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1
8
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atio
n
s
o
n
u
n
b
ala
n
ce
d
m
a
g
n
e
tic
f
o
r
ce
(
UM
F)
in
p
er
m
a
n
en
t
m
ag
n
et
m
ac
h
i
n
e
[
5
]
.
T
h
e
au
th
o
r
in
v
esti
g
ate
s
t
h
e
in
f
l
u
e
n
ce
o
f
s
lo
t
a
n
d
p
o
le
n
u
m
b
er
co
m
b
in
at
io
n
s
o
n
t
h
e
UM
F.
UM
F
m
a
y
b
e
d
iv
id
ed
in
to
t
w
o
co
m
p
o
n
e
n
ts
d
u
e
to
th
e
r
ad
ial
an
d
ta
n
g
e
n
tial
tr
av
elin
g
f
o
r
ce
w
a
v
es.
J
af
ar
i
et.
al
h
as
b
ee
n
co
n
ce
r
n
ed
ab
o
u
t
th
r
ee
-
d
i
m
e
n
s
io
n
al
f
in
ite
-
ele
m
en
t
-
m
o
d
el
i
n
v
e
s
ti
g
a
tio
n
o
f
a
x
ia
l
-
f
l
u
x
p
er
m
a
n
e
n
t
m
a
g
n
e
t
B
L
DC
m
ac
h
in
e
s
w
it
h
s
i
m
ilar
p
o
le
an
d
s
lo
t
co
m
b
in
at
io
n
f
o
r
elec
tr
ic
v
eh
icle
s
[
6
]
.
T
h
e
au
th
o
r
i
n
v
e
s
ti
g
ates
p
er
f
o
r
m
a
n
ce
o
f
ax
ia
l
-
f
l
u
x
s
u
r
f
ac
e
m
o
u
n
ted
p
er
m
a
n
e
n
t
m
a
g
n
et
B
L
DC
m
ac
h
i
n
es
w
i
t
h
co
n
ce
n
tr
ated
w
i
n
d
in
g
s
,
co
n
s
i
d
er
in
g
a
co
m
p
ar
ativ
e
s
t
u
d
y
b
et
w
ee
n
t
w
o
to
p
o
lo
g
ies
w
it
h
s
i
m
ilar
s
lo
t
n
u
m
b
er
an
d
p
o
le
n
u
m
b
er
:
a
9
s
lo
t/1
0
p
o
le
m
ac
h
i
n
e
(
s
lo
t
n
u
m
b
er
an
d
p
o
le
n
u
m
b
er
d
if
f
er
b
y
1
)
an
d
a
1
2
s
lo
t/1
0
p
o
le
m
ac
h
in
e
(
s
lo
t
n
u
m
b
er
an
d
p
o
le
n
u
m
b
er
d
if
f
er
b
y
2
)
.
C
o
g
g
in
g
to
r
q
u
e,
w
i
n
d
in
g
in
d
u
ctan
ce
,
o
u
tp
u
t
to
r
q
u
e,
an
d
u
n
b
alan
ce
d
to
r
q
u
e
ex
er
ted
o
n
b
ea
r
in
g
ar
e
o
b
tain
ed
f
o
r
th
e
t
w
o
3
.
4
k
W
m
o
to
r
s
[
6
]
.
Su
n
g
et.
al
s
tu
d
ie
s
ab
o
u
t
f
l
u
x
f
l
u
ct
u
atio
n
s
i
n
r
o
to
r
co
r
e
ac
co
r
d
in
g
to
p
o
le
an
d
s
lo
t
co
m
b
in
a
tio
n
[
7
]
.
I
n
s
o
m
e
p
o
le
-
s
lo
t
co
m
b
i
n
ati
o
n
s
,
th
e
r
o
to
r
'
s
co
r
e
lo
s
s
is
t
o
o
im
p
o
r
tan
t
to
b
e
n
eg
lec
ted
b
ec
au
s
e
o
f
h
i
g
h
f
lu
x
f
lu
ct
u
atio
n
i
n
r
o
to
r
co
r
e.
