Automation Bridge Design and Structural Optimization

2011 ◽  
Vol 63-64 ◽  
pp. 457-460 ◽  
Author(s):  
Xue Gui ◽  
Xiao Yan Zheng ◽  
Jian Wei Song ◽  
Xia Peng
Keyword(s):  
Structural Optimization ◽  
Structural Design ◽  
Design Automation ◽  
Structure Design ◽  
Automation System ◽  
Bridge Design ◽  
Design And Optimization ◽  
Overall Design ◽  
Beam Design ◽  
Design Software

This paper summarizes the structural optimization applications in civil engineering design and development of the situation based on the characteristics of the bridge structure design process is proposed for the bridge project to the genetic algorithm, neural network, expert system technology as the basis for combining automated design and optimization of structural design of the system; as basic idea, given the structure design of automation system design and optimization of the overall design framework, and prestressed beam design automation is simply an example of structural design and optimization of design automation. Finally, a brief summary of the development process of bridge design software, design automation and optimization that the inevitable trend of development.

Structural Design of the Robot Arm for Massage Based on the Chain Drive

2012 ◽  
Vol 605-607 ◽  
pp. 1547-1551
Author(s):  
Zhan Li Wang ◽  
Qian Liang ◽  
Bang Cheng Zhang
Keyword(s):  
Structural Design ◽  
Elbow Joint ◽  
Structure Design ◽  
Robot Arm ◽  
Chain Drive ◽  
Element Analysis ◽  
Overall Design ◽  
Transfer Mode ◽  
Design Requirements ◽  
Robot Technology

With the development of robot technology, massage robot has attracted fully attention, and the study about robot arm has been a growing interest in the area of massage robot. This article has put forward a new massage robot arm, which uses the chain as the main transfer mode by the requirements of the overall design massage of the robot arm. The design of big arm, shoulder joint, forearm, elbow joint and wrist are introduced. Based on the design requirements, we made some improvements with sprockets, ensuring transmission conditions and meeting the massage requirements. And finite element analysis for the designed arm, results show that the structure design can meet the requirements.

Iang Structural Design of Hydraulic Manipulator in Nuclear Radiation Environment

2013 ◽  
Vol 441 ◽  
pp. 631-634
Author(s):  
Yong Xia Liu ◽  
Shu Liang Zou ◽  
Zhi Feng He ◽  
Liang Yan
Keyword(s):  
Structural Analysis ◽  
Structural Optimization ◽  
Modeling And Simulation ◽  
Structural Design ◽  
Structure Design ◽  
Nuclear Radiation ◽  
Radiation Environment ◽  
Motion Simulation ◽  
Hydraulic Manipulators ◽  
Hydraulic Manipulator

By using modeling and simulation technology, motion simulation and structural analysis were carried out on hydraulic manipulators structure working in the radiation environment. The results of motion simulation can test the manipulators kinematics characteristic, and provide a basis for structural optimization design.Structural analysis could be used to validate manipulators s tructure is able to withstand the movement of stress, strain or not. Manipulators structure design can be properly improved by use of the structural analysis.

Structure Design and Analysis of Moving Character for Detect Robot for Underground Coal Mine

2014 ◽  
Vol 526 ◽  
pp. 205-210
Author(s):  
Tong Xue ◽  
Rong Liu ◽  
Shi Min Zhai
Keyword(s):  
Mobile Robot ◽  
Coal Mine ◽  
Structural Design ◽  
Necessary Conditions ◽  
Structure Design ◽  
Underground Coal Mine ◽  
Obstacle Crossing ◽  
Design And Optimization ◽  
Tracked Mobile Robot

Aiming at the environment of the underground coal mine combined with the advantage of the articulated-tracked mobile robot at present, a flameproof mobile robot which can detect and rescue for underground coal mine is designed. By analyzed of obstacle crossing mechanism for the robot, necessary conditions for robot obstacle crossing successfully were proposed, and the gait of robot obstacle crossing was programmed. The conclusion can be provided for the same type robots structural design and optimization.

Kinematics and Dynamics Simulation Research for Roller Coaster Multi-Body System

2011 ◽  
Vol 421 ◽  
pp. 276-280 ◽  
Author(s):  
Ge Ning Xu ◽  
Hu Jun Xin ◽  
Feng Yi Lu ◽  
Ming Liang Yang
Keyword(s):  
Structural Design ◽  
3D Model ◽  
Structure Design ◽  
Dynamics Simulation ◽  
Body System ◽  
Load Spectrum ◽  
Roller Coaster ◽  
Simulation Research ◽  
Calculation Results ◽  
Multi Body

To assess the roller coaster multi-body system security, it is need to extract the running process of kinematics, dynamics, load spectrum and other features, as basis dates of the roller coaster structural design. Based on Solidworks/motion software and in the 3D model, the calculation formula of the carrying car velocity and acceleration is derived, and the five risk points of the roller coaster track section are found by simulation in the running, and the simulation results of roller coaster axle mass center velocity are compared with theoretical calculation results, which error is less than 4.1%, indicating that the calculation and simulation have a good fit and providing the evidence for the roller coaster structure design analysis.

