Rotor Dynamics

Rotor-bearing System Dynamics of a High

Investigating the Dynamics of a Ball-Spring Autobalancer in a Rotor with Non-Linear Bearings

Although the traditional automatic ball balancer (ABB) has numerous advantages, it has two major deficiencies, i.e., it has a limited balance stable region and it increases the vibration amplitude of the rotor at transient state. These deficiencies limit the applicability of ABBs. In this regard, a new type of ABB called “the Ball-spring autobalancer” has been proposed to resolve the mentioned ...

Basis set study of classical rotor lattice dynamics.

The reorientational relaxation of molecular systems is important in many phenomenon and applications. In this paper, we explore the reorientational relaxation of a model Brownian rotor lattice system with short range interactions in both the high and low temperature regimes. In this study, we use a basis set expansion to capture collective motions of the system. The single particle basis set is...

Contributions to the Dynamics of Helicopters with Active Rotor Control

Title of dissertation: CONTRIBUTIONS TO THE DYNAMICS OF HELICOPTERS WITH ACTIVE ROTOR CONTROL Carlos A. Malpica Doctor of Philosophy, 2008 Dissertation directed by: Professor Roberto Celi Department of Aerospace Engineering This dissertation presents an aeromechanical closed loop stability and response analysis of a hingeless rotor helicopter with a Higher Harmonic Control (HHC) system for vibr...

Motion Dynamics of Walking Robots with Multi-Rotor Drive Systems

In this paper a roll-walking motion of a robot with a multi-rotor drive system is considered. The robot represents a rigid body with the multi-rotor drive system which consists of pairs of conjugate rotors located on the main axes. The multi-rotor drive system allows using conjugate spinups and captures of conjugate rotors to perform roll-walking motion of the robot. To perform a single step of...