
Symbol  Description 

A  
B  
C  
C_{b}  2ζω_{n}/ϕ^{2} (L_{t}) 
M  1/ϕ^{2} (L_{t}) 
K  ω_{n}^{2}/ϕ^{2} (L_{t}) 
Θ  χ/ϕ (L_{t}) 
 Air density 
L  Length of the beam 
F_{tip}  
M_{tip}  
M_{base}  
b_{tip}  Width of the tip body 
L_{tip}  Length of the tip body 
a_{1}, a_{3}  Aerodynamic force coefficients 
R  Load resistance 
Q  Quality factor 
ξ  Damping ratio of the structure 
 Mode shape of the structure 
 Electromechanical coefficient of piezoelectric material 
 Yield strength of piezoelectric material 
C_{p}  Capacity of piezoelectric layer 
U  Wind velocity 
V  Piezoelectric voltage 
 
Ω  Angular velocity of the motion 
χ  First natural angular velocity of the cantilever beam 
ω  
 Cantileverbeam displacement 
