Hi folks,

Looking for some torsional spring shapes to rotate some mirrors. In fact, the
only ideas in hand are related either to the thin straight beams or folded
springs (meanders). they are probably the only choices, but i didn't find any
technical documentation to optimise the folded spring (size, number of meanders,
eigenfrequency), which obviously would save a lot of time rather than running
FEM packages... Any advices would be greatly appreciated fellas. By the way, I
heard about roark's digitised formulas, does anyone have them or could tell me
if we could rely on them and under which conditions...

Many thanks in anticipation

Sofiane



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