Sag a cikin Kungiyar Taurari: Me ke Nana? (Da Karamin Yadda ake Samu)
Mi kana Sag a Layan Tashin Kwam?
A layan tashin kwam, sag yana nufin farkon gabatar da ke cikin maimaito (kawai tashar layan tashin kwam) da kuma gabatar da ke cikin gabatar da ke cikin layan tashin kwam. Amsa na sag da kuma gagarwa a layan tashin kwam yana nuna da zama da tsari na gabatar da ke cikin layan tashin kwam.
Tsari mai girman gabatar da ke cikin maimaito (yana da tsari masu gabatar da ke cikin maimaito) ana ake kira tsari mai girman gabatar da ke cikin maimaito. Amma, idan tsari na gabatar da ke cikin maimaito suna da gabatar da ke cikin maimaito masu tsari daban-daban, wannan yana ake kira tsari mai gabatar da ke cikin maimaito masu tsari daban-daban.
Kunna layan tashin kwam AOB wanda ya danganta da gabatar da ke cikin maimaito A da B a gabatar da ke cikin maimaito (tsari mai girman gabatar da ke cikin maimaito). Tsarin gabatar da ke cikin maimaito yana parabola, kuma gabatar da ke cikin maimaito yana AOB.
A cikin gabatar da ke cikin maimaito AOB, S yana nufin sag idan an samu shi ciki.
Me kana Sag Mai Yiwuwa a Gabatar da Ke Cikin Maimaito na Layan Tashin Kwam?
Sag yana bukata a layan tashin kwam. Gabatar da ke cikin maimaito suna danganta da maimaito da babban halayen sag.
Wannan shine saboda yana muhimmanci a kan gagarwa. Idan an fadada gabatar da ke cikin maimaito a kan fitar, hali yana saurara gabatar da ke cikin maimaito, saboda haka gabatar da ke cikin maimaito yana iya kawo gudanar da kuma kawo juyin gabatar da ke cikin maimaito. Saboda haka, sag yana bukata a gabatar da ke cikin maimaito.
Abubuwan da suka fi sani:
Idan maimaito masu tsari masu gabatar da ke cikin maimaito suka danganta da gabatar da ke cikin maimaito, tsarin gabatar da ke cikin maimaito yana kasance. Sag yana da tsari mai yawa da kasa da tsari na gabatar da ke cikin maimaito.
Tsarin sag na gabatar da ke cikin maimaito yana parabola.
Gagarwa a cikin gabatar da ke cikin maimaito yana daidai a kan gabatar da ke cikin maimaito.
Duk da haka, faifin gagarwa na gabatar da ke cikin maimaito yana daidai a kan gabatar da ke cikin maimaito.
Gagarwar da ke cikin maimaito yana daidai a kan gagarwar da ke cikin maimaito.
Yadda Ake Samun Sag a Layan Tashin Kwam
Idan an samun sag a layan tashin kwam, lura da biyu da za a duba:
Idan maimaito suna da gabatar da ke cikin maimaito
Idan maimaito ba su da gabatar da ke cikin maimaito
Tushen ake samun sag yana canza saboda maimaito (yana da tashar layan tashin kwam) suka danganta da gabatar da ke cikin maimaito.
Samun sag idan maimaito suna da gabatar da ke cikin maimaito
Kunna, AOB yana gabatar da ke cikin maimaito. A da B su ne maimaito. O yana gabatar da ke cikin maimaito da kuma gabatar da ke cikin maimaito.
Yanzu, L = tsari na gabatar da ke cikin maimaito, AB
w yana tsari na gabatar da ke cikin maimaito
T yana gagarwa a gabatar da ke cikin maimaito.
An zaba baki daya a gabatar da ke cikin maimaito, P.
Distance of point P from the Lowest point O is x.
y yana tsari na gabatar da ke cikin maimaito.
Equating two moments of two forces about point O as per the figure above we get,
Sag calculation for supports are at unequal levels
Suppose AOB is the conductor that has point O as the lowest point.
L is the Span of the conductor.
h is the difference in height level between two supports.
x1 is the distance of support at the lower level point A from O.
x2 is the distance of support at the upper-level point B from O.
T is the tension of the conductor.
w is the weight per unit length of the conductor.
Now,
So, having calculated the value of x1 and x2, we can easily find out the value of sag S1 and sag S2.
The above formula is used to calculate sag when the conductor is in still air and ambient temperature is normal. Hence the weight of the conductor is its own weight.
