Frank wrote:

"Spike" wrote in message
.. .
Frank wrote:

The spring and damper can be exactly model as an electrical analog;

I'm sure you're right.

However, a coil/capacitor is not a model or analogue of a
spring/damper system. It was discussed extensively at the time.


I am not sure I understand your response. To be exact a "spring/damper" can
be modeled as a coil/resistor.

I refer you my other post on the subject, where I quote the OP in
full.

For resonance to occur you need a
capacitor/inductor, or mass/spring. All components of either mechanical or
electrical circuits require the solution of the same simple differential
equation, such as i = C*dv/dt etc.

No-one was arguing that that was not the case. A spring might have the
mechanical equivalent of reactance, but a damper will most certainly
not - hence the rubbish posted by the OP, where he believes that
dampers store energy. They do not, and therefore cannot have the
mechanical equivalence of a reactance. Therefore, resonance is not
possible with such a system. In the extreme, the OP was reduced to
likening dampers to bicycle pumps, a sure sign of a failure to grasp a
fundamental point (and hence the error of his assertion).

from
Aero Spike