Research on Performance of Coal Mine Refuge Chamber Reinforcing Ribs

2013 ◽  
Vol 631-632 ◽  
pp. 967-970
Author(s):  
Bing Xian Ou ◽  
Jun Xia Yan
Keyword(s):  
Coal Mine ◽  
Performance Optimization ◽  
Optimization Method ◽  
Element Analysis ◽  
Underground Coal Mine ◽  
Performance Requirements ◽  
Reinforcing Ribs ◽  
And Performance ◽  
Performance Research ◽  
Ansys Workbench

The coal mine refuge chamber is the necessary production of emergency system used in the underground coal mine. It can be installed conveniently and moved with the workplace. So it is more widely applied. The composition and basic performance requirements of coal mine refuge chamber were introduced in this paper. The performance of reinforcing ribs was done by finite element analysis software ANSYS Workbench and the performance optimization method of square tube reinforcing ribs thin plate was proposed. It can provide some reference for the design and performance research of refuge chamber bulkhead.

scholarly journals In-Orbit Operational Parameter Calculation and Performance Optimization in KOMPSAT-6 Synthetic Aperture Radar

2021 ◽  
Vol 13 (12) ◽  
pp. 2342
Author(s):  
Jin-Bong Sung ◽  
Sung-Yong Hong
Keyword(s):  
Synthetic Aperture Radar ◽  
Performance Optimization ◽  
Pulse Repetition Frequency ◽  
Optimization Method ◽  
Synthetic Aperture ◽  
Operational Parameters ◽  
Operational Parameter ◽  
Design Methodologies ◽  
And Performance ◽  
Aperture Radar

A new method to design in-orbit synthetic aperture radar operational parameters has been implemented for the Korean Multi-purpose Satellite 6 mission. The implemented method optimizes the pulse repetition frequency when a satellite altitude changes from its nominal one, so it has the advantage that the synthetic aperture radar performances can satisfy the requirements for the in-orbit operation. Other commanding parameters have been designed to conduct trade-off between those parameters. This paper presents the new optimization method to maintain the synthetic aperture radar performances even in the case of an altitude variation. Design methodologies to determine operational parameters, respectively, at nominal altitude and in orbit are presented. In addition, numerical simulation is presented to validate the proposed optimization and the design methodologies.

scholarly journals A Fast Optimization Method for Reliability and Performance of Cloud Services Composition Application

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Zhao Wu ◽  
Naixue Xiong ◽  
Yannong Huang ◽  
Qiong Gu ◽  
Chunyang Hu ◽  
...  
Keyword(s):  
Cloud Computing ◽  
State Space ◽  
Generating Function ◽  
Performance Optimization ◽  
Optimization Method ◽  
Cloud Services ◽  
Services Composition ◽  
Fast Optimization ◽  
And Performance ◽  
Universal Generating Function

At present the cloud computing is one of the newest trends of distributed computation, which is propelling another important revolution of software industry. The cloud services composition is one of the key techniques in software development. The optimization for reliability and performance of cloud services composition application, which is a typical stochastic optimization problem, is confronted with severe challenges due to its randomness and long transaction, as well as the characteristics of the cloud computing resources such as openness and dynamic. The traditional reliability and performance optimization techniques, for example, Markov model and state space analysis and so forth, have some defects such as being too time consuming and easy to cause state space explosion and unsatisfied the assumptions of component execution independence. To overcome these defects, we propose a fast optimization method for reliability and performance of cloud services composition application based on universal generating function and genetic algorithm in this paper. At first, a reliability and performance model for cloud service composition application based on the multiple state system theory is presented. Then the reliability and performance definition based on universal generating function is proposed. Based on this, a fast reliability and performance optimization algorithm is presented. In the end, the illustrative examples are given.

