JP4481618B2 - 大曲率曲面の加工に適した線状加熱方案の算出方法 - Google Patents
大曲率曲面の加工に適した線状加熱方案の算出方法 Download PDFInfo
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- JP4481618B2 JP4481618B2 JP2003356671A JP2003356671A JP4481618B2 JP 4481618 B2 JP4481618 B2 JP 4481618B2 JP 2003356671 A JP2003356671 A JP 2003356671A JP 2003356671 A JP2003356671 A JP 2003356671A JP 4481618 B2 JP4481618 B2 JP 4481618B2
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Description
13 展開形状
S11〜S17,S20〜S22,S31,S32 ステップ
Claims (3)
- 目的形状を平面に変形せしめる仮定による有限要素法計算により仮の展開形状と面内歪み分布と曲げ歪み分布とを算出し、前記面内歪みの主軸方向にそれぞれ平行な複数の加熱線を配置し、前記加熱線に平行な曲げ歪み成分と前記加熱線に直交する曲げ歪み成分とを算出して複数の領域ごとにそれらの積分値を算出し、前記面内歪みが最小の歪みの部位でもその歪みが収縮方向となるべく全体に一定量を加算することにより調整した面内歪み分布を算出し、前記曲げ歪みの分布及び前記調整した面内歪み分布と前記目的形状とから最終の展開形状を算出し、予め用意した加熱条件と変形の関係を有するデータベースから前記曲げ歪みの前記積分値を前記データベースの前記変形と比較することにより前記最終の展開形状から前記目的形状が得られる加熱条件を算出する、ことを特徴とする加熱方案の算出方法。
- 請求項1に記載の加熱方案の算出方法において、前記加熱線を配置する前に前記面内歪みの絶対値と前記曲げ歪みの絶対値とを比較し、前記曲げ歪みの絶対値のほうが大きい領域については前記曲げ歪みの主軸方向にそれぞれ平行な複数の加熱線を配置し、前記加熱線により近似し得る面内歪み分布を算出し、前記調整した面内歪み分布と合成する、ことを特徴とする加熱方案の算出方法。
- 請求項2に記載の加熱方案の算出方法において、前記複数の加熱線のうち最大曲げ主歪み方向に平行なものについては2本1組で加熱線を配置する、ことを特徴とする加熱方案の算出方法。
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JP2003356671A JP4481618B2 (ja) | 2003-10-16 | 2003-10-16 | 大曲率曲面の加工に適した線状加熱方案の算出方法 |
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JP2003356671A JP4481618B2 (ja) | 2003-10-16 | 2003-10-16 | 大曲率曲面の加工に適した線状加熱方案の算出方法 |
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JP2005118824A JP2005118824A (ja) | 2005-05-12 |
JP4481618B2 true JP4481618B2 (ja) | 2010-06-16 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101036660B1 (ko) * | 2008-12-09 | 2011-05-25 | 삼성중공업 주식회사 | 강제(强制) 변형을 고려한 선상가열 방법 및 그 장치 |
CN115243810A (zh) * | 2020-03-09 | 2022-10-25 | 公立大学法人大阪 | 在利用线状加热的金属板的弯曲加工中使用的加热方案的计算方法 |
CN112504533B (zh) * | 2020-12-15 | 2022-07-22 | 西安稀有金属材料研究院有限公司 | 膜基界面残余应力的表征方法 |
CN114309261B (zh) * | 2021-12-24 | 2023-05-16 | 广东工贸职业技术学院 | 双曲面金属板材的渐进成形弯曲方法 |
CN115178982B (zh) * | 2022-08-16 | 2023-07-25 | 中船黄埔文冲船舶有限公司 | 一种船舶及其曲型板的加工方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10230326A (ja) * | 1996-11-20 | 1998-09-02 | Ishikawajima Harima Heavy Ind Co Ltd | 線状加熱の加熱線配置算出方法 |
JP2000237826A (ja) * | 1999-02-22 | 2000-09-05 | Ishikawajima Harima Heavy Ind Co Ltd | 曲げ加工用金属板の展開形状選定方法 |
JP2003211230A (ja) * | 2001-11-16 | 2003-07-29 | Ihi Marine United Inc | 線状加熱の加熱方案算出方法 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10230326A (ja) * | 1996-11-20 | 1998-09-02 | Ishikawajima Harima Heavy Ind Co Ltd | 線状加熱の加熱線配置算出方法 |
JP2000237826A (ja) * | 1999-02-22 | 2000-09-05 | Ishikawajima Harima Heavy Ind Co Ltd | 曲げ加工用金属板の展開形状選定方法 |
JP2003211230A (ja) * | 2001-11-16 | 2003-07-29 | Ihi Marine United Inc | 線状加熱の加熱方案算出方法 |
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