Howard University professor Claudia Marin-Artieda at the NEES at Buffalo laboratory with her research team and the "Yahoo frame." With 40 servers installed, the frame was shaken with servers in ...

In analysis, it is common practice to conceptualize structures, objects, and isolation systems as basic mass-spring-damper models, as depicted in Figure 42.1. All objects experience vibration when ...

A three dimensional seismic isolation system was developed and experimentally validated for high-voltage electric power transformers of weight in the range of 300 to 800kip. Although the validation ...

Keywords: Experimental studies. Analytical studies. Base isolation systems. Seismic protection. Power transformers. Tri-axial earthquake simulator testing. Seismic isolation. Base displacement.

Traditional isolators are built with metal springs or rubber blocks. They have low internal damping and generally are only effective at frequencies near 10 Hz. They also offer little to no isolation ...