Modeling of energy transfer and parameter effects on it of a vibrator-ground system
Modeling of energy transfer and parameter effects on it of a vibrator-ground system
复制标题
振动器-地面系统能量传递及其参数影响的建模
DOI：
10.1177/1369433220933982
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发表时间：
2020-06
影响因子：
2.6
通讯作者：
Xiaobo Hu
中科院分区：
文献类型：
--
作者：
Gang Li;Wen Qi;Zhiqiang Huang;Zhifei Tao;Guo Li;Xiaobo Hu
传递到地面的能量真正体现了地震振动器的性能。因此，研究振动器-地面系统的能量传递及其参数对系统能量传递的影响至关重要。为此，基于半空间理论建立了考虑频率变化的振子-地系统模型，并创新性地提出了能量传递的计算方法。结果表明：在3 ~ 200 Hz频段内，液压力作用于振动器-地面系统的总能量为3.156×105 J，其中9.11%的能量传递给了地面；此外，还研究了结构参数和土体参数对能量传递的影响。结果表明，轻的反应质量可以显著提高总能量，但较重的反应质量会产生更多的地面能量。质量小的底板不仅能使振动器均匀地传递能量，而且能在100 Hz以上产生更多的地能量。较大的底板面积可以改善底板与地面的相互作用，向地面传递更多的能量。对于土壤对能量传递的影响，低频频段地面能量主要由土壤弹性模量主导，高频频段地面能量传递主要受土壤弹性模量和土壤密度的影响。
The amount of energy transferred to the ground truly represents the performance of the seismic vibrator. So, it is crucial to investigate the transfer of energy in the vibrator-ground system and how parameters affect it. For this purpose, a model of vibrator-ground system considering frequency change is developed based on half-space theory, and methods of calculating energy transfer is innovatively proposed. Results show that the total energy done by the hydraulic force on the vibrator-ground system in the frequency band of 3–200 Hz is 3.156×105 J, and 9.11% of the energy is transferred to the ground. In addition, effects of structural parameters and soil parameters on energy transfer are carried out. It is concluded that lightweight reaction mass can significantly increase the total energy, but heavier reaction mass generates more ground energy. Baseplate with small mass not only helps the vibrator to transmit energy uniformly but also generates more ground energy above 100 Hz. Larger baseplate area can improve the baseplate-ground interaction to transfer more energy to the ground. For the effects of soil on energy transfer, the ground energy in low-frequency band is mainly dominated by soil elastic modulus, and both elastic modulus and density of soil have great effects on energy transferred to ground at high frequencies.
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影响因子：
2.6
作者：
G. J. M. Baeten;Jacob T. Fokkema;Anton Ziolkowski
通讯作者：
G. J. M. Baeten;Jacob T. Fokkema;Anton Ziolkowski
DOI：
10.3997/2214-4609.201410810
发表时间：
1991-05
期刊：
--
影响因子：
--
作者：
D. Reust
通讯作者：
D. Reust
DOI：
--
发表时间：
2016
期刊：
--
影响因子：
--
作者：
Huang Zhiqiang;Li Gang;Ding Yaping;Tao Zhifei;Hao Lei
通讯作者：
Huang Zhiqiang;Li Gang;Ding Yaping;Tao Zhifei;Hao Lei
影响因子：
0.6
作者：
Zhen Chen;Zhiqiang Huang;Dongyang Li;Shuang Jing;Tao Zhifei
通讯作者：
Zhen Chen;Zhiqiang Huang;Dongyang Li;Shuang Jing;Tao Zhifei
影响因子：
2.6
作者：
Zhouhong Wei;M. Hall;T. Phillips
通讯作者：
Zhouhong Wei;M. Hall;T. Phillips