Abstract
Nonstationary vibrations of strings and their systems, caused by a finite numbers of concentrated loads, are considered. External forces can be simulated by nonstationary concentrated loads. We can use nonstationary concentrated loads to simulate the external forces and reactions, conformed to influence of mass or dampers. A generalized layout of research was built for system of strings, where all strings intersect a common one. A method for constructing the system of equations is given. The system consists of one-dimensional wave equations for several strings. The system is closed by additional relations in contact points. The obtained system is the system of Volterra integral equations. The system is reduced to block matrix equation after discretization. The problem of nonstationary string vibrations with two joined dampers is solved as an example.
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