On modal methods for eigensensitivity of discrete vibratory systems;

The eigen-sensitivity analysis of vibration should also take the influence of this fluid flow into consideration.

Due to complex design needs and enhanced precision requirements involved in modern engineering scenarios,second and higher order eigen-sensitivity is strongly demanded in dynamic system design,analysis and identification.

A flexibility matrix-based damage locating technique was used to find the most possible damaged elements of the structure,and then the damage severity was estimated using the second order eigen-sensitivity analysis method.

The mass-normalized mode shapes were obtained from the eigen-sensitivity analysis.

The LDAE models are formed first for various power system components,the modularized system model is then quickly established according to network topology,based on which and with all algebraic variables and system structure preserved,the generalized formula for eigenvalue and eigenvector calculation are deduced for eigenvalue sensitivity analy.

<Abstrcat> Under deterministic system operating condition,PSS parameters are designed by using the eigenvalue sensitivity approach to investigate the feasibility of parameters optimization using the nonlinear programming technique.