Discussion Forum
 • Materials • Design Center • Processes • Units & Constants • Formulas • Mathematics
 Home Membership Magazines Forum Search Member Calculators
 Materials Design Processes Units Formulas Math
List Recent Topics | Start a New Topic

 << Previous Message No. 21308 Next >>
 Author: deajohn5556 Time: 01/13/11 06:44 PST This is a reply to message no. 21303 by blb350 Reply | Original Message | New Topic | List Topics | List Messages on This Topic
 Current Topic:natural frequency For a single degree of freedom, frequency is 3.13/sqrt deflection as you stated.  That would be for example a cantilever beam with end mass only and no mass distributed weight ( that is, massless beam).  In your case it is a  multiple degree of freedom system with many modes, because you can think of the beam with an infinite number of masses all at different distances from the end.  The first mode in this case is 3.89/sqrt deflection (NOTE I SAID 3.48/sqrt deflection befiore, sorry, use 3.89).  The second mode is 24,.75/sqrt deflection, etc.
 [ List Replies to This Message Only ]