To obtain an optimum load transmission structure which divides a collision load input to a vehicle body skeleton component and transmits the load to a plurality of load bearing components at the time of collision of a vehicle.SOLUTION: An optimization analysis device of a load transmission structure in a vehicle body skeleton component of a vehicle according to the present invention sets a collision load input portion 121 and a plurality of load transmission portions 123 in a vehicle body skeleton component of an optimization analysis model 120 (21a) in setting of an analysis condition of optimization analysis (21), determines a transmission load in each load transmission portion by dividing the collision load to be equal to or less than a withstand load of a plurality of load bearing components (21b), sets a load condition for setting the determined transmission load as reaction force of the collision load relative to each load transmission portion 123 and a constraint condition for constraining a displacement of the collision load input portion 121 (21c), and sets a prescribed objective function and a restriction condition for setting the displacements of the plurality of load transmission portions 123 equal to each other as an optimization analysis condition (21d).SELECTED DRAWING: Figure 1
【課題】自動車の衝突時に車体骨格部品に入力した衝突荷重を分配して複数の耐荷重部品に伝達させる最適な荷重伝達構造を求める。【解決手段】本発明に係る自動車の車体骨格部品における荷重伝達構造の最適化解析装置は、最適化解析の解析条件の設定において(21)、最適化解析モデル120の車体骨格部品における衝突荷重入力部位121と複数の荷重伝達部位123とを設定し(21a)、衝突荷重を複数の耐荷重部品の耐荷重以下に分配して各荷重伝達部位における伝達荷重を決定し(21b)、決定した伝達荷重を各荷重伝達部位123に対して衝突荷重の反力として設定する荷重条件と、衝突荷重入力部位121の変位を拘束する拘束条件と、を設定し(21c)、最適化解析条件として、所定の目的関数と、複数の荷重伝達部位123の変位が等しいとする制約条件と、を設定する(21d)。【選択図】 図1
OPTIMIZATION ANALYSIS METHOD, DEVICE AND PROGRAM OF LOAD TRANSMISSION STRUCTURE IN VEHICLE BODY SKELETON COMPONENT OF VEHICLE, AND MANUFACTURING METHOD OF LOAD TRANSMISSION MEMBER IN VEHICLE BODY SKELETON COMPONENT OF VEHICLE
自動車の車体骨格部品における荷重伝達構造の最適化解析方法、装置及びプログラム、自動車の車体骨格部品における荷重伝達部材の製造方法
2023-09-14
Patent
Electronic Resource
Japanese
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