CAE in Automotive Engine Mount Development

2010 ◽  
Author(s):  
Min Lu
Keyword(s):  
Computer Aided Engineering ◽  
Element Analysis ◽  
Automotive Engine ◽  
Performance Requirements ◽  
Mass Moment ◽  
Computer Aided ◽  
Engine Mount ◽  
Roll Axis ◽  
Development Approach ◽  
And Performance

The desire for more quiet and comfortable cars from consumers requires better engineering in the process of engine mount development. The fact that no physical vehicle exists at the time when the project launches, the design guidance relying on computer-aided engineering is essential. This paper discusses an engine mount development approach relying on computer-aided engineering with the assumption that the initial powertrain data, which include the powertrain mass, mass center, mass moment of inertia and engine power, are available. The mount placement strategy is discussed after the torque roll axis is introduced. To achieve the decoupled vibration modes for the mounting system, the computer simulated powertrain rigid body modal analysis is employed. As a result, the mount linear portion of the load-deflection curve is determined while the nonlinear portion is chosen by static analysis, whose constraint is the maximum powertrain roll angle under the condition of the maximum torque input. Also, the reaction forces in the three orthogonal directions are able to be estimated under the various loading conditions which reflect the vehicle driving conditions. Finally, finite element analysis is employed in the designs of the metallic and rubber components to meet the durability and performance requirements.

Optimization of the Frame and Performance Analysis of Solar Modules Based on Ansys Workbench and Solidworks

2016 ◽  
Vol 693 ◽  
pp. 169-173
Author(s):  
Wei Hua Wei ◽  
Ya Nan Zhu ◽  
Tong Ming Xue ◽  
Si Yuan Xie ◽  
Cheng Rong Yuan ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Defect Detection ◽  
Three Dimensional ◽  
Analysis Software ◽  
Element Analysis ◽  
Load Tests ◽  
And Performance ◽  
Factory Laboratory ◽  
Ansys Workbench

Taking advantage of three-dimensional software Solidworks to model for solar modules and also using finite element analysis software Ansysworkbench to conduct the stress analysis and strength check of modules, to analyze the deformation of modules under certain loading conditions, to conduct load tests and defect detection (EL experiments) and to optimize encapsulation with aluminum frame combined with the factory laboratory. The results show that: the modules have no crack and other defects and their power attenuation does not exceed the specified value after the 2.0mm thickness aluminum frame was reduced to 1.7mm.

scholarly journals Solid Modeling and Finite Element Analysis of an Overhead Crane Bridge

10.14311/712 ◽  
2005 ◽  
Vol 45 (3) ◽  
Author(s):  
C. Alkin ◽  
C. E. Imrak ◽  
H. Kocabas
Keyword(s):  
Finite Element ◽  
Optimization Method ◽  
Overhead Crane ◽  
Element Analysis ◽  
Box Girder ◽  
Shell Elements ◽  
Shell Models ◽  
And Performance ◽  
Design Calculations

The design of an overhead crane bridge with a double box girder has been investigated and a case study of a crane with 35 ton capacity and 13 m span length has been conducted. In the initial phase of the case study, conventional design calculations proposed by F. E. M. Rules and DIN standards were performed to verify the stress and deflection levels. The crane design was modeled using both solids and surfaces. Finite element meshes with 4-node tetrahedral and 4-node quadrilateral shell elements were generated from the solid and shell models, respectively. After a comparison of the finite element analyses, the conventional calculations and performance of the existing crane, the analysis with quadratic shell elements was found to give the most realistic results. As a result of this study, a design optimization method for an overhead crane is proposed. 

