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103-ɫɭɪɟɬ

Ɍɟɬɪɚɷɞɪɞɵԙ ɤɨɨɪɞɢɧɚɬɚ ɠɚɡɵԕɬɵԕɬɚɪɵɧɚ ɩɚɪɚɥɥɟɥɶ ɠɚԕɬɚɪɵɧɞɚԑɵ

ɤɟɪɧɟɭɥɟɪ (ıɯ, ıɭ, ız,W xy ,W yz ,W zx ) ɛɟɥɝiɥi ɛɨɥɫɵɧ. Ȼɚɫ ɠɚɡɵԕɬɵԕɬɚԑɵ ɛɚɫ

ɤɟɪɧɟɭɞɿ N
, ɚɥ ɠɚɡɵԕɬɵԕɬɚԑɵ ɧɨɪɦɚɥɶɞɿ K ԥɪɩiɦɟɧ ɛɟɥɝiɥɟɣiɤ. Ʉɨɨɪɞɢɧɚɬ
ɨɫɶɬɟɪiɦɟɧ ɧɨɪɦɚɥɶ ɚɪɚɫɵɧɞɚԑɵ ɛԝɪɵɲɬɚɪɞɵԙ ɤɨɫɢɧɭɫɬɚɪɵ l, m ɠԥɧɟ n
ɛɨɥɫɵɧ. Ȼɚɫ ɤɟɪɧɟɭɞiԙ (ȃ*) ɤɨɨɪɞɢɧɚɬɚ ɨɫɶɬɟɪiɧɞɟɝi ԕԝɪɚɭɲɵɥɚɪɵɧ ɬɚɛɚɣɵԕ.
Ɉɧɵ ɬɚɛɭɞɵԙ ɟɤi ɠɨɥɵ ɛɚɪ.

1) Ȼɚɫ ɤɟɪɧɟɭɞɿ ɨɫɶɬɟɪɝɟ ɠɿɤɬɟɭ:

XK N
˜ " , YK N
˜ m , Z2 N
˜ n (8.8)

2) Ԧɬɤɟɧ ɩɚɪɚɝɪɚɮɬɚԑɵ ɮɨɪɦɭɥɚɥɚɪɞɵ ԕɨɥɞɚɧɭ:

XK V x ˜ " W xy ˜ m W xz ˜ n

YK W yx ˜ " V y ˜ m W yz ˜ n (8.9)

ZK W yz ˜ " W zy ˜ m V z ˜ n

(8.8) ɮɨɪɦɭɥɚɞɚԑɵ ɤɟɪɧɟɭɥɟɪɞiԙ ɦԥɧiɧ (8.9) ɮɨɪɦɭɥɚԑɚ ԕɨɣɵɩ, ɨɥɚɪɞɵ
ɬɟɧɞiɤɬiԙ ɨԙ ɠɚԑɵɧɚ ԧɬɤiɡiɩ ԝԕɫɚɫ ɦԛɲɟɥɟɪɞi ɠɢɧɚԕɬɚԑɚɧɧɚɧ ɤɟɣiɧ:
V x N * ˜ " W xy ˜ m W xy ˜ n 0 ,

W yz ˜ " V y N 4 ˜ m W yz ˜ n 0 , (8.10)

W zx ˜ " W zy ˜ m V z N
˜ n 0 .

Ȼɟɥɝiɫiɡ ɤɨɫɢɧɭɫɬɚɪ l, m ɠԥɧɟ n ԛɲɿɧ ɛipɬɟɤɬi ɫɵɡɵԕɬɵԕ ɬɟԙɞɟɭɥɟɪ
ɠԛɣɟɫiɧ ɚɥɞɵԕ. Ȼԝɥ ɠԛɣɟɧiԙ ɲɟɲiɦɞɟɪiɧiԙ ɛɨɥɚɬɵɧɞɵԑɵ ɠԥɧɟ ɨɥɚɪɞɵԙ
ɧԧɥɝɟ ɬɟԙ ɛɨɥɦɚɣɬɵɧɵ ɛɟɥɝiɥi, ԧɣɬɤɟɧi:

"2 m2 n2 1. (8.11)

Ɉɥɚɣ ɛɨɥɫɚ, ɛɟɥɝiɫiɡɞɟɪɞiԙ ɤɨɷɮɮɢɰɢɟɧɬɬɟɪiɧɟɧ ɬԝɪɚɬɵɧ ɚɧɵԕɬɚԑɵɲ
ɧԧɥɝɟ ɬɟԙ ɛɨɥɭ ɤɟɪɟɤ:

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