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float: left; width: 180px; height: 180px;" /></h3> <p> <span style="font-size:36px;"><a href="http://cpzyc.cn">彎管機</a>廠家對彎管機的設計和管子的受力計算</span></p> <p> <span style="font-size:20px;">根據(jù)“彈塑性力學”教科書上的知識。</span></p> <p> <span style="font-size:20px;">這是一個力矩平衡方程，左邊的是外力力矩，右邊的是內力力矩，它等于應力對中性軸產(chǎn)生的力矩的整個截面上的積分。彎曲時，管子的軸線就是中心軸。</span></p> <p> <span style="font-size:20px;">若圓管的外徑D、內徑d，屈服極限OS，在曲率半徑為R的靠模上進行彎管變形，因此，管子的內圈半徑即為R。再設管子從發(fā)生彎曲變形的點到施力的點之距離為L，材料無硬化，則發(fā)生彎管變形時，整個潔面均進入塑性狀態(tài)。</span></p> <p> <span style="font-size:20px;">故：P*L=2*Integral{2*x*DY*OS*y,0,D/2}-2*Integral{2*x*DY*OS*y,0,d/2}</span></p> <p> <span style="font-size:20px;"> ={D^3-d^3}*OS/6</span></p> <p> <span style="font-size:20px;"> P={D^3-d^3}*OS/[6*L]</span></p> <p> <span style="font-size:20px;"> 這就是材料無硬化 時彎管受力的大小。</span></p> <p> </p> <div id="geo60wcq" class="float_c news-page fs_14"> <div id="geo60wcq" class="f_l"> 上一篇：<a href='/hyxw/2069.html'>彎管機的使用和彎曲</a> </div> <div id="geo60wcq" class="f_r"> 下一篇：<a href='/hyxw/2073.html'>彎頭坡口機的液壓系統(tǒng)以及工作原理</a> </div> </div> </div> </div> </div> </div> <div id="geo60wcq" class="footer"> <div id="geo60wcq" class="w_1200 float_c pos_r"> <div id="geo60wcq" class="f_l"> <ul class="list_none footer_ul"> <li> <span>關于我們</span> <a href="/guanyuoushang/">關于奧程</a> <a href="/oushangfengcai/">企業(yè)文化</a> <a href="/shengchanshili/">生產(chǎn)實力</a> <a href="/fuwuliucheng/">服務流程</a> <a href="/fuwulinian/">服務理念</a> </li> <li> <span>設備列表</span> <a href="/bzdtbj/">彎頭機系列</a> <a href="/qzdy1/">彎管機系列</a> <a href="/qzdt123/">擴管機系列</a> <a href="/qzdcm72/">三通機系列</a> <a href="/zsg523/">坡口機系列</a> <a href="/cjgg41/">液壓機系列</a> <a href="/fbj43/">模具</a> </li> <li> <span>視頻中心</span> <a href="/videoshi/">彎頭機視頻</a> <a href="/videomeifeng/">彎管機視頻</a> <a href="/video2/">擴管機視頻</a> <a href="/videobo/">三通機視頻</a> <a href="/video3/">坡口機視頻</a> <a href="/video5/">液壓機視頻</a> <a href="/video4/">模具視頻</a> </li> <li> <span>新聞中心</span> <a href="/gsxw/">奧程動態(tài)</a> <a href="/hyxw/">管件設備資訊</a> </li> <li> <span>聯(lián)系我們</span> <a href="/contact/">聯(lián)系我們</a> <a href="http://cpzyc.cn/sitemap.html">網(wǎng)站地圖</a> </li> </ul> </div> <div id="geo60wcq" class="f_r scan txt_c fs_26 c_white"> <img height="200" width="200" src="/templets/os/images/home/wx.jpg" alt="微信掃一掃" > 微信掃一掃 </div> <div id="geo60wcq" class="pos_a footer_share float_c"> <i class="share_xl -mob-share-weibo" title="新浪微博"></i> <i class="share_wx -mob-share-weixin" title="微信分享"></i> <i class="share_qq -mob-share-qq" title="qq分享"></i> </div> </div> <div id="geo60wcq" class="foot pos_f"> <div id="geo60wcq" class="w_1200 float_c c_white"> <span>滄州奧程機械設備有限公司</span> <i></i> <span>177-6157-0021</span> <!--<a class="head_a1 contact" target="_blank" ></a>--> </div> </div> </div> <script src="/templets/os/js/jquery.min.js"></script> <script src="/templets/os/js/jquery.lazyload.js"></script> <script src="/templets/os/js/jquery.SuperSlide.2.1.1.js?v=20160901"></script> <script src="/templets/os/js/public.js"></script> <!-- WPA Button Begin --> <!--<script charset="utf-8" type="text/javascript" src="http://wpa.b.qq.com/cgi/wpa.php?key=XzkzODAwMjA3Nl80MTY0NjFfNDAwMDE2ODUwM18"></script>--> <!-- WPA Button END --> <!-- WPA Button Begin --> <!--<script charset="utf-8" type="text/javascript" src="http://wpa.b.qq.com/cgi/wpa.php?key=XzkzODAwMjA3Nl80NDQ2NjlfNDAwMDE2ODUwM18"></script>--> <!-- WPA Button End --> <!-- WPA Button Begin --> <!-- WPA Button End --> <!-- 百度統(tǒng)計 --> </div> <script src="js/jquery.min.js"></script> <!-- jq插件 --> <script src="js/jquery.SuperSlide.2.1.1.js?v=20160901"></script> <!-- 輪播圖插件 --> <script src="js/public.js"></script> <footer> <div class="friendship-link"> <p>感谢您访问我们的网站，您可能还对以下资源感兴趣：</p> <a href="http://cpzyc.cn/" title="久久九九99">久久九九99</a> <div class="friend-links"> </div> </div> </footer> <script> (function(){ var bp = document.createElement('script'); 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