Page 605 - index

2) ɞɟɮɨɪɦɚɰɢɹɥɚɪ ɫɟɪɩɿɦɞɿɥɿɤ ɲɟɝɿɧɟɧ ɠɨԑɚɪɵ, ɹԑɧɢ ɩɥɚɫɬɢɤɚɥɵԕ
ɞɟɮɨɪɦɚɰɢɹ ɩɚɣɞɚ ɛɨɥɚɞɵ.

ɒɟɲɿɦɿ:
1) ɞɟɮɨɪɦɚɰɢɹɥɚɪ ɫɟɪɩɿɦɞɿɥɿɤ ɲɟɝɿɧɟɧ ɚɫɩɚԑɚɧ ɤɟɡɞɟ.
ȱɲɤɿ ɤԛɲɬɟɪɞɿ ɬɚɛɭ ԛɲɿɧ ԕɢɦɚɥɚɪ ɬԥɫɿɥɿɧ ԕɨɥɞɚɧɵɩ, ɋ ɬԛɣɿɧɿɧ ɛԧɥɿɩ
ɚɥɚɦɵɡ ɞɚ, ɨɫɵ ɬԛɣɿɧɧɿԙ ɫɬɚɬɢɤɚɥɵԕ ɬɟɩɟ-ɬɟԙɞɿɝɿɧ ԕɚɪɚɫɬɵɪɚɦɵɡ (24 Ω-
ɫɭɪɟɬ). Ȼԝɞɚɧ:

N1 N3 , 2N1 ˜ cosD N 2 P. (64)

Ԕԝɪɵɥԑɚɧ ɬɟԙɞɟɭɥɟɪ ɿɲɤɿ ɤԛɲɬɟɪɞɿ ɬɚɛɭԑɚ ɠɟɬɤɿɥɿɤɫɿɡ, ɞɟɦɟɤ, ɛԝɥ ɟɫɟɩ
ɫɬɚɬɢɤɚɥɵԕ ɚɧɵԕɬɚɥɦɚɣɬɵɧ ɟɫɟɩ. Ԕɨɫɵɦɲɚ ɬɟԙɞɟɭɞɿ ɫɵɪɵԕɬɚɪɞɵԙ
ɞɟɮɨɪɦɚɰɢɹɥɚɪɵɧ (24 ɛ-ɫɭɪɟɬ) ɫɚɥɵɫɬɵɪɭ ɚɪԕɵɥɵ ԕԝɪɚɦɵɡ.
ɋɵɪɵԕɬɚɪɞɵԙ ɞɟɮɨɪɦɚɰɢɹɥɚɪɵ ɫɟɪɩɿɦɞɿɥɿɤ ɲɟɝɿɧɞɟ ɛɨɥԑɚɧɞɵԕɬɚɧ, D

ɛԝɪɵɲɵɧɵԙ ԧɡɝɟɪɭɿɧ ɟɫɟɩɬɟɦɟɭɝɟ ɛɨɥɚɞɵ, ɫɨɧɞɵԕɬɚɧ ɋȼɋ1 ԛɲɛԝɪɵɲɵɧɚɧ:

'l1 'l2 ˜ cosD. (65)

Ɉɫɵ ԕɨɫɵɦɲɚ ɬɟԙɞɟɭɞɿ ɿɲɤɿ ɤԛɲɬɟɪ ɚɪԕɵɥɵ ԧɪɧɟɤɬɟɝɟɧɧɟɧ ɤɟɣɿɧ ԛɲ
ɬɟԙɞɟɭɞɿ (64 ɠԥɧɟ 65) ԧɡɚɪɚ ɲɟɲɿɩ, ɿɲɤɿ ɤԛɲɬɟɪɞɿ ɬɚɛɚɦɵɡ. Ɉɥɚɪ:

N1 N3 P ˜ cos2 D , N2 1 P D . (66)
1 2 ˜ cos3 D 2 ˜ cos3
24 ɛ-ɫɭɪɟɬɬɟɧ ɤԧɪɿɧɿɩ ɬԝɪԑɚɧɞɚɣ, ɋ ɬԛɣɿɧɿɧɿԙ ɨɪɵɧ ɚɭɵɫɬɵɪɭɵ ɟɤɿɧɲɿ
ɫɵɪɵԕɬɵԙ ԝɡɚɪɭɵɧɚ ɬɟԙ, ɹԑɧɢ:

