What is the velocity ratio for creep in the belt drive system for be σ1 being the stress in tight side, σ2 being the stress on slack side and E is the young’s modulus of elasticity of the belt material?
बेल्ट ड्राइव सिस्टम में क्रीप के लिए वेग अनुपात क्या है क्योंकि σ1 टाइट साइड में तनाव है, σ2 स्लैक साइड में तनाव है और E बेल्ट सामग्री की प्रत्यास्थता का यांग मापांक है?
Creep : In a belt drive, the portion of the belt leaving the driven and entering the driver is known as the tight side and a portion of the belt leaving the driver and entering the is known as the slack side. The uneven expansion and contraction of the belt over the pulleys (expansion on a tight side and contraction on the slack side), produces a relative motion of the belt over the pulleys this phenomenon is known as creep in a belt. Velocity ratio (when considering creep) is given by,
Where,
Stress in the belt on the
tight and slack side respectively
E = Young’s modulus for the material
of belt
Hence, the correct option is (C)
&Key Points:-
The total
effect of creep slightly reduces the speed of the driven pulley.Since the
effect of creep is very small, therefore it is generally neglected.
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