대학기계학회 2004년도 춘계학술대회 논문집
Time(t)
Distance(L) Compression
Expansion Compression
Expansion
V
t1, L1
t2, L2
t3, L3 Tunnel length(Lt)
Inlet Outlet
Time(t)
Distance(L) dt=Lr/V
Expansion Compression Compression
Expansion
t1, L1
Tunnel length(Lt)
Inlet Outlet
t3, L3
t2, L2
Time(t)
Tunnel length(Lt)
t4=4Lt/Vp
t3=3Lt/Vp
t2=2Lt/Vp
t1=Lt/Vp
t5=5Lt/Vp
A B C D
O
T
t6=5Lt/Vp
t7=5Lt/Vp
(1) (2) (3) (4)
(5)
Time(t)
Distance(L) Cr
Er Ef Ef
Cf Cr
Cf
Er t1 t4=4Lt/Vp
t3=3Lt/Vp
t2=2Lt/Vp
t1=Lt/Vp
L1
dt=Lr/V
Tunnel length
대학기계학회 2004년도 춘계학술대회 논문집
Time(t)
Distance(L) Cr
Er
Ef Ef
Cf Cr Cf
Er
t2
t4=4Lt/Vp
t3=3Lt/Vp
t2=2Lt/Vp
t1=Lt/Vp
L2
dt=Lr/V
Tunnel length
Time(t)
Distance(L) Cr
Er
Ef Ef
Cf
Cr Cf
Er
t3
t4=4Lt/Vp
t3=3Lt/Vp
t2=2Lt/Vp
t1=Lt/Vp
L3 dt=Lr/V
Tunnel length
Time(t)
Distance(L) Er
Ef Ef Cf
Cr
Cf
Er
t4 t4=4Lt/Vp
t3=3Lt/Vp
t2=2Lt/Vp
t1=Lt/Vp
L4 dt=Lr/V
Cr Tunnel length
Tim e(t)
D istan c e(L) C r
E r
E f E f
C f
C r C f
E r
t5 t4= 4Lt/Vp
t3= 3Lt/Vp
t2= 2Lt/Vp
t1= Lt/Vp
L5 d t= L r/V
T u n ne l len g th
T im e (t)
D is ta n c e (L ) C r
E r
E f
Ef C f
C r
C f
E r
t6 t4= 4 Lt/Vp
t3= 3 Lt/Vp
t2= 2 Lt/Vp
t1= Lt/Vp
L6 d t= L r/V
T u n n e l le n g th
T im e (t)
D is ta n c e (L ) C f
E r
E f E f
C r
C f
C r E r
t7 t4= 4 Lt/Vp
t3= 3 Lt/Vp
t2= 2 Lt/Vp
t1= Lt/Vp
L7 d t= L r/ V
T u n n e l le n g th
대학기계학회 2004년도 춘계학술대회 논문집
