| 1 - STAN OBCIĄŻENIA |
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Obliczamy |
Q - ciężar koła |
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Q=m*9,81 |
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m = |
3,5 |
kg |
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Q= |
34,335 |
N |
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Obliczamy |
Reakcje |
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Ra = |
27,777 |
N |
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Rb = |
6,558 |
N |
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Obliczamy |
Moment gnący w przekroju niebezpiecznym |
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czyli Mg - wpisujemy do tabelki poniżej |
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Obliczamy |
Moment skręcający |
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czyli Ms - wpisujemy do tabelki poniżej |
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od tej kreski jest liczenie |
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Wpisujemy dane do tabeli |
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dane |
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dane stali |
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d |
60 |
mm |
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Rm |
650 |
Res |
260 |
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D |
65 |
mm |
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Rer |
420 |
Zro |
210 |
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Ms = Msm |
120,178 |
Nm |
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Reg |
500 |
Zso |
170 |
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Mg |
2,053 |
Nm |
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Zgo |
280 |
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η k |
0,78 |
dane dla stali |
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α k |
1 |
dane |
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ki |
1,2 |
założone z góry |
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pk |
1,5 |
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δo |
3 |
docelowa liczba bezpieczeństwa |
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pi |
3,141592654 |
stała |
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Msmax |
144,2136 |
Nm |
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Msa |
24,0356 |
Nm |
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| 2 - STAN NAPRĘŻEŃ |
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Wx |
21600 |
mm^3 |
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Tm |
2,78189814814815 |
MPa |
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Wo |
43200 |
mm^3 |
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Ta |
0,556379629629629 |
MPa |
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σmax |
0,095046296296296 |
MPa |
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σa |
0,095046296296296 |
MPa |
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σmini |
-0,095046296296296 |
MPa |
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σm |
0 |
MPa |
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| 3 - LICZBY DZIAŁANIA KARBU |
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wspóczynnik stanu powieszchni |
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βp |
1,05 |
dla Rm 650 Mpa |
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βps |
1,03 |
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p min |
0,57 |
mm |
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p k |
1,5 |
mm |
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p |
1,5 |
mm |
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współczynnik kształtu |
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D/d = R/r |
1,08333333333333 |
mm |
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p/r |
0,05 |
mm |
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α k |
1 |
założone |
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α kg |
2,2 |
z wykresu |
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<< wpisać |
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α ks |
1,9 |
z wykresu |
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<< wpisać |
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η k |
0,78 |
dane dla stali |
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liczba działania karbu |
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βkg (zginanie) |
1,936 |
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βg |
1,986 |
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βks (skręcanie) |
1,702 |
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βs |
1,732 |
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| 4 - WPŁYW WIELKOŚCI ELEMENTU |
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wspóczyniki wielkości elementu |
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γk |
1,1 |
z wykresu |
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<< wpisać |
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γkg |
1,48 |
z wykresu |
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<< wpisać |
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γks |
1,45 |
z wykresu |
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<< wpisać |
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| 5 - NAPRĘŻENIA KRYTERIALNE |
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naprężenia styczne |
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T |
3,54542377213651 |
MPa |
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naprężenia normalne |
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δ |
0,227753311347061 |
MPa |
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| 6 - CZĄSTKOWE (umowne, zastępcze) LICZBY BEZPIECZEŃSTWA |
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δgz |
2195,35776249627 |
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δsz |
73,3339698468037 |
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| 7 - LICZBY BEZPIECZEŃSTWA DLA OBCIĄŻEŃ ZMIENNYCH |
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δz |
73,2930897686196 |
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δz |
>= |
δo |
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73,2930897686196 |
>= |
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