PIPELINE FATIGUE TESTING STAND Russian patent published in 2021 - IPC G01N3/32 G01M7/02 

FIELD: testing stands design.

SUBSTANCE: invention relates to the design of stands for testing pipelines for fatigue strength, containing special devices for fixing pipelines on a vibration stand, in particular pipelines of turbomachines. The installation contains a balancing means and at least one fitting for fixing the end of a pipeline of various diameters, the support is made in the form of a hollow cylinder with an annular flange, the outer side surface of the hollow cylinder is made in the form of a polyhedron with an even number of faces, the fitting is installed on at least one of the faces and is connected to the latter by means of a detachable connection, and on the opposite face of the support is fixed a balancing means or a fitting for balancing the system, and the device of elastic guides transmitting vibration excitations from the vibrator is directed along the axis of the support. The support is made with at least one threaded hole on each face for a detachable connection for fixing the fitting or balancing means, the mechanical loading means is made in the form of at least one ball of a certain mass with a cylindrical hole made with the possibility of rigid attachment to the opposite end of the pipeline.

EFFECT: simplifying the design, increasing the reliability and versatility of use while increasing the accuracy of the results, the ability to test pipelines of different diameters and more than one pipeline at the same time.

6 cl, 2 dwg