T
h
e
m
aj
o
r
r
ea
s
o
n
s
f
o
r
t
h
e
f
lu
x
f
l
u
ctu
a
tio
n
s
o
f
r
o
to
r
ar
e
th
e
p
o
le
-
s
lo
t
n
u
m
b
er
co
m
b
in
atio
n
,
an
d
t
h
e
s
h
ap
es
o
f
te
eth
an
d
p
o
les
in
th
e
air
-
g
ap
[
8
-
9
]
.
Mo
s
taf
a
et.
al
s
tu
d
ie
s
ab
o
u
t
in
f
l
u
e
n
c
e
o
f
p
o
le
an
d
s
lo
t
co
m
b
i
n
atio
n
s
o
n
m
ag
n
et
ic
f
o
r
ce
s
a
n
d
v
ib
r
atio
n
i
n
lo
w
-
s
p
ee
d
B
L
D
C
w
i
n
d
g
e
n
er
ato
r
s
[
1
0
]
.
B
L
DC
m
ac
h
in
e
s
w
it
h
co
n
ce
n
tr
ated
w
i
n
d
i
n
g
s
co
u
ld
b
e
b
en
ef
icial
in
d
ir
ec
t
-
d
r
iv
e
w
i
n
d
g
en
er
ato
r
s
s
i
n
ce
it
is
p
o
s
s
ib
le
to
r
ed
u
ce
th
e
s
ize
an
d
w
ei
g
h
t
o
f
th
e
g
e
n
er
ato
r
[
1
0
]
.
T
h
e
B
L
DC
m
ac
h
i
n
es
w
it
h
co
n
ce
n
tr
ated
w
i
n
d
i
n
g
s
h
a
v
in
g
a
lar
g
e
n
u
m
b
er
o
f
p
o
les
ar
e
c
o
m
p
ar
ed
to
in
v
est
ig
ate
t
h
e
e
f
f
ec
t
o
f
p
o
le
an
d
s
lo
t
co
m
b
i
n
atio
n
s
o
n
f
o
r
ce
an
d
v
ib
r
atio
n
ch
ar
ac
ter
is
tics
in
lo
w
s
p
ee
d
g
e
n
er
ato
r
s
.
T
h
e
B
L
DC
m
ac
h
in
e
s
w
i
t
h
co
n
ce
n
tr
ated
w
i
n
d
in
g
s
ar
e
b
ec
o
m
i
n
g
attr
ac
ti
v
e
i
n
s
e
v
e
r
al
ap
p
licatio
n
s
[
1
1
]
-
[
1
6
]
.
T
h
ey
h
a
v
e
s
e
v
er
al
ad
v
an
ta
g
es
o
v
er
tr
ad
itio
n
al
B
L
DC
m
ac
h
in
e
s
w
it
h
d
is
tr
ib
u
ted
w
in
d
i
n
g
s
s
u
ch
a
s
s
h
o
r
t
en
d
-
w
i
n
d
in
g
s
,
lo
w
co
g
g
i
n
g
to
r
q
u
e,
an
d
lo
w
er
co
s
t
m
o
d
u
le
lev
e
l
m
a
n
u
f
ac
t
u
r
in
g
[
1
7
]
,
[
1
8
]
.
I
t
h
as
b
ee
n
r
ec
o
g
n
ized
i
n
[
1
9
]
-
[
2
2
]
th
at
v
ib
r
atio
n
le
v
el
o
f
m
o
d
u
lar
m
ac
h
i
n
es
ca
n
b
e
co
n
s
id
er
ab
l
y
h
i
g
h
er
t
h
an
tr
ad
itio
n
al
m
ac
h
i
n
es.
T
h
i
s
i
s
m
ai
n
l
y
d
u
e
to
th
e
p
r
esen
ce
o
f
th
e
lo
w
h
ar
m
o
n
ic
o
r
d
er
s
in
th
e
r
ad
ial
m
ag
n
etic
f
o
r
ce
d
is
tr
ib
u
tio
n
.
S
p
ec
if
ic
d
i
m
e
n
s
io
n
al
ch
ar
ac
ter
is
tic
s
o
f
t
h
e
B
L
DC
m
ac
h
in
e
s
w
it
h
h
ig
h
n
u
m
b
er
o
f
p
o
les
s
h
o
u
ld
al
s
o
b
e
co
n
s
id
e
r
ed
f
r
o
m
a
v
ib
r
atio
n
p
er
s
p
ec
tiv
e.
