내압 및 온도조건을 고려한 Elbow부가 있는 원형배관의 진동해석

Vibration Analysis of Pipe with Elbow subject to Internal Pressure and Temperature

Vibration analysis of pipe with Elbow subject to internal pressure and temperature is studied through a commercial finite element analysis tool. The natural frequency of Elbow increased very slightly as internal pressure increases. Meanwhile, the frequency of Elbow decreased as temperature increases. It is shown that frequency deviation caused by temperature was greater than that caused by pressure. As the length of Elbows increases, frequency deviation by temperature stew rapidly, but frequency deviation by pressure was not so high. It is concluded that more concern needs to be focused on temperature rather than on pressure in terms of natural frequency.