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Each substructure, or cell, comprises a uniform pipe segment and a collar.
Most general piping analysis software can only perform ASME design stage type code compliance analysis with uniform pipe wall thickness.
The modeling is successfully tested against the analytical solution for flexural waves propagating in a uniform pipe.
The stability maps demonstrated that the collar-stiffened pipe exhibits unique stability characteristics when compared to a uniform pipe.
It was found that the stable region in the stability map enlarges for the collar-stiffened pipe when compared to a uniform pipe.
One of them is that the natural frequencies and their corresponding strain mode shapes dominate the strain response of the uniform pipe.
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It is found that, compared with uniform pipes, the decrease of density along the pipe length leads to a more stable system, while the opposite result may be obtained for the decrease of elastic modulus for small values of mass ratio.
However for those of non-uniform pipe, the responses are more likely local and many modes participate in it.
In this paper a new mechanical energy equation for the incompressible steady non-uniform pipe flow of homogeneous fluid is derived, which includes the variation of the mean turbulent kinetic energy, and the formula for the calculation of the mechanical energy transformation loss for the non-uniform flow between two cross sections is obtained based on this equation.
In the case (to which Poiseuille's law applies) of laminar flow through a uniform
The heating phase which comes before the deformation process is usually carried out in ovens equipped with short wave infrared lamps; to ensure uniform heating, pipes rotate with a given angular velocity, which represents a fundamental parameter for the success of the whole manufacturing process.
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