A Novel Shock Absorber with the Preload and Global Negative Stiffness for Effective Shock Isolation

<div>The dimensionless resilient force-displacement curves of the NSA (<span class="nowrap"><svg height="12.2089pt" id="M95" style="vertical-align:-2.503pt" version="1.1" viewbox="-0.0498162 -9.7059 27.1974 12.2089" width="27.1974pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M430 689C430 695 425 700 413 700C377 700 332 667 290 635C232 640 213 677 213 696C213 713 220 724 226 732L209 744C166 731 135 700 135 674C135 636 184 601 255 599C144 503 23 345 23 181C23 82 68 44 135 20C156 12 177 7 202 2C238 -5 252 -25 252 -53C252 -98 211 -144 192 -164L214 -187C257 -152 328 -92 328 -19C328 31 298 58 251 70C230 75 208 81 189 88C142 105 108 134 108 208C108 346 202 512 303 595C352 599 430 626 430 689Z"></path></g><g transform="matrix(.013,0,0,-0.013,9.523,0)"><path d="M535 323V373H52V323H535ZM535 138V188H52V138H535Z"></path></g><g transform="matrix(.013,0,0,-0.013,20.786,0)"><path d="M241 635C89 635 35 457 35 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Shock and Vibration

fig9

Figure 9

Figure 9: A Novel Shock Absorber with the Preload and Global Negative Stiffness for Effective Shock Isolation 