Training. allowance. — Khabarovsk: . DVGUPS, 2006. — 75 s. The textbook corresponds to the discipline "Theoretical Mechanics" in the direction of training of certified specialists 190300 "Mobility of Railways" specialties 190301 "Locomotives" , 190302 "Wagons" , 190303 "Electrical Transport of Railways" , Direction 270200 "Transport Construction" specialty 270204 "Construction of Railways" , The Way and the Way" (CM) » Direction 190700 "Organization of transportation and management in transport" specialty 190701 "Organization of transportation and management in transport (rail)" . The manual provides methods for solving typical problems and variants of problems for independent solution in the "Dynamics" section of the course of theoretical mechanics . Designed for students of the 1st and 2nd courses of all forms of education, studying the discipline "Theoretical Mechanics" . Content. Dynamics of the material point . Theorem about changing the kinetic moment of the system. Kinetic moment of the material point with respect to the axis. The kinetic moment of the system with respect to the axis. The law of conservation of the kinetic moment of the system with respect to the axis. The theorem on the change of the kinetic moment of the system with respect to the axis. Theorem of change of kinetic energy of the system. Constant force operation on straight-line movement. Work force of gravity. Constant torque applied to the rotating body. The work of a constant force applied to a body making a plane-parallel motion. Operation of constant friction force during body slip. Operation of constant friction forces during wheel rolling without slippage. Variable force operation on rectilinear displacement. Variable torque operation applied to rotating body. Kinetic energy of a system with one degree of freedom Theorem of change of kinetic energy of the system. Differential equations of solid motion. Differential equation of rotation of the body around the fixed axis . Differential equations of plane-parallel motion of the body . The Dalumber Principle . General Instructions. Calculation of inertial forces for various motions of points and bodies. Force of inertia of the material point . Inertia forces in the translational motion of a solid. Inertia forces in the rotational motion of a solid having a plane of material symmetry. Inertia forces in a plane-parallel motion of a solid having a plane of material symmetry. Inertia forces for the general case of body movement. Method of application of the Dalumber principle for solving problems. The principle of possible displacements and the general equation of system dynamics. Possible displacements and number of degrees of freedom of the system. The principle of possible displacement. General Instructions. The method of solving problems using the principle of possible displacements for systems with one degree of freedom The method of solving problems using the principle of possible displacements for systems with two degrees of freedom Application of the principle of possible displacements to determine support reactions. The Dalumber-Lagrange Principle . General Instructions. Method of solving problems by means of general equation of dynamics for systems with one degree of freedom. Application of the general equation of dynamics for the study of the motion of systems with two degrees of freedom