Investigation of Collision Behavior of Hoisting Catenaries during a Lifting Cycle in Coal Mines

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/mpe/volume-2015/640712/figures/640712.fig.0021a.svgz" name="640712.fig.0021a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Excitation: <svg height="11.5564pt" id="M140" style="vertical-align:-2.26807pt" version="1.1" viewbox="-0.0498162 -9.28833 68.4489 11.5564" width="68.4489pt" 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="M241 635C89 635 35 457 35 312C35 153 89 -12 240 -12C390 -12 443 166 443 312C443 466 390 635 241 635ZM238 602C329 602 354 454 354 312C354 172 330 22 240 22C152 22 124 173 124 313S148 602 238 602Z" id="g113-49"></path><glyph.data ascent="3473" descent="-2876" horiz-adv-x="480" vert-adv-y="480"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,6.24,0)"><path d="M113 -12C146 -12 170 11 170 46C170 78 146 103 114 103S58 78 58 46C58 11 82 -12 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vert-adv-y="346"></glyph.data></g></svg></td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/mpe/volume-2015/640712/figures/640712.fig.0021b.svgz" name="640712.fig.0021b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Excitation: <svg height="11.5564pt" id="M141" style="vertical-align:-2.26807pt" version="1.1" viewbox="-0.0498162 -9.28833 74.7123 11.5564" width="74.7123pt" 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="M285 378C315 398 338 416 353 432C373 451 384 474 384 503C384 579 325 635 236 635H235C182 635 136 610 108 579L65 516L85 496C110 533 150 575 205 575C258 575 300 543 300 481C300 407 232 369 141 339L147 310C163 315 188 321 211 321C268 321 338 284 338 192C338 94 288 40 217 40C160 40 119 68 93 91C85 98 77 97 69 91C60 84 47 71 46 58C44 46 48 35 62 22C75 10 116 -12 162 -12C234 -12 424 62 424 224C424 297 373 359 285 376V378Z" 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<div>Simulation of transverse vibrations in lower catenary 3.</div>

Mathematical Problems in Engineering

fig21

Figure 21

Figure 21: Investigation of Collision Behavior of Hoisting Catenaries during a Lifting Cycle in Coal Mines 