about damping

hi all!  i need some explanation about the term " a damper is assumed to have neither mass and elasticity , and damping force exist only if there is relative velocity between the 2 ends of dampers".

2 ends of damper ----> it dedicate to a specified terms ? or a limitation pivot ...

BR

 

Original Post

What is the document that you took these few words from? If you are trying to understand dampers including different types, modeling/calculating, testing, use for vibration control, then search for more reference papers and books. If you have a specific question about a damper on a real machine or structure, then please be more specific and provide additional information.

Walt

John,

Good find! The three book reviews indicate the $73.00 plus would not be well spent! A shock absorber/damper has a key element called an orifice for the incompressible fluid to drain out of the cavity and provides the actual damping. This was missing in the book sketch! The OP would be better served by reviewing other books and publications.

Walt

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