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Buckling analysis of the shell of a refuge chamber in a

Jan 01, 2012 The shell is a very important module of a refuge chamber, which should have strong impact resistance and a high level of security. Stiffened cylindrical shells are normally used in coal mine refuge chambers. Critical stress in buckling of stiffened shells is much higher than that of non-stiffened shells of equal quality.

Buckling analysis of the shell of a refuge chamber in a

A stiffened cylindrical shell is normally used in refuge chambers of a coal mine. Based on the method of application and shape characteristics of a refuge chamber, we simplified its shell as an orthotropic cylinder. The basic buckling equation of the stiffened cylindrical shell under uniform axial compression was deduced by using a Donnell

Buckling analysis of the shell of a refuge chamber in a

Buckling analysis of the shell of a refuge chamber in a coal mine under uniform axial compression January 2012 International Journal of Mining Science and Technology 22(1):85–88

International Journal of Mining Science and Technology

select article Buckling analysis of the shell of a refuge chamber in a coal mine under uniform axial compression. Research article Full text access Buckling analysis of the shell of a refuge chamber in a coal mine under uniform axial compression. Haifeng Fang, Shirong Ge, Lihua Cai, Eryi Hu. Pages 85-88 Download PDF. Article preview.

Buckling Capacity Optimization of Coal Mine Refuge Chamber

The cylindrical shell with rectangle stiffeners was usually utilized in coal mine refuge chambers. Aiming at the buckling deformation of thin cylindrical shell under uniform axial compression, finite element analysis software ANSYS was employed to set up the optimization model of stiffened cylindrical shell, and the sequential linear programming method was executed to optimize the thickness of

Haifeng FANG Jiangsu University of Science and

Buckling analysis of the shell of a refuge chamber in a coal mine under uniform axial compression. Lihua Cai. Eryi Hu. A stiffened cylindrical shell is normally used in refuge chambers of a

RETRACTED: Time and wavelength-resolved luminescence

Nov 13, 2010 Buckling analysis of the shell of a refuge chamber in a coal mine under uniform axial compression International Journal of Mining Science and Technology, Volume 22, Issue 1, 2012, pp. 85-88 Download PDF View details

Eryi HU PhD China University of Mining and Technology

Buckling analysis of the shell of a refuge chamber in a coal mine under uniform axial compression. Lihua Cai. Eryi Hu. A stiffened cylindrical shell is normally used in refuge chambers of a

BUCKLING OF SHELLS—PITFALL FOR DESIGNERS

stress, buckling, and vibration analysis of shells of revolution. Many of the examples in this survey article are based on applications of these computer programs to practical problems involving complex shell structures. In 1975 Dr. Bushnell received the ONR/AIAA Structural Mechanics Research

12 Buckling Analysis Rice University

utilizes the SW Simulation buckling feature to determine the lowest buckling load. To do that: 1. Right click on the Part nameÆStudy to open the Study panel. 2. Assign a new Study name, select Buckling as the Type of analysis, and use the thin shell as the Model type, click OK. 3.

Research on Performance of Coal Mine Refuge Chamber

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

Eryi HU PhD China University of Mining and Technology

Buckling analysis of the shell of a refuge chamber in a coal mine under uniform axial compression. Lihua Cai. Eryi Hu. A stiffened cylindrical shell is normally used in refuge chambers of a

Coal Mine Refuge Chambers

techniques to build chambers that can withstand the concussive forces of extreme blasts and explosions within heavy industry. Through careful analysis of a site’s application and hazard assessment, MineARC can engineer a highly customised refuge chamber or safe haven to

Optimum Design of Shell Structures with Stiffening Beams

Buckling Capacity Optimization of Coal Mine Refuge Chamber's Shell Under Uniform Axial Compression. Buckling Analysis and Optimization of Stiffened Cylindrical Shells under Uniform Axial Compression. 1 January 2011 Key Engineering Materials, Vol. 462-463.

