To provide an automotive body joining position optimization analysis method, device and program for achieving an optimal layout of a joining line so as to minimize the length of the joining line and properly adjusting component shape, while improving fatigue life of a continuous joining line that joins component sets under a variable load condition.SOLUTION: An automotive body joining position optimization analysis method includes: setting the whole or a part of an automotive body model as a model to be analyzed (S1); setting a candidate joining line and generating a joining line optimization analysis model 151 (S3); setting a variable load condition (S5); setting a target fatigue life (S6); performing a joining line sensitivity analysis (S7); generating a joining line/component shape optimization analysis model 156 (S8); setting an optimization analysis condition (S9) in an optimization analysis condition setting step; and providing the variable load condition to the joining line/component shape optimization analysis model 156, to perform an optimization analysis, and determining optimal layout of a joining line 157 for achieving the optimization analysis condition (S11).SELECTED DRAWING: Figure 15
【課題】変動荷重条件下で部品組みを接合する連続接合線の疲労寿命を向上させつつ、接合線の長さを最小化する接合線の最適な配置と部品形状の適正化を同時に達成する車体の接合位置の最適化解析方法、装置およびプログラムを提供する。【解決手段】本発明に係る車体の接合位置の最適化解析方法は、車体モデルの全部又は一部を解析対象モデルとして設定し(S1)、接合候補線を設定して接合線最適化解析モデル151を生成し(S3)、変動荷重条件を設定し(S5)、目標疲労寿命を設定し(S6)、接合線感度解析を行い(S7)、接合線・部品形状最適化解析モデル156を生成し(S8)、最適化解析条件として設定する最適化解析条件設定ステップ(S9)と、変動荷重条件を接合線・部品形状最適化解析モデル156に与えて最適化解析を行い、最適化解析条件を達成する接合線157の最適配置を求める(S11)ものである。【選択図】 図15
AUTOMOTIVE BODY JOINING POSITION OPTIMIZATION ANALYSIS METHOD, DEVICE, AND PROGRAM
車体の接合位置の最適化解析方法、装置及びプログラム
2023-12-07
Patent
Electronic Resource
Japanese
AUTOMOTIVE BODY JOINING POSITION OPTIMIZATION ANALYSIS METHOD, DEVICE, AND PROGRAM
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