check in Pro/E,it can check interference to find and amend parts structure of shaping machine and can analyse gap to find the assembly relationship of shaping machine. Through the motion simulation, it can simulate movement of various parts of shaping machine in virtual environment. Using the method of virtual assembly ,it can met the design requirement of shaping machine, reduce the design cost of shaping machine, shorten the product development cycle, improve the design efficiency. It has offered a kind of new design method and implementation way for research of the model.

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