Question
Download Solution PDFयदि दोलन की प्राकृतिक आवृत्ति ωn = 13 rad/sec और अवमंदन अनुपात ξ 0.8 है तो शिखर काल का पता लगाएं।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFअवधारणा:
काल-क्षेत्र विनिर्देश (या) क्षणिक प्रतिक्रिया परिमाप:
शिखर काल (tp): यह अधिकतम मान तक पहुंचने के लिए प्रतिक्रिया द्वारा लिया गया समय है।
\({\left. {\frac{{dc\left( t \right)}}{{dt}}} \right|_{t = {t_p}}} = 0,{\text{}}{t_p} = \frac{\pi }{{{ω _d}}}\)
\(As \ \omega_d=\omega_n\sqrt{ 1-\xi^2}\)
\(=\frac{\pi }{{{ω _n}√ {1 - {\zeta ^2}} }}\)
जहाँ,
ξ = अवमंदन अनुपात
ωn = प्राकृतिक आवृत्ति
ωd = अवमन्दित आवृत्ति
गणना:
दिया हुआ है कि:
ωn = 13 rad/sec
ξ = 0.8
\(\omega_d=13\sqrt{ 1-0.8^2}\)
ωd = 7.8 rad/sec
\(t_p=\frac{\pi}{7.8}=0.4 \;sec\)
इसलिए विकल्प (4) सही उत्तर है।
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