Analytical stability analysis of periodic systems by Poincaré mappings with application to rotorcraft dynamics.
Attitude control of spacecraft
Determinazione delle classi di moto del solido pesante caratterizzate da un invariante polinomiale
Doubly asymptotic trajectories of Lagrangian systems and a problem by Kirchhoff
We consider Lagrangian systems with Lagrange functions which exhibit a quadratic time dependence. We prove the existence of infinitely many solutions tending, as , to an «equilibrium at infinity». This result is applied to the Kirchhoff problem of a heavy rigid body moving through a boundless incompressible ideal fluid, which is at rest at infinity and has zero vorticity.
Esistenza e determinazione delle precessioni semiregolari ad asse verticale di un corpo rigido in un campo di forze newtoniano
Evaluation of the half-periods of the Weierstrass -function for the absolute invariant greater than one
Hyperbolic functions that linearize inverted manifold surfaces.
Large quadratic programming problems generated by rigid body simulation.
Mouvement d'un projectile dans l'air
On classical dynamics of affinely-rigid bodies subject to the Kirchhoff-Love constraints.
On one approach to investigation of mechanical systems.
On the characteristic modes of a rigid body under forces
On the KAM - Theory Conditions for the Kirchhoff Top
* Partially supported by Grant MM523/95 with Ministry of Science and Technologies.In this paper the classical Kirchhoff case of motion of a rigid body in an infinite ideal fluid is considered. Then for the corresponding Hamiltonian system on the zero integral level, the KAM theory conditions are checked. In contrast to the known similar results, there exists a curve in the bifurcation diagram along which the Kolmogorov’s condition vanishes for certain values of the parameters.
Precessioni ad asse verticale del solido pesante
Questioni di dinamica del corpo rigido
Rotazioni uniformi in un campo newtoniano con forze di potenza nulla
Smoothness of the motion of a rigid body immersed in an incompressible perfect fluid
We consider the motion of a rigid body immersed in an incompressible perfect fluid which occupies a three-dimensional bounded domain. For such a system the Cauchy problem is well-posed locally in time if the initial velocity of the fluid is in the Hölder space . In this paper we prove that the smoothness of the motion of the rigid body may be only limited by the smoothness of the boundaries (of the body and of the domain). In particular for analytic boundaries the motion of the rigid body is analytic...
Some New Research Areas and Trends in Today Robotics
Su una classe di precessioni generalizzate semiregolari del solido pesante
Sulle precessioni generalizzate semiregolari del solido pesante