Q. Regarding the consideration of RPM value to validate assembly. -- CFD Online Discussion Forums

October 14, 2020, 01:33	Q. Regarding the consideration of RPM value to validate assembly.	#1
SaiPrasad Chowdavaram New Member SaiPrasad Join Date: Dec 2017 Posts: 17 Rep Power: 8	Consider there is an exhaust assembly consists of motor and blower. Motor rpm is 3000 and blower rpm is 2500. I am performing modal analysis to check the characterstics of vibrations based on natural frequencies. In this particular problem, which rpm has to be considered such that based on that I need to improve the natural frequencies away from operating frequency to safeguard the assembly from failure. If I consider blower operating frequency and try to improve, somewhere the coincidence of motor operating frequency happens . Which rpm has to be considered in this problem . Please let me know ur comments on this case . Thanku & regards SaiPrasad Chowdavaram

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