Linear Machinery Vibration

[Mchel80]

Hi,

Can i ask you how does vibration behave in a linear machinery. The description of the linear machinery I am refering to is a cam wheel which runs a piston over a 1 meter stroke. My concern was I need to know the point at which there is going to be maximum vibration. I believe there will be higher vibration during startup and will become lower as we start running to full speed. The full speed being 1 hertz. Please let me know if you want more information.

 

[MikeHalloran]

A face cam to do that directly would be ~2.1m diameter, but could include a counterbalance, like a steam locomotive's driver wheel, so the vibration is not necessarily a problem. You have to analyze the whole machine.

Or, you could do it with timers and valves and such, or with a small computer (maybe a PLC; I don't know that much about them) running a cylinder with a servovalve and a linear position transducer to generate linear motion with an arbitrary profile.





Mike Halloran
Pembroke Pines, FL, USA