Description: Spring isolator coefficient k0 = 4.5 hc = 3.5 d = [3.15 3.23] a1 = tan (pi* (d)./(2* hc)) a2 = cot (pi* (d)./(2* hc )) plot (d, a1) y = (a1+ a2)* 2* k0* hc* 1e-3./piy = y./9.8* 8 var = 1+ (tan (pi* (d+ 0.25 )./(2* hc ))).^ 2 k = 2* k0* hc/pi* (var* pi./(2* hc)+ var* pi./(2* hc)./(var-1
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