Page 622 - index

Ɍɚɪɬɭ ɤԛɲɿɧɟɧ ɬɭɵɧɞɚɣɬɵɧ ɫɨɡɵɥɭ ɤɟɪɧɟɭɿ:

V Pɬ .
Sd2

4

Ȼԝɪɚɥɭ ɦɨɦɟɧɬɿɧɟɧ (Ɍ ɪ ) ɬɭɵɧɞɚɣɬɵɧ ɤɟɪɧɟɭ:

W Tp 0,5 ˜ Pɦ ˜ d ˜ tgE U c . (17)
WU
0,2 ˜ d p 2

Ɍɚɪɬɭ ɤԛɲɿɧɿԙ ɠɟɬɤɿɥɿɤɬɿ ɲɚɦɚɫɵ:

Ɋɬ F ˜V ɦ ,

ɫɨԙԑɵ ԧɪɧɟɤɬɟɝɿ: F – ɛԧɥɲɟɤɬɟɪɞɿԙ ɛɿɪ ɛɨɥɬԕɚ ɫԥɣɤɟɫ ɠɚɩɫɚɪɵɧɵԙ ɚɭɞɚɧɵ,

V ɦ – ɝɟɪɦɟɬɢɤɚɥɵԕ ɲɚɪɬɬɚɧ ɚɥɵɧɚɬɵɧ, ɛԧɥɲɟɤɬɟɪɞɿԙ ɠɚɩɫɚɪɵɧɞɚԑɵ

ɦɵɠɵɥɭ ɤɟɪɧɟɭɿ.
Ȼɨɥɬɬɵԙ ɛɟɪɿɤɬɿɝɿ ɷɤɜɢɜɚɥɟɧɬ ɤɟɪɧɟɭ ɚɪԕɵɥɵ ɚɧɵԕɬɚɥɚɞɵ:

V ɷɤ V 2 4W 2 d >V @. (18)

ȿɫɟɩɬɟɭɥɟɪɞɿԙ ɤԧɪɫɟɬɭɿ ɛɨɣɵɧɲɚ ɦɟɬɪɥɿɤ ɨɣɵԕɬɚɪ ԛɲɿɧ:

V ɷɤ | 1,3V .

Ʉɟɥɬɿɪɿɥɝɟɧ ԕɚɬɵɧɚɫ, ɛɨɥɬɬɵԙ ɛɟɪɿɤɬɿɝɿɧ ɠɟԙɿɥɞɟɬɿɥɝɟɧ ɮɨɪɦɭɥɚ ɛɨɣɵɧɲɚ
ɟɫɟɩɬɟɭɝɟ ɦԛɦɤɿɧɞɿɤ ɛɟɪɟɞɿ:

V ɷɤ 1,3Ɋɬ . (19)

S d 2
U

4

5.3. ȻΡɪɚɧɞɚɦɚɦɟɧ ɛɟɤɿɬɿɥɝɟɧ ɛΫɥɲɟɤɬɟɪɞɿ ɟɫɟɩɬɟɭ. Ȼԧɥɲɟɤɬɟɪɞɿԙ
ɠɚɩɫɚɪɥɚɪɵɧɞɚ ɵɫɵɪɵɥɭɞɵΝ ɛɨɥɦɚɭɵ – ɛɿɪɿɤɬɿɪɿɥɭɞɿԙ (ɛԧɥɲɟɤɬɟɪɞɿ ɛɿɪ-
ɛɿɪɿɧɟ ԕɨɫɭɞɵԙ) ɫɟɧɿɦɞɿɥɿɝɿɧɿԙ ɧɟɝɿɡɝɿ ɲɚɪɬɵ ɛɨɥɵɩ ɬɚɛɵɥɚɞɵ.

20-ɫɭɪɟɬ
Ȼԧɥɲɟɤɬɟɪɞɿ ɛԝɪɚɧɞɚɦɚɦɟɧ ɛɿɪɿɤɬɿɪɭɞɿԙ ɟɤɿ ɬԛɪɿ ɛɨɥɚɞɵ.

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