A variational approach to modeling the vibration of timber joist floors
Abstract
We present a comprehensive variational model for the vibration of timber joist floors and a simple computer algorithm for finite, particularly rectangular, floors. We allow for floor constructions that are typical in the New Zealand context, consisting of edge-supported timber joists with flooring material above, often a suspended ceiling below with absorptive material in the cavity, and a range of joint types such as gluing or nailing. The model and algorithm are structured in such a way that a component can easily be either added to, or removed from, the structure. Hence the configuration may be made progressively more complex from the simplest floor-joists type to floor-joists-ceiling with cavity air and damper-spring connectors.
Reference
Colin Fox; Hyuck Chung. (2005). A variational approach to modeling the vibration of timber joist floors. The Journal of the Acoustical Society of America. https://doi.org/10.1121/1.4787181
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