I
n
th
e
ca
s
e
o
f
h
o
llo
w
r
o
to
r
B
L
DC
m
o
to
r
,
th
er
e
is
s
till
li
m
i
ted
p
u
b
licatio
n
th
at
d
is
c
u
s
s
ed
th
e
w
i
n
d
i
n
g
ar
r
an
g
e
m
e
n
t
esp
ec
ial
l
y
f
o
r
8
p
o
le
r
o
to
r
.
Fu
r
th
er
m
o
r
e,
h
o
llo
w
r
o
to
r
m
o
to
r
f
o
r
t
h
is
r
esear
ch
s
t
u
d
ies
i
s
co
n
s
id
er
ed
as
s
m
a
ll
m
o
to
r
s
iz
e
(
4
0
m
m
d
ia
m
eter
)
.
T
h
u
s
,
t
h
i
s
p
ap
er
s
tu
d
ies
ab
o
u
t
t
h
e
w
in
d
in
g
ar
r
a
n
g
e
m
e
n
t
o
f
s
m
al
l
s
ize
h
o
llo
w
r
o
to
r
B
L
D
C
m
o
to
r
.
Ho
llo
w
r
o
to
r
to
p
o
lo
g
y
co
u
ld
m
a
x
i
m
ize
t
h
e
co
n
tr
i
b
u
tio
n
o
f
f
l
u
x
f
r
o
m
p
er
m
a
n
e
n
t
m
a
g
n
et
a
n
d
eli
m
i
n
ate
u
n
u
s
ed
f
lu
x
w
h
ich
li
m
it
th
e
p
er
f
o
r
m
a
n
ce
o
f
s
tan
d
ar
d
s
p
o
k
e
t
y
p
e
B
L
D
C
m
o
to
r
[
2
3
]
-
[
2
4
]
.
A
s
co
n
cl
u
s
i
o
n
,
th
i
s
r
esear
ch
s
h
o
w
s
th
e
f
u
n
d
a
m
en
tal
o
f
w
i
n
d
i
n
g
ar
r
an
g
e
m
e
n
t
o
f
f
r
ac
tio
n
al
s
lo
t o
f
m
o
to
r
esp
ec
iall
y
8
p
o
le
m
o
to
r
.
2.
B
ASI
C
S
T
RUC
T
UR
E
T
h
e
b
asic
s
tr
u
ct
u
r
e
o
f
co
n
v
e
n
tio
n
al
B
L
D
C
m
o
to
r
is
s
h
o
wn
i
n
Fi
g
u
r
e
1
(
a)
.
R
o
to
r
is
c
o
v
er
ed
b
y
s
ilico
n
s
teel
m
a
ter
ial,
it
w
ill
in
f
l
u
en
ce
f
lu
x
o
f
p
er
m
a
n
en
t
m
a
g
n
et
to
p
as
s
t
h
r
o
u
g
h
th
e
ar
ea
b
elo
w
t
h
e
f
er
r
o
m
ag
n
etic
m
ater
ial.
A
s
a
r
esu
lt,
t
h
er
e
is
m
o
r
e
leak
a
g
e
f
l
u
x
cir
cli
n
g
at
th
e
en
d
o
f
t
h
e
p
er
m
an
e
n
t
m
ag
n
et
a
s
s
h
o
w
n
in
F
ig
u
r
e
1
(
c)
.
T
o
r
e
d
u
ce
leak
a
g
e
at
th
e
e
n
d
o
f
p
er
m
an
e
n
t
m
ag
n
et,
ar
ea
b
elo
w
r
o
to
r
is
ch
an
g
ed
to
h
o
llo
w
r
o
to
r
as
s
h
o
w
n
i
n
Fi
g
u
r
e
1
(
b
)
.
T
h
e
ar
r
an
g
e
m
e
n
t
o
f
m
a
g
n
et
i
n
a
h
o
llo
w
r
o
to
r
is
d
if
f
er
e
n
t
w
ith
o
th
er
B
L
DC
m
o
to
r
w
h
er
e
m
a
g
n
et
i
s
ar
r
an
g
ed
to
m
ax
i
m
a
ll
y
r
ed
u
ce
leak
a
g
e
f
lu
x
.
