Method for calculating meshing rigidity of gear pair with tooth root crack defect

The invention discloses a method for calculating meshing stiffness of a gear pair with tooth root crack defects. The method comprises the following steps: S1, acquiring geometric parameters and material attributes of the gear pair; s2, calculating element stiffness matrixes and assembling the elemen...

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Bibliographic Details
Main Authors LIU GUIMIAN, XUAN ZHIWEN, LI BAOGANG, JIANG HANJUN, LIU FUHAO, LIU JIAHAO
Format Patent
LanguageChinese
English
Published 30.06.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention discloses a method for calculating meshing stiffness of a gear pair with tooth root crack defects. The method comprises the following steps: S1, acquiring geometric parameters and material attributes of the gear pair; s2, calculating element stiffness matrixes and assembling the element stiffness matrixes into an integral stiffness matrix; s3, an external load F is applied to any meshing point; s4, node forces of four nodes of each unit are calculated, and node force summation is carried out on corresponding positions; s5, the compression rigidity, the shear rigidity and the torsional rigidity of each unit are calculated, and the total rigidity of the gear base body part is obtained through accumulation; s6, calculating the rigidity of the gear tooth part by adopting a minimum section method according to the length of the crack; s7, the rigidity of the gear base body part and the rigidity of the gear tooth part are superposed according to the relation between the energy and the rigidity, and the
Bibliography:Application Number: CN202211697885