Casing treatment is a powerful method for improving the stability of aircraft compressors. An optimized slot-type casing was tested on first rotor highly-loaded two-stage compressor, and results showed that could not increase compressor at design off-design speeds. A coupled (CCT), which built with an injector, bridge, plenum chamber, several slots recirculating loop, proposed to enhance in pre...

Wellbore cement, a procedural component of wellbore completion operations, primarily provides zonal isolation and mechanical support of the metal pipe (casing), and protects metal components from corrosive fluids. These are essential for uncompromised wellbore integrity. Cements can undergo multiple forms of failure, such as debonding at the cement/rock and cement/metal interfaces, fracturing, ...

A structure’s material plasticity influence on the pattern of contact interaction its elements during operation is studied. The stress-strain state problem for inner casing a steam turbine high-pressure cylinder operating at supercritical parameters (over 240 atm and 565 °C) solved. solved by using finite-element software package. model thermoplasticity with kinematic isotropic hardening consid...

Guy wires are a powerful mechanical tool used widely in all industries. Most of the applications employed supporting tall structures such as antenna, communication towers, transmission lines, electric poles, and erecting flare stacks on an oil gas platform or plant. Severe wind events tornadoes primary failurein transmitting line structure many places worldwide. So, this research aims to invest...

A monitoring trial was carried out to investigate the effect of boreholes configuration on the stability and gas production rate. These boreholes were drilled from the retaining roadway at longwall mining panel 1111(1) of the Zhuji Coalmine, in China. A borehole camera exploration device and multiple gas parameter measuring device were adopted to monitor the stability and gas production rate. R...