Читать книгу Introduction to Mechanical Vibrations - Ronald J. Anderson - Страница 24

There two types of nonlinearities that we will often be required to deal with. They are (1) geometric nonlinearities and (2) structural nonlinearities. Geometric nonlinearities arise from trigonometric functions of large angles and structural nonlinearities are due to the inherent nonlinear stiffness (i.e. force versus deflection characteristic) of materials for large deflections.