In the second step, damping is identified using updated mass and stiffness matrices, which are obtained in first step.
The results are compared with the updated mass matrix to consider the orthogonality requirement only and the updated stiffness matrix to consider the eigenvalue function only, respectively.
The cost function is expressed by the sum of the quadratic forms of both the difference between analytical and updated mass, and stiffness matrices.
In the first step, mass and stiffness matrices are updated using FRF data and in the second step, damping matrix is identified using updated mass and stiffness matrices that are obtained in the previous step.
In the first step, mass and stiffness matrices are updated and in the second step, structural damping matrix is identified using updated mass and stiffness matrices, which are obtained in the previous step.
First, associations of chikungunya virus infected patients helped families (through means that included psychological and friendly support and home visits) and updated mass media with regard to disease complications, persistent symptoms, and administrative difficulties (including receiving long-term sick leave and disability, recognition of professional exposure, and free analgesic medication).
The main idea of the presented method is to update stiffness, mass and damping parameters of the finite element model using vibration test data under base excitation.
In this paper the method is extended by calculating the fluxes of mass, momentum and energy between cells assuming a linear variation of density, temperature and velocity in each cell and using these fluxes to update the mass, velocity and internal energy carried by each particle.
When we adjusted for baseline body mass index instead of updated body mass index or stopped updating diet after diagnosis of gestational diabetes, cardiovascular disease, or cancer when calculating the cumulative average of dietary intake, the inverse associations became weaker, although the associations for blueberries, grapes and raisins, and apples and pears remained statistically significant.
