17 lines
396 B
Markdown
17 lines
396 B
Markdown
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#SMMS
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(The progression from [[Structural dynamics (linear)]])
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![[non-linear objects]]
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## Example : non linear stiffness
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The relation $F_0=Kx$ is no more, instead it becomes non linear :
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$$F_0=K_1x+K_3x^3$$
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It can be though of as the stiffness depends on the amplitude of the movement
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![[non-linear stiffness]]
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Frequency Response Function example for a stiffening object
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![[non-linear FRF]]
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