Simulation Analysis on Structure Safety of Refuge Chamber

924 LUO Xingna et al. / Procedia Engineering 45 ( 2012 ) 923 929 production of coal mine mobile refuge chamber a hot spot. The cost of producing refuge chamber is huge and if the structure safety analysis has been taken during the design stage, it can effectively reduce the production inputs.

Analysis of Heat Stress and the Indoor Climate Control

Analysis of Heat Stress and the Indoor Climate of air temperature outside the refuge chamber and the overall heat transfer coefficient of the refuge chamber shell on the heat stress inside the refuge chamber was also investigated. It is urgent to develop new technology to reduce the rate of fatalities in coal mining accidents. Movable

Analysis on Effect of Heat Bridge to Heat Transfer of

In order to improve the heat-insulating capability of the refuge chamber’s shell and reduce energy consumption of the cooling system, the horizontal cylindrical mobile refuge chamber for coal mine was taken as the research object. By selecting two connection types between the inner shell and the outer shell for calculation, which were direct connection type and indirect connection type, and

Optimization of environmental maintenance system used in a

Nov 14, 2015 Mine refuge chambers are used to shield miners who fail to escape from the mine when incidents occur. Environment maintaining system plays a key role in stabilizing thermal environment of a mine refuge chamber against heat emitted from metabolism and transferred from outside. The safety and comfort of refugees are closely related to the environment maintaining system design.

Analysis of Heat Stress and the Indoor Climate Control

May 20, 2016 Due to the novelty of movable refuge chambers, they have attracted much attention in recent years. Fasouletos performed a parametric study on the requirements for designing an optimal refuge chamber.Mitchell examined the capability of refuge chambers to withstand overpressure and the requirements for the internal air and thermal environment of refuge chambers.

PropagatingCharacteristicofPremixedMethane鄄Oxygen

JournalofBeijingInstituteofTechnology,2018,Vol.27,No.1 PropagatingCharacteristicofPremixedMethane鄄Oxygen DeflagrationintheCoalMineLaneIncludinga

Pdf Of Illigal Mining

2019-5-19 · Propelled by the skyrocketing global price of minerals, illegal mining has recently come into focus as a major environmental and social concern. Images of pristine rainforest scarred by clear-cuts, toxic mercury released into rivers and the air, and accounts of human trafficking, child labor and prostitution in remote mining encampments all point to the need for Latin American

Research on key technology of waterproof refuge chamber

the refuge chamber passed a durability test, where all systems were tested running steady. The test offers a reference for the establishment of related criteria and paves way for the upgrading of the standards for non-coal mine emergency rescue. 1. Refuge chamber location and index analysis 1.1. General conditions of mine

Buckling Capacity Optimization of Stiffened Rectangular

the blast airtight doors of coal mine refuge chambers. Usually, the stiffened plates have bigger buckling buckling and post-buckling of thin plate and shell under normal compression. Moreover, the elastoplastic optimization results analysis, the buckling

IJERPH Free Full-Text Analysis of Heat Stress and the

Movable refuge chambers are a new kind of rescue device for underground mining, which is believed to have a potential positive impact on reducing the rate of fatalities. It is likely to be hot and humid inside a movable refuge chamber due to the metabolism of trapped miners, heat generated by equipment and heat transferred from outside. To investigate the heat stress experienced by miners

Simulation Analysis on Structure Safety of Refuge Chamber

924 LUO Xingna et al. / Procedia Engineering 45 ( 2012 ) 923 929 production of coal mine mobile refuge chamber a hot spot. The cost of producing refuge chamber is huge and if the structure safety analysis has been taken during the design stage, it can effectively reduce the production inputs.

