動吸振器
ζ a o p t = μ ( 4 + 3 μ ) 8 ( 1 + μ ) ( 2 + μ ) − ζ m μ 3 4 ( 1 + μ ) ( 4 + 3 μ ) 2 ( 2 + μ ) 3 + ζ m 2 4096 + 13760 μ + 18608 μ 2 + 12640 μ 3 + 4287 μ 4 + 576 μ 5 32 2 μ 3 ( 1 + μ ) 3 ( 2 + μ ) 5 ( 4 + 3 μ ) 5 + ζ m 3 μ 3 b 2 32 ( 1 + μ ) 2 ( 4 + 3 μ ) 4 2 ( 2 + μ ) 7 {\displaystyle {\begin{alignedat}{3}\zeta _{a\ opt}=&{\sqrt {\frac {\mu (4+3\mu )}{8(1+\mu )(2+\mu )}}}-\zeta _{m}{\frac {\mu ^{3}}{4(1+\mu )(4+3\mu ){\sqrt {2(2+\mu )^{3}}}}}\\&+\zeta _{m}^{2}{\frac {4096+13760\mu +18608\mu ^{2}+12640\mu ^{3}+4287\mu ^{4}+576\mu ^{5}}{32}}{\sqrt {\frac {2\mu ^{3}}{(1+\mu )^{3}(2+\mu )^{5}(4+3\mu )^{5}}}}\\&+\zeta _{m}^{3}{\frac {\mu ^{3}b_{2}}{32(1+\mu )^{2}(4+3\mu )^{4}{\sqrt {2(2+\mu )^{7}}}}}\\\end{alignedat}}}