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font-size: 10.5pt;">2.5</span><span style="line-height: 11pt; text-indent: 0pt; font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">本章小结：</span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">本章通过简化的机械传动进给系统的物理模型，进行数学建模。研宄了爬行机理， 并推导出数控机床产生爬行的临界速度公式。在</span><span class="18" 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;">中建立运动仿真模型，对驱动 速度、工作台质量、静动摩擦系数之差、系统的传动刚度和系统的阻尼等进行仿真分析 后，推导出各个爬行因子的影响程度。由此可以得出以下结论：</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><!--[if !supportLists]--><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">(1) </span><!--[endif]--><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">减轻工作台质量和移动部件质量、増大传动系统等效阻尼和导轨面的阻尼都能 起到改善爬行的作用。</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><!--[if !supportLists]--><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">(2) </span><!--[endif]--><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">可以采用静压导轨、导轨防爬润滑油或导轨材料用聚四氟乙烯等方法来减少静 动摩擦系数之差来达到减少爬行的目的。</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><!--[if !supportLists]--><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">(3) </span><!--[endif]--><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">通过减小结合面、增大结构尺寸、缩短传动链和提高动力源刚度等方法来提高 机械系统的传动刚度改善爬行。</span><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;"><o:p></o:p></span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><span style="font-family: 宋体; letter-spacing: 0pt; font-size: 11pt;">事实上，不论是单纯的增大驱动速度，减小工作台质量和静动摩擦系数之差，还是 提高系统的传动刚度和阻尼都不能完全解决爬行问题，由于加工零件的尺寸形状、机床 的材料和经费等各方面因素综合考虑下来，很难达到最优的参数比，说明应用这种方法 改善爬行具有一定的局限性。</span></p> <p class="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"> </p> <p class="NewStyle20" 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="NewStyle20" style="margin-left: 0pt; text-indent: 18pt; line-height: 21.85pt;"><span 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