Revisiting Rotor Rigid Body Modes: Parametric Study of Stability
نویسندگان
چکیده
منابع مشابه
Estimation of Rigid Body Modes for System Model Development
Rigid body modes are a necessary set of modes used in the development of component system models. Often these modes are difficult to obtain during modal testing due to instrumentation limitations or test difficulties. Using a combination of singular value decomposition, modal parameter estimation to purge higher order mode effects and structural dynamic modification, a set of appropriately scal...
متن کاملOn the characteristic modes of a rigid body under forces
It is recently shown in [1, 2] that the exact analytical solution of a rigid body controlled by a linear feedback law may directly be written down in terms of eigenvalues and eigenvectors. However, this control has been computed in previous work [3] for the regulation of satellite angular momentum when the flywheels are at rest. Therefore, the method will here be extended to deal with the struc...
متن کاملRigid Rotor in Phase Space
Angular momentum is important concept in physics, and its phase space properties are important in various applications. In this work phase space analysis of the angular momentum is made from its classical definition, and by imposing uncertainty principle its quantum properties are obtained. It is shown that kinetic energy operator is derived, but it has different interpretation of its parts tha...
متن کاملThe fractional symmetric rigid rotor
Based on the Riemann fractional derivative the Casimir operators and multiplets for the fractional extension of the rotation group SO(n) are calculated algebraically. The spectrum of the corresponding fractional symmetric rigid rotor is discussed. It is shown, that the rotational, vibrational and γ-unstable limits of the standard geometric collective models are particular limits of this spectru...
متن کاملEffects of asymmetric stiffness on parametric instabilities of rotor
This work deals with effects of asymmetric stiffness on the dynamic behaviour of the rotor system. The analysis is presented through an extended Lagrangian Hamiltonian mechanics on the asymmetric rotor system, where symmetries are broken in terms of the rotor stiffness. The complete dynamics of asymmetries of rotor system is investigated with a case study. In this work, a mathematical model is ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Rotating Machinery
سال: 1999
ISSN: 1023-621X
DOI: 10.1155/s1023621x99000172