FIELD: mechanical engineering.
SUBSTANCE: method for determining rigidity of elastic elements of low rigidity. A load is applied to the elastic element, the amount of movement of the point of application of the load to the elastic element is measured, a suspended load is used to create the load, the load acts on the elastic element in the horizontal direction, the cable on which the first load is suspended, which determines the vertical direction, is not connected to the elastic element, create a small load with the second load suspended on the second cable connected to the elastic element. In this case, the mass of the suspended second load should significantly exceed the sum of the masses of the second cable and the elastic element itself. The elastic element is attached with one end to the second cable in the suspension area of the upper part of the second load, with the other end, it is attached to a massive movable support, gradually shifting it, the amount of displacement of the support is measured, the amount of displacement of the second load is measured. Knowing the displacement of the second load ΔU, its mass m, the length of the second cable Lo, the amount of change in the length of the elastic element ΔX, calculate the angle Δϕ deviation of the second cable from the vertical, load increment ΔP, and the rigidity of the elastic element under study C.
EFFECT: improved measurement efficiency.
1 cl, 2 dwg