Structure Analysis of Inner Cylinder Components of Drum Washing Machine Based on Ansys/Workbench

2013 ◽  
Vol 385-386 ◽  
pp. 137-140
Author(s):  
Wei Li Sun ◽  
Sen Zhang ◽  
Wei Wei Ge ◽  
Yuan Yuan Li
Keyword(s):  
Structure Analysis ◽  
Three Dimensional ◽  
Optimization Method ◽  
Washing Machine ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
New Thought ◽  
Working Performance ◽  
Intensity Characteristic ◽  
Ansys Workbench

The structure of inner cylinder component of drum washing machine has a critical impact on its working performance and service life, as a result, the structure analysis of the drum assembly (spider and main shaft) is chosen to be the research object in this paper. As the three-dimensional model is established by PRO/E, the structure intensity characteristic has been analyzed with the method of finite element analysis which is based on software Ansys/Workbench. According to the stress distribution characteristic, the maximum stress value that the spider has been bearing can be contrasted and analyzed with different load which can make sure the periodic properties of structure loads. The analysis and optimization method based on Ansys/Workbench provided a new thought which had the guiding significance for the development of new products of drum washing machine.

The Performance Research of Automotive Crankshaft Based on ANSYS Workbench Collaborative Platform

2012 ◽  
Vol 426 ◽  
pp. 177-181
Author(s):  
Qing Yu
Keyword(s):  
Automotive Industry ◽  
Stress And Strain ◽  
Connecting Rod ◽  
Element Analysis ◽  
Vehicle Performance ◽  
The Finite Element Analysis ◽  
Collaborative Platform ◽  
Distribution Of Stress ◽  
Performance Research ◽  
Ansys Workbench

Crankshaft is widely used in the automotive industry, its quality has a direct impact on engine and vehicle performance. This paper the finite element analysis of crankshaft is discussed by using four different loads based on ANSYS workbench collaborative platform, thus the distribution of stress and strain is obtained and the relationships between arc radius and crankshaft stress is studied by changing the value of arc knuckle radius between the connecting rod journal and the crank at the junction of the transition, lastly the intrinsic mode of the crankshaft is analyzed. The results for the crankshaft provide a theoretical basis for designers and reference.

Design and Application of Flexible Auxiliary Haulage System for Material Supply in Underground Coal Mine

2011 ◽  
Vol 201-203 ◽  
pp. 524-528
Author(s):  
Ju Cai Chang ◽  
Qing Hua Chen
Keyword(s):  
Coal Mine ◽  
Engineering Practice ◽  
Element Analysis ◽  
Underground Coal Mine ◽  
Material Supply ◽  
Safety Production ◽  
The Impact ◽  
Security Incidents ◽  
Interlock System ◽  
Haulage System

In view of the problems existing in the present transportation ways of coal mine, a kind of new auxiliary haulage system has been designed, which can achieve the going there and back transportation only by using one winch in the multi-slope and undulating roadway. And according to the requirements of safety production of coal mine, the non-wheeled supply mine car without anti-car device and the safety interlock system of wheeled supply mine car have been designed. Meanwhile, finite element analysis software is adopted to check and analyze the locking pawl strength of the safety interlock system with wheeled supply mine car. The analyzing result shows that the locking pawl can completely stand the impact loading when the mine car sliding down. The haulage costs and the occurrence of security incidents have been reduced when the designed system is applied to coal mine. Engineering practice shows that the good results have been achieved.

Finite Element Analysis and Structure Optimization of Machine Tool Worktable

2011 ◽  
Vol 80-81 ◽  
pp. 985-989 ◽  
Author(s):  
Dong Qiang Gao ◽  
Fei Zhang ◽  
Zhi Yun Mao ◽  
Huan Lin ◽  
Jiang Miao Yi
Keyword(s):  
High Speed ◽  
Dynamic Performance ◽  
Original Structure ◽  
High Speed Machining ◽  
Element Analysis ◽  
Performance Requirements ◽  
Machining Center ◽  
Static Performance ◽  
Overall Performance ◽  
Ansys Workbench

DVG850 high-speed machining center worktable is taken as research object, in order to meet the overall performance requirements of the high-speed machining center, 3D model of worktable is established in SolidWorks. Static analysis and modal analysis are carried out in ANSYS Workbench, and then the worktable is optimized in topology optimization module of ANSYS Workbench. According with the analysis results, the worktable structure has improved. The improved worktable keeps the original’s static performance, and enhances the dynamic performance; however, its quality is lighter than original structure by 23.2 kg.

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