Ho
llo
w
w
h
ic
h
co
n
s
is
t
s
o
f
a
n
air
,
h
as
h
ig
h
er
r
elu
cta
n
ce
,
th
u
s
ch
an
n
el
in
g
all
f
l
u
x
to
th
e
n
ea
r
es
t
f
er
r
o
m
ag
n
etic
m
ater
ial.
I
n
a
h
o
llo
w
r
o
to
r
s
p
o
k
e
t
y
p
e
B
L
D
C
m
o
to
r
,
all
f
l
u
x
w
il
l g
o
ar
o
u
n
d
s
tato
r
w
h
er
e
it
w
il
l
m
a
x
i
m
ize
t
h
e
u
s
a
g
e
o
f
f
l
u
x
i
n
t
h
e
m
o
to
r
.
Fi
g
u
r
e
1
(
d
)
s
h
o
w
s
g
e
n
er
ated
f
l
u
x
f
o
r
h
o
llo
w
-
r
o
to
r
B
L
D
C
m
o
to
r
.
Ho
llo
w
w
h
ic
h
co
n
s
i
s
ts
o
f
an
air
,
h
as
h
i
g
h
er
r
elu
ctan
ce
,
t
h
u
s
c
h
a
n
n
eli
n
g
all
f
l
u
x
to
t
h
e
n
e
ar
est
f
er
r
o
m
ag
n
etic
m
ater
ial.
I
n
a
h
o
llo
w
r
o
to
r
s
p
o
k
e
t
y
p
e
B
L
D
C
m
o
to
r
,
all
f
lu
x
w
il
l g
o
ar
o
u
n
d
s
tato
r
w
h
er
e
it
w
ill
m
a
x
i
m
ize
t
h
e
u
s
ag
e
o
f
f
l
u
x
in
t
h
e
m
o
to
r
.
T
ab
le
1
s
h
o
w
s
b
asic
s
tr
u
ct
u
r
e
co
n
f
i
g
u
r
atio
n
f
o
r
all
co
m
b
i
n
atio
n
a
n
d
m
a
g
n
etic
f
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Evaluation Warning : The document was created with Spire.PDF for Python.
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P
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
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N
:
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8
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I
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w
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Vo
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et
h
o
d
o
lo
g
y
i
s
s
h
o
w
n
i
n
Fi
g
u
r
e
6
(
a)
.
Firstl
y
,
f
o
u
r
co
m
b
i
n
atio
n
o
f
s
lo
t
a
n
d
p
o
le
is
s
elec
ted
w
h
ic
h
ar
e
6
s
lo
t 8
p
o
le,
9
s
lo
t
8
p
o
le,
1
2
s
lo
t 8
p
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le
an
d
1
5
s
lo
t 8
p
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le.
A
ll
th
e
p
ar
a
m
eter
f
o
r
d
esig
n
i
n
ter
m
o
f
r
o
to
r
in
n
er
d
ia
m
eter
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r
1,
r
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ter
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r
2
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tato
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n
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m
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3
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r
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ter
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tato
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h
eig
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t,
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tato
r
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id
th
h
ei
g
h
t,
s
2
,
air
g
ap
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g
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n
d
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m
an
e
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t
m
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g
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et
v
o
lu
m
e
is
f
i
x
ed
.
On
l
y
w
i
n
d
i
n
g
ar
r
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g
e
m
en
t
o
f
th
e
m
o
to
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is
d
if
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er
en
t.
T
h
e
d
esig
n
ca
r
r
ied
o
u
t
b
y
u
s
in
g
co
m
p
u
ter
aid
ed
s
o
f
t
w
ar
e
(
C
AD)
s
o
f
t
w
ar
e.
C
o
il
v
ec
to
r
an
d
w
i
n
d
in
g
ar
r
an
g
e
m
e
n
t o
f
ea
c
h
co
m
b
in
atio
n
i
s
p
r
o
p
er
ly
d
es
ig
n
ed
.
