JP5038761B2 - 締結構造体の強度解析方法 - Google Patents
締結構造体の強度解析方法 Download PDFInfo
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- JP5038761B2 JP5038761B2 JP2007087760A JP2007087760A JP5038761B2 JP 5038761 B2 JP5038761 B2 JP 5038761B2 JP 2007087760 A JP2007087760 A JP 2007087760A JP 2007087760 A JP2007087760 A JP 2007087760A JP 5038761 B2 JP5038761 B2 JP 5038761B2
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- screw member
- spring constant
- calculation
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Description
本発明は、概略、おねじ部材1とめねじ部材2とを締結してなる締結構造体の強度を解析する方法であって、おねじ部材1とめねじ部材2のねじ山の接触部位における節点の径方向、周方向、および垂直方向に作用するバネを仮想し、各仮想されたバネの、接触部位が受ける応力と等価なバネ定数kr、kθ、knを求めて定義し、接触部位が受ける応力を前記バネに置き換えて、強度の解析に必要な計算を行うものである。
Claims (1)
- コンピュータがFEM解析によりおねじ部材とめねじ部材とを締結してなる締結構造体の強度を解析する方法であって、
前記コンピュータが、
おねじ部材とめねじ部材の計算モデルの作成及び前記計算モデルにおける互いのねじ山の接触の定義を行うための操作入力を受け付け、
前記おねじ部材の計算モデルに、軸力を与える計算を実施してねじ山の接触面に沿った径方向の摩擦力と変位量を求めるとともに、トルクを与える計算を実施しておねじ部材とめねじ部材のねじ山の接触面に沿った周方向の摩擦力と変位量を求め、
前記径方向の摩擦力と変位量の比から径方向のバネ定数を求めるとともに、前記周方向の摩擦力と滑り量の比から周方向のバネ定数を求め、また、前記おねじ部材とめねじ部材の接触面に対する垂直方向に仮想されるバネ定数として、前記おねじ部材とめねじ部材のねじ山の互いの接触面が離れることがないものと考え得る充分に大きい値を設定し、
前記おねじ部材とめねじ部材の接触部位の間における節点の、接触面の径方向と周方向と垂直方向との3方向にそれぞれ作用するものと仮想されるバネ定数として、前記径方向のバネ定数、周方向のバネ定数、および接触面の垂直方向のバネ定数をそれぞれ仮想定義することにより、おねじ部材とめねじ部材の接触部位が受ける応力と等価なバネに置き換え、
前記バネ定数が仮想定義された計算モデルについて、強度の解析に必要な計算を行うことを特徴とする締結構造体の強度解析方法。
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JP2007087760A JP5038761B2 (ja) | 2007-03-29 | 2007-03-29 | 締結構造体の強度解析方法 |
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JP2007087760A JP5038761B2 (ja) | 2007-03-29 | 2007-03-29 | 締結構造体の強度解析方法 |
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JP2008250410A JP2008250410A (ja) | 2008-10-16 |
JP5038761B2 true JP5038761B2 (ja) | 2012-10-03 |
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JP2007087760A Expired - Fee Related JP5038761B2 (ja) | 2007-03-29 | 2007-03-29 | 締結構造体の強度解析方法 |
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Families Citing this family (2)
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JP2010165013A (ja) * | 2009-01-13 | 2010-07-29 | Fujitsu Ltd | 解析用モデル生成装置,解析用モデル生成方法および解析用モデル生成プログラム |
CN114357818B (zh) * | 2021-11-22 | 2024-02-23 | 西安热工研究院有限公司 | 一种风力发电机组叶根t型螺母强度校核方法 |
Family Cites Families (5)
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JPH09189601A (ja) * | 1996-01-08 | 1997-07-22 | Ricoh Co Ltd | 振動解析法 |
JPH09212683A (ja) * | 1996-02-01 | 1997-08-15 | Hitachi Ltd | 構造解析システムと構造解析方法 |
JP2003080393A (ja) * | 2001-09-07 | 2003-03-18 | Nkk Corp | 溶接変形推定方法及び溶接変形推定装置 |
JP4354169B2 (ja) * | 2002-10-11 | 2009-10-28 | シャープ株式会社 | ギア駆動系設計システム |
JP4522786B2 (ja) * | 2004-08-13 | 2010-08-11 | 株式会社小松製作所 | 締結された構造物の解析方法 |
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