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10.5pt;">5</span><span style="line-height: 11pt; text-indent: 0pt; font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">振动与</span><span class="18" style="line-height: 11pt; text-indent: 0pt; font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">R D</span><span style="line-height: 11pt; text-indent: 0pt; font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">控制爬行仿真分析</span></p> <p class="NewStyle19" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><span class="16" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">PID</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">自动调节，又称自动控制(比例一微分一积分控制器</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">)，</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">是工业应用控制中常 见的反馈回路部件。</span><span class="16" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">PID</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">控制器问世至今己有近70年历史，它以其结构简单、稳定 性好、工作可靠、调整方便而成为工业控制的主要技术之一。当被控对象的结构和参 数不能完全确定时，自适应控制和鲁棒控制可以克服系统中所包含的不确定性，达到 优化控制的目的。当系统控制器的结构和参数必须依靠经验和现场调试来确定时，应 用</span><span class="16" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">PID</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">控制技术最成为了最佳选择之一。下图是一个简易</span><span class="16" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">PID</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">控制器：</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle19" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">在第三章和第四章中讨论了外加振动源对爬行的改善情况，根据前两章的仿真分 析结果得出，外加振动源能够改善爬行但却不能完全抑制爬行。由于外加振动源所选 取的参数范围不好控制、又没有确切的规律性，往往不能够精确的控制住爬行。虽然 在</span><span class="16" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">ADAMS</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">的</span><span class="16" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">View</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">平台中模拟的时候，根据随机选取的参数所呈现出来的特点进一 步将最优参数细化以后得到了比较理想的速度和加速度爬行曲线，爬行有所改善，但 没能达到理想的预期目标。由于</span><span class="16" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">PID</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">控制技术最适用于不能通过有效测量手段来获得 系统参数，故有此联想可以利用</span><span class="16" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">PID</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">控制技术来控制爬行</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt; vertical-align: super;">[53</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">~</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt; vertical-align: super;">59]</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">。本章将比较单纯利 用</span><span class="16" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">PID</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">控制技术和在振动的基础上再加入</span><span class="16" style="font-family: Georgia; letter-spacing: 0pt; font-size: 10.5pt;">PID</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">控制这两种方法来分别研宄它们对数 控机床的爬行改善情况，根据它们对爬行改善的程度来剖析哪种情况下能够抑制爬行 或者说能够在一定程度上减轻爬行对机床所造成的伤害程度。</span></p> <p class="NewStyle19" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"> </p> <p class="NewStyle19" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><span style="font-size:9.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: "Times New Roman";mso-font-kerning:1.0pt;mso-ansi-language:EN-US;mso-fareast-language: ZH-CN;mso-bidi-language:AR-SA">本文采摘自“振动对数控机床进给系统爬行的影响”，因为编辑困难导致有些函数、表格、图片、内容无法显示，有需要者可以在网络中查找相关文章！本文由伯特利数控整理发表文章均来自网络仅供学习参考，转载请注明！</span></p> <p class="NewStyle19" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p></div> <div class="blank30"></div> <!-- tag --> <div class="blank10"></div> 标签： <a href='/index.php?case=tag&act=show&tag=%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>加工中心</a> <a href='/index.php?case=tag&act=show&tag=%E6%95%B0%E6%8E%A7%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>数控加工中心</a> <a href='/index.php?case=tag&act=show&tag=CNC%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>CNC加工中心</a> <a href='/index.php?case=tag&act=show&tag=%E6%95%B0%E6%8E%A7%E6%9C%BA%E5%BA%8A' target='_blank'>数控机床</a> <!-- 分类 --> <div class="blank10"></div> 分类： <a href='/bethel/type/jnc/type-1.html' target='_blank'>加工中心</a> <div class="blank30"></div> <!--自动调用自定义字段--> 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