Theoretical mechanics, mechanics of solid bodies, inertial navigation, space flight mechanics, optimal control, spacecraft, orbital motion, angular motion, orientation, robot-manipulator, quaternion, biquaternion
Main publications:
S.E. Perelyayev and Yu.N. Chelnokov., “New algorithms for determining the inertial orientation of an object”, Journal of Applied Mathematics and Mechanics, 78:6 (2014), 560-567
Ya.G. Sapunkov, Yu.N. Chelnokov, “Construction of Optimum Controls and Trajectories of Motion of the Center of Masses of a Spacecraft Equipped with the Solar Sail and Low Thrust Engine, Using Quaternions and Kustaanheimo–Stiefel Variables”, DOI: 10.1134/S0010952514060057, Cosmic Research, 52:6 (2014), 450-460
Yu.N. Chelnokov, “Quaternion Regularization in Celestial Mechanics, Astrodynamics, and Trajectory Motion Control. III”, DOI: 10.1134/S0010952515050044, Cosmic Research, 53:5 (2015), 394-409
Yu.N. Chelnokov, “Kinematic equations of a rigid body in four-dimensional skew-symmetric operators and their application in inertial navigation”, DOI: 10.1016/j.jappmathmech.2017.06.003, J. Appl. Math. Mech., 80:6 (2016), 449-458
V.G. Biryukov and Yu.N. Chelnokov, “Kinematic Problem of Optimal Nonlinear Stabilization of Angular Motion of a Rigid Body”, DOI: 10.3103/S0025654417020017, Mechanics of Solids, 52:2 (2017), 119-127