Buckling Capacity Optimization of Stiffened Rectangular

the blast airtight doors of coal mine refuge chambers. Usually, the stiffened plates have bigger buckling buckling and post-buckling of thin plate and shell under normal compression. Moreover, the elastoplastic optimization results analysis, the buckling

Analysis on Effect of Heat Bridge to Heat Transfer of

In order to improve the heat-insulating capability of the refuge chamber’s shell and reduce energy consumption of the cooling system, the horizontal cylindrical mobile refuge chamber for coal mine was taken as the research object. By selecting two connection types between the inner shell and the outer shell for calculation, which were direct connection type and indirect connection type, and

Research on key technology of waterproof refuge chamber

the refuge chamber passed a durability test, where all systems were tested running steady. The test offers a reference for the establishment of related criteria and paves way for the upgrading of the standards for non-coal mine emergency rescue. 1. Refuge chamber location and index analysis 1.1. General conditions of mine

Analysis of Heat Stress and the Indoor Climate Control

May 20, 2016 Due to the novelty of movable refuge chambers, they have attracted much attention in recent years. Fasouletos performed a parametric study on the requirements for designing an optimal refuge chamber.Mitchell examined the capability of refuge chambers to withstand overpressure and the requirements for the internal air and thermal environment of refuge chambers.

IJERPH Free Full-Text Analysis of Heat Stress and the

Movable refuge chambers are a new kind of rescue device for underground mining, which is believed to have a potential positive impact on reducing the rate of fatalities. It is likely to be hot and humid inside a movable refuge chamber due to the metabolism of trapped miners, heat generated by equipment and heat transferred from outside. To investigate the heat stress experienced by miners

The Segment Loading Static Finite Element Analysis on the

This paper studied the difference between the segment loading static analysis method and the uniform loading static analysis method on the mobile refuge chamber. The structure strength static analysis of the mobile refuge chamber was made in the uniform and segment loading ways by the finite element software SolidWorks Simulation. The stress cloud charts and the displacement cloud charts were

Hai Feng Fang Scientific.Net

Abstract: In order to research the problem of rescue chamber colliding with the tunnel wall. The theoretical model of rescue chamber has been formed, based on the principle of energy conservation, by using theories of plates and shells, large deformed plate and shell, and by analysis of dynamic response of mine rescue chamber under axial impact load.

Status quo and prospect of the development for underground

As one form of the energy resources, coal is becoming more and more important. Due to the particularity in coal mine production, mine accidents some time occur in countries all over the world, which result in large casualties and economic losses. As equipment that can provides the miners with an emergency shelter when the coal mine accidents occur, the underground coal mine refuge chamber is

PropagatingCharacteristicofPremixedMethane鄄Oxygen

JournalofBeijingInstituteofTechnology,2018,Vol.27,No.1 PropagatingCharacteristicofPremixedMethane鄄Oxygen DeflagrationintheCoalMineLaneIncludinga

A Novel Design of Rescue Capsule considering the Pressure

H. Fang, S. Ge, L. Cai, and E. Hu, “Buckling analysis of the shell of a refuge chamber in a coal mine under uniform axial compression,” International Journal of Mining Science and Technology, vol. 22, no. 1, pp. 85–88, 2012. View at: Publisher Site Google Scholar

CN202792265U Air dehumidification gas-liquid separator

The utility model relates to an air dehumidification gas-liquid separator which is arranged in a coal mine underground mobile hard escape capsule or a temporary refuge chamber and provides an air dehumidification gas-liquid separator based on the combination of chemical adsorption and physical condensation. The air dehumidification gas-liquid separator comprises a cyclone separator consisting

Study on External Protective System of Waterproofing

Refuge chamber, which have positive impacta on facilitating escape for miners trapped underground by a fire, s explosion, or rock collapse, need further perfection and research with respect to waterproofing function at present in China in case of mine floods. A waterproofing refuge chamber, designed for the survival of 50 miners for at least 96

IJERPH Free Full-Text Analysis of Heat Stress and the

Movable refuge chambers are a new kind of rescue device for underground mining, which is believed to have a potential positive impact on reducing the rate of fatalities. It is likely to be hot and humid inside a movable refuge chamber due to the metabolism of trapped miners, heat generated by equipment and heat transferred from outside. To investigate the heat stress experienced by miners