Page 569 - index

P S 2 (1 4S )2 EJ . (10.18)
4" 2 (10.19)
Ⱦɚԑɞɚɪɵɫ ɤԛɲɿɧɿԙ ɚɧɵԕɬɚɦɚɫɵ ɛɨɣɵɧɲɚ, n = 0,

Pǚ S 2 EJ min .
(2")2

Ʉɟɥɟɫi ɦɵɫɚɥԑɚ 126 ɚ-ɫɭɪɟɬɬɟ ɤԧɪɫɟɬɿɥɝɟɧ ɟɫɟɩɬɿ ɚɥɵɩ ԕɚɪɚɣɵԕ.

126-ɫɭɪɟɬ

Ȼԝɥ ɟɫɟɩɬɿԙ ɛɚɫԕɚ ԕɚɪɚɥԑɚɧ ɟɫɟɩɬɟɪɝɟ ԕɚɪɚԑɚɧɞɚԑɵ ɟɪɟɤɲɟɥɿɝɿ, ɦԝɧɵԙ
ɫɟɪɩɿɦɞɿ ɫɵɡɵԑɵɧɵԙ ɟɤɿ ԕɢɫɵԕɬɚɧ – Ⱥȼ ɠԥɧɟ ȼɋ ɬԝɪɚɬɵɧɞɵԑɵ. Ԕɢɫɵԕɬɵԑɵ

ɧԧɥɝɟ ɬɟԙ ɟɤɿ ɧԛɤɬɟɧɿ (ɋ ɠԥɧɟ ȼ ɧԛɤɬɟɥɟɪɿ) ԕɨɫɚɬɵɧ ɫɵɡɵԕ ( ɋȺ/ ) Ɋ ɤԛɲɿɧɿԙ

ԥɫɟɪ ɟɬɭ ɛɚԑɵɬɵɧɚ ɩɚɪɚɥɥɟɥɶ ɛɨɥɦɚԑɚɧɞɵԕɬɚɧ, ɋ ɬɿɪɟɝɿɧɞɟ RC ɪɟɚɤɰɢɹɫɵ

ɩɚɣɞɚ ɛɨɥɚɞɵ.
Ɉɥ ɪɟɚɤɰɢɹɧɵ ԕɢɦɚɥɚɪ ɬԥɫɿɥɿɧ ԕɨɥɞɚɧɵɩ, ɚɧɵԕɬɚɣɦɵɡ. Ɉɥ ԛɲɿɧ, 126 Ω-
ɫɭɪɟɬɿɧɟɧ ɢɸ ɦɨɦɟɧɬɿɧɿԙ ԧɪɧɟɝɿɧ ɚɧɵԕɬɚɣɦɵɡ, ɹԑɧɢ M (z) RC ˜ (l z) P ˜ y .

Ȼԝɪɵɧԑɵ ɟɫɟɩɬɟɪɞɟɝɿɞɟɣ k 2 P ɞɟɩ ԕɚɛɵɥɞɚɩ, ɞɢɮɮɟɪɟɧɰɢɚɥɞɵ
EJ

ɬɟԙɞɟɭɞɿ ɲɟɲɤɟɧɧɟɧ ɤɟɣɿɧ:

y C1 ˜ Sinkz C2 ˜ Coskz Rc 2 (" z) . (10.20)
EJ ˜ k

Ɍɟԙɞɟɭɞɟɝɿ ɋ1, ɋ 2 ɠԥɧɟ Rɫ ɬɚɛɭ ԛɲɿɧ ɤɟɥɟɫɿ ɲɟɤɚɪɚɥɵԕ ɲɚɪɬɬɚɪɞɵ
ԕɨɥɞɚɧɚɦɵɡ:

1) z=0 ɛɨɥԑɚɧɞɚ, ɭ=0 ɠԥɧɟ ɭ/=0;
2) z=0 ɛɨɥԑɚɧɞɚ, ɭ=0.
Ɉɫɵ ɲɚɪɬɬɚɪԑɚ ɫԥɣɤɟɫ ԛɲ ɬɟԙɞɟɭ ɚɥɚɦɵɡ:

°­C2 RC ˜ " 0,
° EJ ˜ k 2
°®C1 2 (10.21)
° K RC 0,
˜ EJ ˜ k

°C1Sink" C2Cosk" 0.
¯°

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