METHOD OF DETERMINATION AND PERIODIC TEST OF DEFORMATION VALUES OF PARTS OF STRUCTURES ( VARIANTS ) AND GEAR FOR ITS REALIZATION ( VARIANTS ) Russian patent published in 2002 - IPC

FIELD: measurement technology. SUBSTANCE: rod is pressed against jacket across specified section and clearances W_i between internal face of rod and surface of shell are measured to determine deformation of shell. Value ε_u of uniform tensile deformation of shell and value ε_be of flexural strain are found by mathematical dependencies. Rod with supports is employed to determine deformation of internal surfaces. Deformations W_i and W_max near structural units having form of shaping strips are measured along lines on shell emerging from centers of these shaping strips in radial directions and values ε_u and ε_be of deformation are found by them. Rectilinear rod with length L L<R₀/2, where R₀ is radius of outer surface of long-length shell ) is used to measure long-length shells. Rod has supports positioned from middle of its length at equal distances l/2. Gear for realization of method comes in the form of rod that has two sections: first section is equal to length of tested surface, second section l_np = (0,8-1,2)l_K is equal to length of pressing of rod against tested surface. Faces of rod are equidistant from generatrix of tested shell. Form of rod varies depending on type of tested shell. EFFECT: simple method for fast determination of values of deformation of various parts of structures. 7 cl, 9 dwg