Biomedical Engineering Reference
In-Depth Information
x
1
x
2
B
1
B
2
f(t)
M
1
M
2
K
1
K
2
B
1
B
2
FIGURE 13.71
Illustration for Exercise 1.
2.
Consider the system shown in Figure 13.72 defined with
M
1
¼
2kg,
B
1
¼
1N-s/m,
B
2
¼
2N-s/m,
K
1
¼
5N/m,and
K
2
¼
2N/m.Let
f
(
t
) be the applied force, and
x
1
and
x
2
be the
displacements from rest. (a) Find the transfer function. (b) Solve for
x
2
(
t
)if
f
(
t
)
¼
u
(
t
) N and
zero initial conditions. (c) Simulate the solution with SIMULINK if
f
(
t
)
¼
u
(
t
)Nandzero
initial conditions. (c) Use MATLAB to draw the Bode diagram.
x
2
f(t)
x
1
B
1
B
2
M
1
K
1
K
2
B
1
FIGURE 13.72
Illustration for Exercise 2.
3.
Consider the system illustrated in Figure 13.73 defined with
M
1
¼
3kg,
M
2
¼
1kg,
B
1
¼
1N-s/m,
B
2
¼
2N-s/m,
K
1
¼
1N/m,and
K
2
¼
1N/m.Let
f
(
t
) be the applied force, and
x
1
and
x
2
be
x
2
K
2
M
2
K
1
B
1
B
2
x
1
M
1
f(t)
FIGURE 13.73
Illustration for Exercise 3.
