计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2013年
10期
264-266
,共3页
叶片%配准定位%公差约束%迭代最近点匹配算法
葉片%配準定位%公差約束%迭代最近點匹配算法
협편%배준정위%공차약속%질대최근점필배산법
blade%model registration%tolerance zone%Iterative Closest Point Algorithm(ICP)
针对航空发动机叶片检测分析中的模型配准定位问题,结合叶片型面不同区域的设计公差要求不同的特点,以减少配准后超差点的数目为目标,提出了一种公差约束条件下的叶片模型配准方法.在迭代最近点匹配算法(Iterative Closest Point Algorithm,ICP)的基础上,根据公差要求定义约束区域,依据约束区域对点集进行加权处理,并给出了加权后的目标函数及其求解方法.通过实例验证了该方法是有效的,具有实用价值.
針對航空髮動機葉片檢測分析中的模型配準定位問題,結閤葉片型麵不同區域的設計公差要求不同的特點,以減少配準後超差點的數目為目標,提齣瞭一種公差約束條件下的葉片模型配準方法.在迭代最近點匹配算法(Iterative Closest Point Algorithm,ICP)的基礎上,根據公差要求定義約束區域,依據約束區域對點集進行加權處理,併給齣瞭加權後的目標函數及其求解方法.通過實例驗證瞭該方法是有效的,具有實用價值.
침대항공발동궤협편검측분석중적모형배준정위문제,결합협편형면불동구역적설계공차요구불동적특점,이감소배준후초차점적수목위목표,제출료일충공차약속조건하적협편모형배준방법.재질대최근점필배산법(Iterative Closest Point Algorithm,ICP)적기출상,근거공차요구정의약속구역,의거약속구역대점집진행가권처리,병급출료가권후적목표함수급기구해방법.통과실례험증료해방법시유효적,구유실용개치.
To solve the model registration problem in the inspection of aeroengine blades, a tolerance zone constrained registra-tion algorithm is proposed for the purpose of reducing the number of measuring points out of range of the given tolerance zone. This method is based on the Iterative Closest Point Algorithm(ICP)and takes tolerance requirements into consideration. The con-straint regions are defined and weighting value is assigned to measuring points according to the constraint regions. The objective function of the tolerance zone constrained registration algorithm is established and a method to solve the function is presented. The experiments demonstrate that this approach is feasible and effective.