We present a variational method for solving problems on their own and forced fluctuations of rods systems with slowly moved concentrated masses. Feature of the method lies in the fact that we use special approximating functions that do not require a partition to a large number of rod cells. The numerical results are shown .
стержневая система, движущаяся масса, вариационный принцип, свободные и вынужденные колебания, аппроксимирующая функция, rods system, moved mass, a variational principle, free and forced fluctuations, approximating functions
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