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STATIKA BENDA TEGAR
(Momen & Kopel)
Muh Amin, ST, MT
FT-UNIMUS
20!
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Ben"# Te$#%
Ben"# e$#% ' elemen #n$ i"#*e%u*#h *enu+
• Kopel
Kom*in#i 2 *u#h $## #n$ #m#*e#%, $#%i #i e##% #%#h #lin$
*e%l#.#n#n+ • Momen
• Ke/en"u%un$#n u#u $## unumemu#% *en"# e$#% ei#%e*u#h um*u "iuu% oleh momen
$## e%h#"#p um*u e%e*u+
S#u#n "#l#m SI #"#l#h' Nm ##uNmm
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MOMEN
Momen Ke/en"e%un$#n $##unu memu#% *en"#e%h#"#p u#u um*u+
M = F x d
F $##
" #%# #n#% $##
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Theorema Varignon
1Momen "#%i emu# $## e%h#"#p u#u ii #"#l#h #m#"en$#n uml#h momen "#%i omponen-omponen $##n#
e%h#"#p ii #n$ #m#
Momen e*u#h $## e%h#"#p ei#p um*u,#m# "en$#n uml#h momen omponen $##(F3, F), e%h#"#p um*u #n$ *e%#n$u#n'
4 Momen "ihiun$ "en$#n /#%# men$#li#n $## #%# e%h#"#p #u pu# momen+
4 G## h#%u e$# lu%u e%h#"#p um*u momen+
4 5i# i"# e$# lu%u, m## h#%u "i/#%iomponen $## e$# lu%u, *#i F3 m#upun F+
“ARTINYA“ARTINYA
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Momen Suatu Kopel
• 5uml#h M "ie*u momen "#%i opel+ M i"# e%$#nun$ p#"#pemilih#n A ehin$$# ' momen M u#u opel #"#l#h e#p*e#%n# #m# "en$#n F" "im#n# F *e#% $## "#n " #"#l#h
#%# #n#%# e "u# $#%i #in#+
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Kopel (6#nu#n)
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Penjumlahan Kopel
• Momen #n$ e%#"i i# 7 8 S R
M (7 8 S) p 7p 8 Sp R+p
• Du# opel "#p# "i$#ni "en$#n opel un$$#l #n$ momenn##m# "en$#n uml#h #l#*#% "#%i e"u# momen emul#+
•
Ke"u# $## p#"# $#%i #i #n$ #m# "#p# l#n$un$"iuml#h#n unu men/#%i momen+
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9onoh
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So#l
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Sei#n
Te%im##ih
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