An
al
y
s
i
s
p
ar
a
m
ete
r
f
o
r
all
d
esig
n
i
n
t
er
m
o
f
b
ac
k
e
m
f
,
s
tato
r
f
l
u
x
d
en
s
i
t
y
,
r
o
to
r
f
l
u
x
d
en
s
it
y
,
s
tatic
to
r
q
u
e
a
n
d
tr
an
s
ie
n
t
to
r
q
u
e
is
s
i
m
u
lated
b
y
u
s
i
n
g
FEM
an
a
l
y
s
i
s
.
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r
i
n
g
b
ac
k
e
m
f
a
n
al
y
s
i
s
,
d
ia
m
eter
o
f
co
il
is
v
ar
ied
f
r
o
m
0
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4
m
m
to
1
.
0
m
m
.
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n
e
d
esi
g
n
f
r
o
m
all
f
o
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r
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m
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i
n
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n
w
ill
b
e
ch
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o
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en
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n
d
f
ab
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icate
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ased
o
n
t
h
e
b
est
m
o
to
r
p
er
f
o
r
m
a
n
ce
.
(
a)
Gen
er
al
m
et
h
o
d
o
lo
g
y
(
b
)
Flo
w
c
h
ar
t FE
M
m
o
d
ell
in
g
Fig
u
r
e
6
.
R
esear
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m
et
h
o
d
o
lo
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h
e
Fin
ite
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le
m
e
n
t
Me
t
h
o
d
(
FEM
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s
tar
ts
w
i
th
th
e
d
e
v
elo
p
in
g
o
f
t
h
e
s
tr
u
ct
u
r
e
m
o
d
elli
n
g
o
f
t
h
e
elec
tr
ic
m
ac
h
i
n
e
as
s
h
o
w
n
i
n
Fig
u
r
e
6
(
b
)
.
Fo
r
s
tr
u
ctu
r
e
m
o
d
ellin
g
,
u
s
er
is
r
eq
u
ir
ed
to
s
k
e
tch
th
e
g
eo
m
etr
y
in
(
C
A
D)
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d
i
m
p
o
r
ts
th
e
g
eo
m
etr
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f
i
les
i
n
t
h
e
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s
o
f
t
w
ar
e.
Me
s
h
i
n
g
ca
lcu
la
tio
n
f
o
r
th
e
m
o
d
el
w
i
ll
b
e
ca
r
r
ied
o
u
t b
ef
o
r
e
ele
m
e
n
t c
al
cu
latio
n
to
o
k
p
lace
.
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t r
eq
u
ir
es
ti
m
e
to
d
e
v
elo
p
th
e
m
o
d
el
d
e
p
en
d
s
o
n
th
e
m
o
d
e
l
s
tr
u
ct
u
r
e.
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h
en
m
es
h
d
ev
elo
p
m
e
n
t
i
s
co
m
p
leted
,
s
y
s
te
m
w
il
l
s
tar
t
ele
m
e
n
t
ca
lc
u
latio
n
.
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t
th
is
p
o
in
t,
all
th
e
ca
lcu
latio
n
f
o
r
FEM
w
ill
b
e
co
n
d
u
cted
.
Af
ter
th
at,
d
ec
lar
atio
n
o
f
m
ater
ial
an
d
co
n
f
i
g
u
r
ati
o
n
w
il
l
b
e
ca
r
r
ied
o
u
t.
Du
r
in
g
th
is
s
ta
g
e,
s
etu
p
f
o
r
m
ater
ial
an
d
o
th
er
co
n
f
i
g
u
r
atio
n
s
u
ch
as
s
i
m
u
latio
n
ti
m
e,
air
g
ap
s
ettin
g
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m
o
tio
n
s
et
u
p
an
d
b
o
u
n
d
ar
ies
w
ill
b
e
s
elec
ted
.
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g
n
etic
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al
y
s
is
w
i
ll
b
e
s
i
m
u
lated
a
n
d
r
esu
lt
f
o
r
ea
ch
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al
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s
is
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ill b
e
r
ec
o
r
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ed
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h
er
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ar
e
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o
m
e
p
ar
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m
eter
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w
il
l c
h
a
n
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d
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r
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5
.
I
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ST
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R
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F
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u
r
e
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s
h
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th
e
s
i
m
u
latio
n
r
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u
lt
u
s
in
g
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n
al
y
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f
o
r
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ac
k
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f
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m
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m
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u
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