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Title: PowerPoint Presentation Last modified by: Farit Created Date: 1/1/1601 12:00:00 AM Document presentation format: Other titles: Arial Times New Roman ... – PowerPoint PPT presentation
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1
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3
1. ??????????? ??????? ???????
- ??????????, ??????????? ??????? ????????,
????? ???? ???????? ???????? ?? ??????, ? ? ???
????????? ??????? ???????. - ??? ??????????? ??????? ??????? ????????????
??????? ???????????? ?? ?????? ?????? ???? ?????
?????????? ?? ??????, ??????? ?? ?????????. - ????? ????? ?? ????????? ?????????? ?????
?????????? ???????? ??????? ???????. - ????????? ?????????? ??????? ??????? ??????? ?
???? ?????? - 1)Â ?X 0, ?Y 0, ?MA 0
- (?X ? ?Y ????? ???????? ??? ??
???????-?????????????? ??? x ? y, ?MA ?????
???????? ???? ??? ???????????? ????? ????? A) - 2)Â ?X 0, ?MA 0, ?MB 0
- (????? A ? B ?? ?????? ?????? ?? ?????
?????????????? ? ??? x) - 3)Â ?MA 0, ?MB 0, ?MC 0
- (????? ?, ?, ? ?? ?????? ?????? ?? ????? ??????).
4
2. ?????????? ?????? ?????????? ???????
? ????????? ??????? ?????????? ???????
????????? ??? ?????????? ??????
N - ?????????? ????, Q - ?????????? ????, M -
?????????? ??????.
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? ???????????? ???????? ???????????? ?????????
??????? ?????? ?????????? ??????
1) ????? M ???????????? ?? ???????
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??????????????? 2) ?????????? ????
????????????, ???? ??????? ??????? ?? ???????
???????, ? ????????????, ???? ??????? ???????
?????? ??????? ??????? 3) ?????????? ????
????????????, ???? ??????????? ???????, ?
????????????, ???? ??????? ???.
5
????? Q ? Q ?????????? ????????????????
??????????? (??????? ??????????)
??? ??????????? ????? Q ?? M ???
????? M ????? ????????? ?? ?????????? ? ??
???????????. ???? ??????? ????? ?? ???????
???????, Q ??????? ?? ?????? , ? ???? ??????
??????? ???????, ?? ?? ?????? . ?????
?????????? ??? Q ? ?????????? ??? N ?????
?????????? ?? ????? ??????? ?? ??? ??????? ??
?????? ??????. ?? ????? ??????????? ??????? M
????? ??????????? ?????????? ?? ???????
??????????? ???????.
6
3. ?????? ??????????? ?????????? ??????
?????????? ?????? ???????????? ????????
??????? ???????, ?????????? ???????, ?????????
???? ? ?????? ??????. 3.1. ????? ???????
??????? ???? ????? ????????? ?????????????
?????????? ?????? ??? ??????? ???? ? ??????????
??? ?? ????????? ??????? (??????????)
???????? ?????? ??????? ??????? 1)
???????? ??????? ?? ??????? 2) ??????? ??????? ?
???????? ?????????? ??????? 3) ??????? ????
(???????? ???????) ?????????? ????? 4) ?????????
??? ????????? ?????????? 5) ?? ??? ??????????
?????????? ?????? M, Q, N 6) ??? ??????? ???????
????????? ????? M, Q, N 7) ????????? ?????? 2-6
??? ????????? ????????.
7
3.2. ????? ?????????? ??????? ???????????? ???
??????? ????????????? ??????. ????????, ???
??????? ???????????? ???? ?????????? ??? ???????
I, II, III. ???????? ??? ??????? ????? ?? ???
????????? ??????????, ?? 9 ????????? ????????????
?????? ??????????? ??????? ??????? ??????? R1,
R2, H ? ??????????? ??????? X1, X2, X3, Y1, Y2,
Y3.
???????? ?????? ?????????? ??????? 1)
??????????? ????????? ????????? ??????? ?? ?????
(?????) 2) ?????????? ??????? ? ???????????
??????? 3) ??? ??????? ????? ???????? ?????????
?????????? 4) ?????? ??????? ??????????
????????? ? ?????????? ??????? 5)Â ?????? ????
?????????? ???????? ? ????????? ????? 6)
?????????? ??? ????? ? ????? ????? M, Q, N.
8
3.3. ????? ????????? ????
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????? ??? ????? ???????????? ???????? ????,
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???? ????????? ???????????? ??????? ??????.
?????????? ??????
????? ??????????? ??????? ??????? ??????????
???? ? ? ???????????? ????????? ?????????? ?X
N2 cos45 N1 cos45 0, ?Y N1sin45 N2sin45
P/2 0. ?? ??? ???????????? ???????
?????????? ????
9
3.4. ????? ?????? ??????
???????????? ??? ??????? ??????? ??????????
??????????? ??????, ??????? ?????? ??????????
??????? ?????????. ??? ???????? ???????
??????? ???????????? ? ????? ??????? ?????
???????????? ????? ????? ? ?????? ????? ??
??????? ??????????????? ???????? ? ??????????
?????? ???????????? ?????? ? ??????????????
????? ????? ??????? ?????????????? ??????????
?????????. ????????, ??? ??????? ?????????
???? ? ???????? ??????? ?? ?????? ??????
???????????? ???????? ? ?????? ????? ? ?????
??????. ????? ?????? ??????? ??????? ???????? ?,
? ??????? ????? ?????? ???????. ????????? ??????
? ????????? ????? ????? X, ??????? ????????
??????? ??
10
??????? ??????????????? ???????? (??) ?
???????? (??) ?????? MC0. ?? ????????
???????????? ????? MCMC,X MC,P 0. ??????
?????????? ??? ????????? ???????? ??????? 1)
????????? ????????? (??) - ?????????????? ????
X1 2) ???????? ????????? (??) - ??????????????
????????
- ?????????? ????????? ?????? ???
- X MC,P 0,
- ??? 1? a a ?????? ? ????? ? ?
????????? ?????????, - MC,Pqa2/2 ?????? ? ????? ? ?
???????? ?????????. - ????? ??????????? ?????? ?????
- X MC,P / qa/2.
????? ????? ????? ??????? ? ??????? ?????
??????? ???????
11
- ? ????? ??????? ??????? ??????????????
????????? ?????? ? ???????????? ??????? ??
??????? ??????????????? - s11 X1 s12 X2? s1n Xn S1P0,
- s21 X1 s22 X2? s2n Xn S2P0, . . . .
. . . . . . . . . . . . . - sn1 X1 sn2 X2? snn Xn SnP0.
- ????? 1, 2, ?, n ?????????? ????? X1, X2, ?,
Xn ??????????? ?????????? ?????? ? ???? ??????.
- ?? ???? ??????? ????????? ????????????
??????????? ????. - ????? ?????. ?????? ????? ??????????
??????????? ??????? ???????? ? ??????? ??????? n
???????? ????????? ? n ????????????. ????
???????????? ?????????? ??????? ????????? ???????
?? ???? (det?0), ?????????? ?????? ?????
????????? ??????????. ???? ?? ????????????
????????? ???? (det0), ?? ?????????? ??????
?????????? ??????. ? ???? ?????? - ?????? ???????
????????? ?????????.
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