G 'l2 N2l (1 2 ˜ P˜ l D ) ˜ EA . (67)
E˜A cos
3

2) ɩɥɚɫɬɢɤɚɥɵԕ ɞɟɮɨɪɦɚɰɢɹ ɩɚɣɞɚ ɛɨɥԑɚɧ ɤɟɡɞɟ.
Ԥɫɟɪ ɟɬɭɲɿ Ɋ ɤԛɲɿɧ ɛɿɪɬɿɧɞɟɩ ԧɫɿɪɟ ɛɚɫɬɚɣɦɵɡ. ȿɤɿɧɲɿ ɫɵɪɵԕɬɵԙ
ԕɢɦɚɫɵɧɞɚԑɵ ɿɲɤɿ ɤԛɲ ɟԙ ԛɥɤɟɧ ɛɨɥԑɚɧɞɵԕɬɚɧ, ɨɧɵԙ ɞɟɮɨɪɦɚɰɢɹɫɵ

ɩɥɚɫɬɢɤɚɥɵԕ ɤԛɣɝɟ ɚɥɞɵɦɟɧ ɠɟɬɟɞɿ. Ȼԝɥ ɤԛɣ (ɩɥɚɫɬɢɤɚɥɵԕ ɤԛɣ) N2 V ǖ ǩ ˜ Ⱥ

ɛɨɥԑɚɧ ɤɟɡɞɟ ɨɪɵɧ ɚɥɚɞɵ ɧɟɦɟɫɟ P V ǖ ǩ ˜ A ˜ (1 2 cos3 D ) .

Ȼԝɞɚɧ ԥɪɿ ɨɪɬɚɞɚԑɵ (ɟɤɿɧɲɿ) ɫɵɪɵԕɬɵԙ ɤɟɪɧɟɭɿ (V ǖ ǩ ) ɞɟ ɿɲɤɿ ɤԛɲɿ

(V ɚ ˜ Ⱥ ) ɞɟ ɬԝɪɚԕɬɵ ɛɨɥɵɩ ԕɚɥɚɞɵ, ɬɟɤ ɟɤɿ ɲɟɬɤɿ ɫɵɪɵԕɬɚɪɞɵԙ ɿɲɤɿ ɤԛɲɬɟɪɿ

ԑɚɧɚ ԧɡɝɟɪɟɞɿ, ɞɟɦɟɤ ɫɬɚɬɢɤɚɥɵԕ ɚɧɵԕɬɚɥɦɚɣɬɵɧ ɠԛɣɟ – ɫɬɚɬɢɤɚɥɵԕ
ɚɧɵԕɬɚɥɚɬɵɧ ɠԛɣɟɝɟ ɚɣɧɚɥɚɞɵ. Ɉɥɚɪɞɵ ɬɚɛɭ ԛɲɿɧ ɬɚԑɵ ɞɚ ԕɢɦɚɥɚɪ ɬԥɫɿɥɿɧ
ԕɨɥɞɚɧɚɦɵɡ, ɹԑɧɢ ɋ ɬԛɣɿɧɿɧ ԕɢɵɩ ɚɥɵɩ, ɨɧɵԙ ɫɬɚɬɢɤɚɥɵԕ ɬɟɩɟ-ɬɟԙɞɿɝɿɧ
ԕɚɪɚɫɬɵɪɚɦɵɡ (25 ɚ-ɫɭɪɟɬ). Ȼԝɥ ɬɟɩɟ-ɬɟԙɞɿɤɬɟɧ:

N1 P V ǖ ǩ˜A . (68)
2 cosD
Ɉɪɵɧ ɚɭɵɫɬɵɪɭ 25 Ω-ɫɭɪɟɬɬɟɧ ɬɚɛɵɥɚɞɵ:

Gɫ N1 ˜ l (P V ǖ ǩ ˜ A) ˜ l . (69)
EA ˜ cos2 D 2ȿȺ ˜ ɫos3D

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