x/t0 4; 1, , . . t0 - ( ), . [11].
.
cu(tf) = co0-f AcoflcosQ/. (15.66)
(
() --; i|> () = u)0t + sin Qr ; () .
(15.67) U {t) = ( f cos Qt),
, . - ,, (15.68 ) ,
(2 1 1) Q, ~ 0, 1,2,...:
(15.69)
S,, Sa,... s (t). (15.69) (15.68),
(15.66) (15.70) -, , -, Q arctg (Si /), . , .
, - , (), dtp/dr = = S(t), , 52+| ( = 0,1,2...).
(15.71)
3- - :
(15.72)
= /Q.
). 1 (15.72) 3 ()3/4. - <> -., () .
- , , - - . () : = /- - - - , AQ .
|
|
1101
Q .
- (. 15.16) . - . , . , . AM - , .
- , , ; . ! ( < 1), ()> 1). , - ! ( / . 15. () , ( > 2(), () ,; k-x &,, , nepei . , , .
, . 1 - ! ( . 15.16, 2), ■ \1 1 4- |,
2A<o<<Wto0 .
( /Q 1) , ,
, ( ) , . . , = arctg -. to (t) , . . .
- > 1.
15.6. -
- , () - . , - (. 15.4).
- -. - , /, (. 15.17) . tt (,), tx -f :
|
|
, , - (. . 15.17). , , Fmax. , > 2/. , (. 15.4, . 15.10) , , -, > 2(1 - ) Fmax.
, . / (1 ; ), .. , , .
.
(. 15.18). , () , () , . ^, ^, _. = ʄ^,
, . . - - ; = R /2L ; , , . \\ Q , . 15.19, -
. , .
(. 15.20). , (). () () (), . -.
, , - ,,.
(15.73)
7 () .
*
() -- :
us(t) = A0sm [co0t +
[.
(15.73)1 , , :
, /Cyi ; () .
(15.74) , - 1 + () , , > 2/7 - . () , , ft
|
|
*= | (/) ()|, . , , . -
:
, , -.
(. 15.21). , . () () 9 (/), -:
uT(t) =j= ( cosloV -H 9(01, (/)- = ˄ sin \ujt + 9(01 + " (0-
(0~ sin (9 (|) - 9>)|-
^sin[2too/+9(0 + '9(0l + m (t).
, ,
|9 (t) 8* (01 < . , , . -, -
(. 15.4). - .
15.7.
15.2, 15.4 AM- -, , . , , () (. 15.22). u6 mAAJ2 X xcos((o,. il)t . , 0/2, , Q. . , , <,.. : 1) 10(. (. . 15.22) - , ; 2)
- .
, : ; !
" = U cos (/ + ?)-
! ! :
(U0 > Vi) i , (15.75 iK .:
|
|
-. Ui/Uu AM - , Q{.