%0 Journal Article %T Hydrodynamics Induced Vibration to Trash Racks (TECHNICAL NOTE) %J International Journal of Engineering %I Materials and Energy Research Center %Z 1025-2495 %A Sadrnejad, S. A. %D 2002 %\ 12/01/2002 %V 15 %N 4 %P 357-368 %! Hydrodynamics Induced Vibration to Trash Racks (TECHNICAL NOTE) %K Trash %K racks %K Natural frequency %K Numerical Solution %R %X In conventional power plants trash-racks are provided at the intakes to protect the turbines. In pumped storage plants, the draft tube or tailrace must also have trash-racks to protect the units while pumping. Because the loads believed to cause many failures of trash-racks are dynamic in nature, it is important to understand the dynamic characteristics of trash-rack structures in general and a single rack in particular. The classical added-mass solution structure-fluid dynamic interaction is known as an approximate solution procedure. An accurate added-mass approach mixed with implementation in finite element framework is proposed. In this proposal, experimental conclusions, supported by theory, led to presentation of more accurate results in vibration of trash-racks. This numerical solution as a powerful method to solve such a complex problem can be employed to carry out dynamic characteristics of these structures while vibrating in water. %U https://www.ije.ir/article_71397_561c05e520a6eac31c360ad481db246d.pdf