To provide an evaluation apparatus, an evaluation method, and a program capable of appropriately performing a strength evaluation of a structural member.SOLUTION: An evaluation apparatus 10 includes a model acquisition unit 12 that acquires an analysis model, an extraction unit 14 that extracts a reference node pair from a plurality of nodes that belong to the same element as a target node, with any node on a surface of the analysis model as the target node, a definition unit 16 that defines a virtual node between two nodes in the reference node pair, a load-bearing unit 18 that gives a load to the analysis model, a displacement acquisition unit 20 that acquires a displacement of each of the node of the analysis model, and a calculation unit 22 that calculates a value relating to a strength of a part corresponding to a target node of a wagon frame based on the displacement of each node. The extraction unit 14 extracts a combination of two nodes capable of forming a triangle with the target node as the reference node pair. However, a combination of nodes that does not have a common element to which both nodes belong is excluded from the reference node pair.SELECTED DRAWING: Figure 1
【課題】構造部材の強度評価を適切に行うことができる、評価装置、評価方法およびプログラムを提供する。【解決手段】評価装置10は、解析モデルを取得するモデル取得部12と、解析モデルの表面の任意の節点を対象節点として、対象節点と共通の要素に属する複数の節点から基準節点ペアを抽出する抽出部14と、基準節点ペアの2つの節点の間に仮想節点を規定する規定部16と、解析モデルに荷重を与える荷重負荷部18と、解析モデルの各節点の変位を取得する変位取得部20と、各節点の変位に基づいて台車枠の対象節点に対応する部位の強度に関する値を算出する算出部22とを備える。抽出部14は、対象節点とともに三角形を形成することができる2つの節点の組み合わせを基準節点ペアとして抽出する。ただし、双方の節点が属する共通の要素が存在しない節点の組み合わせは、基準節点ペアから除外される。【選択図】 図1
EVALUATION APPARATUS, EVALUATION METHOD, AND PROGRAM
評価装置、評価方法およびプログラム
2021-04-30
Patent
Electronic Resource
Japanese
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |
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