Page 229 - Mechatronic Systems Modelling and Simulation with HDLs

218 APPENDIX

p m Average pressure in the cylinder
Q Charge

q i Value of a boundary condition; generalised coordinate
r Rotational degree of freedom; exciting function; radial
local variable
s Natural coordinate
s-coordinate of a Gauss–Legendre integration point
s i
t Time; natural coordinate
Thickness of cavity
t c
Thickness of the insulator
t i
t-coordinate of a Gauss–Legendre integration point
t j
Trigger signal at crankshaft
t cs
Plate thickness
t p
u Voltage; deflection
u i Node displacement in x-direction
u ij Voltage between the nodes i, j
v Velocity; deflection
v Local velocity
v i Node displacement in y-direction
w Excitation
x Variable; global coordinate
x k Input signal at time k
y Global coordinate

y k Output signal at time k
y k Output signal of the identified model at time k
z k Measured response signal
Upper case letters
A Area
Boundary condition i; flexural strength of element i
B i
C Capacitance
Constant i
C i
Capacitance between the nodes i, j; entry i, j of the
C ij
capacitance matrix
D Flexural strength; range of a partial differential equation
E Modulus of elasticity
F Force; Property of a circuit
I Moment of inertia
I, i Current
J Moment of inertia
L Inductance, differential operator
L ij Inductance between the nodes i, j; entry i, j of the
inductance matrix
M Torque