Metadata (abstracts and keywords) for the articles in the journal
A.A. Azarov, A.L. Popov, D.A. Chelyubeev Some features of frequency identification of axial load in beam specimens // Vestnik I. Yakovlev Chuvach State Pedagogical University. Series: Mechanics of a limit state . 2023. № 3(57). p. 84-90
Author(s):
A.A. Azarov, A.L. Popov, D.A. Chelyubeev
Index of UDK:
539.3
DOI:
10.37972/chgpu.2023.57.3.007
Title:
Some features of frequency identification of axial load in beam specimens
The evaluation of forces and joint stiffness is important for the inspection of rod elements. The existing evaluation methods are divided into static and dynamic methods. The paper considers a method of dynamic evaluation of longitudinal force in a fixed rod based on its bending vibration spectrum by comparing the experimentally recorded vibration frequencies with the theoretical frequency spectrum obtained from the Timoshenko beam model. The basin-hopping algorithm is used to harmonize the results of the theoretical model with the set of experimental frequencies. The peculiarity of multidirectional variation of the natural frequencies of bending vibrations during rod stretching in the region of weakly nonlinear stress-deformation dependence is revealed.
The contact details of authors:
Azarov Artur Alexandrovich, Postgraduate student, Moscow State University of Civil Engineering, Moscow, Russia.
Popov Alexander Leonidovich, Dr. Sci. Phys. & Math., Professor, Leading Research Worker, Ishlinsky Institute for Problems in Mechanics of the RAS, Moscow, Russia.
Chelyubeyev Dmitriy Anatol’evich, Leading engineer, Ishlinsky Institute for Problems in Mechanics of the RAS, Moscow, Russia.
Russian
English