基于鲁棒卡尔曼滤波的回转体薄壁零件加工仿真研究

• 作 者: 李欣荣
• 机 构: 中航工业沈阳飞机工业〈集团〉有限公司技术装备中心,
• 出 处: 中国包装工业
• 发表日期: 2014年02期
• 关键词: 薄壁零件 卡尔曼滤波 加工仿真 机械加工过程 使用性能 初始应力 切削加工 零件结构 精度 金属零件

引言金属零件切削加工变形是机械加工过程中普遍存在的问题,严重影响着产品的使用性能和精度稳定性,一直是国内外关注的重点。对于薄壁零件由于零件结构特殊性,一旦加工完成并去除装夹约束后,零件就会发生弯曲、扭曲或弯扭组合的结构变形,使零件难以达到设计要求;已经合格的零件由于初始应力和加工应力的作用,在使用过程中也会使其发生变形,使尺寸精度丧失,严重影响

Introduction Metal parts machining deformation is a common problem in the machining process, seriously affecting the performance and accuracy of product stability, has been the focus of attention at home and abroad. For thin-walled parts due to structural specificity of the parts, once the processing is complete and remove the clamping constraints, the parts will be bent, twisted or combined bending and torsion of the structural deformation, so that parts difficult to meet the design requirements; already qualified parts due to the initial stress and The role of processing stress in the use of the process will also make it deformed, the loss of dimensional accuracy, a serious impact