METHOD FOR DETERMINING THE FLEXIBLE RIGIDITY OF AN OBJECT Russian patent published in 2022 - IPC G01M17/08 G01M5/00 

FIELD: object flexural rigidity determination methods.

SUBSTANCE: invention relates to computational and experimental methods for determining the flexural rigidity of an object, in particular, to determining the elastic properties of a passenger car body. The method includes placing the object on rigid supports, loading it with transverse distributed and/or concentrated forces, determining values ​​in a number of design sections along the length of the object, and estimating the actual bending stiffness. In this case, the loaded object is presented in the form of a Bernoulli-Euler beam with piecewise constant bending stiffness and the geometric bending stiffness is calculated using the values ​​of vertical forces and piecewise constant distributed loads applied to the object when implementing the proposed method. Then, the actual bending stiffness, proportional to the calculated geometric stiffness, is calculated using the least squares method using the deflection values ​​in a number of design sections of the object.

EFFECT: increasing the accuracy of determining the values ​​of the dynamic characteristics of a transport object, a significant reduction in the time required for measurements.

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