Investigation of the stress-strain state of seamless pipe in the initial state
Journal Title: Archive of Mechanical Engineering - Year 2014, Vol 0, Issue 4
Abstract
Mechanical properties of the pipeline samples that had been cut in annular and axial directions were investigated. The methodology of modeling and calculation of the real stress-strain state was described. The stable state during in the deformation process was defined. The results of the experimental researches were used as a test variant during examination of pipe strength.
Authors and Affiliations
Jerzy Małachowski, Petr Yukhumets, Grigorii Beliaiev, Roman Dmitryenko, Ihor Prudki, Volodymyr Hutsaylyuk
Investigation of design features of compressor casing treatment
Casing treatment in the form of circumferential grooves over a rotor blade tips is used for improvement of an axial compressor performance. Usually, these grooves extend compressor’s stall range (stable operational range...
The accuracy of the reproduction of the lumbar spine elements following CT and MRI projections
The paper presents an analysis of factors influencing the accuracy of reproduction of geometry of the vertebrae and the intervertebral disc of the lumbar motion segment for the purpose of designing of an intervertebral d...
Robin Heart surgery robotic system. Challenges in mechanical construction, control system and stuff training before first clinical application
The last decades, when robots have appeared in the operating room, showed the possibility of surgery enhancement by improving precision, repeatability, stability and dexterity. However, taking into consideration still ex...
A method of the wear prognosis of sliding bearings
The considerations presented in this paper include a computer analysis of slide bearing wear prognosis using the solutions of recurrence equations complemented with the experimental data values. On the ground of the resu...
Comparative performance with different versions of low heat rejection combustion chambers with crude rice bran oil
It has been found that the vegetable oils are promising substitute, because of their properties are similar to those of diesel fuel and they are renewable and can be easily produced. However, drawbacks associated with cr...