公开(公告)号：EP4152200A1

公开(公告)日：2023-03-22

申请号：EP22150590.2

申请日：2022-01-07

申请人： Hitachi, Ltd.

发明人： INOUE, Akira

IPC分类号： G06F30/23 ,  G01H17/00 ,  G06F119/10 ,  G06F119/14

摘要： In example implementations described herein, there are systems and methods for computation of force and moment in the time domain for a physical system including one or more sensors, which can involve obtaining material properties and first modal properties of the physical system; generating a material property matrix from the material properties and second modal properties from the obtained modal properties; measuring, via the sensors, a set of motion responses of the physical system; obtaining first quantities based on the second modal properties and the material property matrix; calculating a first intermediate matrix from the second modal properties and the set of motion responses; recursively computing, for each time step during measurement of the response, a second intermediate matrix based on (1) the first quantities, (2) the second modal properties, (3) the first intermediate matrix, and (4) a previously computed second intermediate matrix from at least one previous time step; and calculating the force and the moment for each time step during the measurement of the set of motion responses based on the second intermediate matrix and the second modal properties.