A methodology for the evaluation of structural design software

1993 ◽  
Vol 49 (5) ◽  
pp. 877-883 ◽  
Author(s):  
H. Adeli ◽  
J. Wilcoski
Keyword(s):  
Structural Design ◽  
Design Software

Experimental Study of Urea Depositions in Urea-SCR System

2014 ◽  
Vol 937 ◽  
pp. 74-79 ◽  
Author(s):  
Shu Zhan Bai ◽  
Shuai Guo Lang ◽  
Ke Ping Yuan ◽  
Yang Liu ◽  
Guo Xiang Li
Keyword(s):  
Control Strategy ◽  
Structural Design ◽  
Cyanuric Acid ◽  
Exhaust System ◽  
Structure Design ◽  
Exhaust Pipe ◽  
Front End ◽  
Urea Crystallization ◽  
Exhaust Stream ◽  
Scr System

Avoiding the urea deposition in the exhaust stream is one of the basic requirements for SCR system normal application. Unreasonable structure design, machining and installation position all could lead to urea crystallization on the wall of exhaust pipe and the front end surface of the catalyst, in addition, unreasonable control strategy also could deteriorate this phenomenon. The components of the urea depositions are the urea and cyanuric acid analyzed by thermogravimetry - FTIR technology. The integrated injector mounting is designed to alleviate the urea crystallization based on analysis results. The engine test and the vehicle road test are all shown that the optimal structural design and calibration strategies could avoid crystallization and sedimentation effectively in the exhaust system.

Automation of seismic design of high-rise structure with braced steel frame

2021 ◽  
Author(s):  
Xin Zhao ◽  
Gang Wang ◽  
Jinlun Cai ◽  
Junchen Guo
Keyword(s):  
Seismic Performance ◽  
Seismic Design ◽  
Structural Design ◽  
Structure Design ◽  
Steel Frame ◽  
Design Methods ◽  
Automatic Design ◽  
Component Level ◽  
Design Algorithm ◽  
High Rise

<p>With the continuous development and progress of society, the structure of high-rise buildings has been paid more and more attention by the engineering community. However, the existing high- rise structure design methods often have a lot of redundancy and have a lot of room for optimization. Most of the existing seismic design methods of high-rise structures are based on engineering experience and manual iterative methods, so that the efficiency of design can not meet the needs of the society. if the method of design automation is adopted, the workload of designers can be greatly reduced and the efficiency of structural design can be improved. Based on the digital modeling theory, this paper proposes a MAD automatic design algorithm, in which the designer provides the initial design of the structure, and the algorithm carries out the modeling, analysis, optimization and design of each stage of the structure, and finally obtains the optimal structure. The structural design module of this algorithm starts from the component level, when the component constraint design meets the limit requirements of the specification, it enters and completes the component constraint design and the global constraint design of the structure in turn. In this paper, taking a ten-story braced steel frame high-rise structure as an example, the optimal design is carried out, and its seismic performance is analyzed. the results show that the MAD automatic design algorithm can distribute the materials to each part reasonably, which can significantly improve the seismic performance of the structure and realize the effective seismic design.</p>

Analysis of Thermal Properties of Power Multifinger HEMT Devices

2018 ◽  
Author(s):  
Aleš Chvála ◽  
Robert Szobolovszký ◽  
Jaroslav Kováč ◽  
Martin Florovič ◽  
Juraj Marek ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Thermal Management ◽  
High Electron Mobility Transistor ◽  
Structure Design ◽  
High Electron ◽  
Design And Optimization ◽  
Chip Temperature ◽  
Materials Used ◽  
On Chip ◽  
Measurement Approach

In this paper, several methods suitable for real time on-chip temperature measurements of power AlGaN/GaN based high-electron mobility transistor (HEMT) grown on SiC substrate are presented. The measurement of temperature distribution on HEMT surface using Raman spectroscopy is presented. We have deployed a temperature measurement approach utilizing electrical I-V characteristics of the neighboring Schottky diode under different dissipated power of the transistor heat source. These methods are verified by measurements with micro thermistors. The results show that these methods have a potential for HEMT analysis in thermal management. The features and limitations of the proposed methods are discussed. The thermal parameters of materials used in the device are extracted from temperature distribution in the structure with the support of 3-D device thermal simulation. The thermal analysis of the multifinger power HEMT is performed. The effects of the structure design and fabrication processes from semiconductor layers, metallization, and packaging up to cooling solutions are investigated. The analysis of thermal behavior can help during design and optimization of power HEMT.

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