Expansion of an energy method potentials in dynamics of beams
The paper considers ability to increase the Ritz method accuracy during determination of natural-vibration frequencies of beams with one and several degrees of freedom. It is established that exact solution was obtained in case of system with one degree of freedom. The paper presents example of calculation for a console beam with two degrees of freedom. The problem to obtain solution for beam of physically nonlinear material with one degree of freedom is discussed.