This proposed method combined with the sensitivity of Inter-Story Drift Mode Rapamycin Shape, IDMS, not only can express the true damage position of these test specimens but also can reveal the damage degree of damage structure. This proposed method is very useful for monitoring the structural damage. The test results demonstrate that using the continuous parameter to improve the DIC method to detect dynamic response of structural damage under the excitation of external force has high practicability. All of these test results indicated that the accuracy degree of this proposed method is high enough for applying it to achieve dynamic response of building under excitation of external force.AcknowledgmentThe National Science Council of Taiwan supported this research through Grant nos.
99-2625-M-327 -002, and 99-2625-M-167-001. These supports are gratefully acknowledged.
The computational requirements for the solution of hyperbolic problems could become prohibitive in the case of three-dimensional, geometrically complex enclosures. These requirements increase further when realistic fluid flows like viscous or turbulent flows are considered, thereby requiring larger computational effort and memory. Recent developments in high-performance computing promise a substantial increase in computational speed and offer new possibilities for more accurate simulations. Three-dimensional domain decomposition is used to speed the calculations, where the computational domain is decomposed into a number of rectangular blocks with each processor being responsible for a single block.
An example of this decomposition can be seen by the gaps in the grid in Figure 6 for the specific case of 16 processors.Figure 6Mesh and domain decomposition for 64 �� 64 �� 64 grid with a 4 �� 2 �� 2 processor configuration.Most of the calculations in the interior of each of the subdomains are independent of the domain decomposition and can continue as if they are performed serially. Problems arise near the subdomain boundaries where, for example, finite differences calculated adjacent to the subdomain boundaries may need several points outside the subdomain. To support these circumstances, two rows of ��ghost points�� are carried along with the interior solutions that contain copies of the interior solution from the neighboring subdomain.
These points are exchanged and updated from neighboring processors as needed to ensure that all near-wall calculations are performed with current variable values.If a uniform grid is used, then the subdomains in each direction will contain equal number of grid points. However, for a nonuniform grid, the the division locations between the subdomains need to be selected to provide good Brefeldin_A load balancing or an equivalent amount of work for each processor in each time step.