计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2009年
31期
190-192,199
,共4页
截面方向%概念设计%车身结构%梁单元
截麵方嚮%概唸設計%車身結構%樑單元
절면방향%개념설계%차신결구%량단원
section orientation%concept design%body structure%beam element
在车身结构概念设计阶段,需要对梁单元赋截面并调整截面的方向.研究了UG中调整截面方向的规律,设计了一种调整梁截面方向的工具.主要介绍了调整截面方向的方法:首先在UG的草图中建立简化的截面,利用坐标转换公式及形心公式计算主惯性轴,然后建立一个向量V控制草图中的截面方向,最后通过坐标变换得到空间调整截面方向的向量.利用此工具对某款轿车进行了分析,结果表明,采用此方法不仅大大提高了车身结构概念设计的效率,而且提高了设计的精度.
在車身結構概唸設計階段,需要對樑單元賦截麵併調整截麵的方嚮.研究瞭UG中調整截麵方嚮的規律,設計瞭一種調整樑截麵方嚮的工具.主要介紹瞭調整截麵方嚮的方法:首先在UG的草圖中建立簡化的截麵,利用坐標轉換公式及形心公式計算主慣性軸,然後建立一箇嚮量V控製草圖中的截麵方嚮,最後通過坐標變換得到空間調整截麵方嚮的嚮量.利用此工具對某款轎車進行瞭分析,結果錶明,採用此方法不僅大大提高瞭車身結構概唸設計的效率,而且提高瞭設計的精度.
재차신결구개념설계계단,수요대량단원부절면병조정절면적방향.연구료UG중조정절면방향적규률,설계료일충조정량절면방향적공구.주요개소료조정절면방향적방법:수선재UG적초도중건립간화적절면,이용좌표전환공식급형심공식계산주관성축,연후건립일개향량V공제초도중적절면방향,최후통과좌표변환득도공간조정절면방향적향량.이용차공구대모관교차진행료분석,결과표명,채용차방법불부대대제고료차신결구개념설계적효솔,이차제고료설계적정도.
The beams element,endued with sections,should adjust the orientation of sections at the phase of car body structure concept design.The rule how to adjust orientation of beam sections in UG is studied,the tools for adjusting section orientation of beams are designed,and the method that can adjust section orientation is introduced.At first,a simply section is created in the sketch of UG,then the principal moment of inertia is calculated by coordinate transition formula and a vector V which controls the orientation of section is created.A vector that adjusted the orientation of section is received by coordinate transition.The car is analyzed by tool.The result shows this method not only improves the efficiency of car body structure concept design but also improves the design precision.
