Dynamic Behavior of Supported Structures from Free-Free Modal Tests Using Structural Dynamic Modification

<div>Evolution of the natural frequencies for different values of (a) <svg height="11.927014pt" id="M59" style="vertical-align:-3.291109pt" version="1.1" viewbox="-0.049816 -8.635905 23.268639 11.927014" width="23.268639pt" 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="M600 0V24L339 665L311 657L43 24V0H600ZM497 50H107L303 539L497 50Z"></path></g><g transform="matrix(.013,0,0,-0.013,8.364,0)"><path d="M743 650H503L496 622L527 618C563 613 564 603 532 573C449 495 371 431 323 392C301 374 272 355 246 346L280 522C297 609 300 614 379 622L385 650H135L129 622C209 614 215 609 198 522L124 133C106 39 99 35 23 28L17 0H271L277 28C193 35 192 39 208 133L239 316C264 328 280 325 303 288C368 183 435 90 502 0H652L659 28C602 34 584 43 543 94C495 154 403 283 347 369L574 554C634 603 659 612 735 624L743 650Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,17.629,3.132)"><path d="M528 97L513 125C484 95 440 68 431 68C425 68 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Fixed-free configuration (<i>X</i>-axis).</div>

Shock and Vibration

fig11

Figure 11

Figure 11: Dynamic Behavior of Supported Structures from Free-Free Modal Tests Using Structural Dynamic Modification 