The Modeling Method for Vibration Characteristics Analysis of Composite-Laminated Rotationally Stiffened Plate

<div>Variation curve of frequency parameter Ω with the thickness of laminated curved beam for composite stiffened circular plate under the same thickness to width ratio. 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438 460 451 436 451S388 441 356 423C311 397 229 336 170 256H168L189 340C208 418 200 451 177 451C144 451 82 413 24 352L40 322C65 345 98 369 108 369C114 369 119 363 112 335L28 -3L36 -12C54 -3 83 4 112 10C125 73 138 122 153 174C205 258 328 382 376 382C395 382 399 369 384 305L330 93C312 25 323 -12 351 -12C378 -12 439 21 504 89Z"></path></g><g transform="matrix(.013,0,0,-0.013,30.978,0)"><path d="M535 323V373H52V323H535ZM535 138V188H52V138H535Z"></path></g><g transform="matrix(.013,0,0,-0.013,42.24,0)"><path d="M384 0V27C293 34 287 42 287 114V635C232 613 172 594 109 583V559L157 557C201 555 205 550 205 499V114C205 42 199 34 109 27V0H384Z"></path></g></svg>,</span> (c) <span class="nowrap"><svg height="12.5794pt" id="M253" style="vertical-align:-3.29107pt" version="1.1" viewbox="-0.0498162 -9.28833 48.6906 12.5794" width="48.6906pt" 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="M452 333C452 398 425 448 375 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Shock and Vibration

fig13

Figure 13

Figure 13: The Modeling Method for Vibration Characteristics Analysis of Composite-Laminated Rotationally Stiffened Plate 