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Efficiency of Dynamic Vibration Dampers for Massive Structures on Non-Rock Bases
Soil Mechanics and Foundation Engineering ( IF 0.8 ) Pub Date : 2021-04-06 , DOI: 10.1007/s11204-021-09705-3
O. P. Nesterova , A. M. Uzdin

The possibility of dynamic damping of vibrations is considered for massive structures on non-rock bases. The main feature of the structures under consideration is the large dissipation of vibrational energy due to its radiation into the base. The following models of the soil base are considered: normative model used in Russian norms for calculating foundations, a homogeneous, elastic, inertial half-space model, and the Il’ichev-Anik’ev inhomogeneous, inertial, half-space model. It is shown that the well-known recommendations for tuning dampers in damped systems are unsuitable for the models used for bases. The dependences of the damper tuning and damping on the deformation modulus of the base and on the structure--base interaction parameters are obtained.



中文翻译:

非岩石基础上大型结构动力减振器的效率

对于非岩石基础上的大型结构,考虑了动态阻尼振动的可能性。所考虑的结构的主要特征是振动能量由于其辐射到基体中而大量散失。考虑以下土壤基础模型:俄罗斯规范中用于计算基础的规范模型,均质,弹性,惯性半空间模型和Il'ichev-Anik'ev非均质,惯性半空间模型。结果表明,针对阻尼系统中的阻尼器进行调校的众所周知的建议不适合用于基座的模型。获得了阻尼器调谐和阻尼对基础变形模量以及结构-基础相互作用参数的依赖性。

更新日期:2021-04-06
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