Dynamic Characteristics Analysis of a Seismic Vibrator-Ground Coupling System

المؤلفون المشاركون

Liu, Jun
Li, Gang
Zhi-Qiang, Huang
Shi-De, Li
Xian, Liu
Kai, Zhang

المصدر

Shock and Vibration

العدد

المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-12، 12ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2017-07-04

دولة النشر

مصر

عدد الصفحات

12

التخصصات الرئيسية

هندسة مدنية

الملخص EN

A mathematical model to describe the seismic vibrator and ground coupling is proposed based on dynamic analyses of the vibrator baseplate structure and properties of soil.

This mathematical model is solved using Newmark’s method.

It produces reasonable results and the trend of amplitude envelope follows the experimental data.

With this model, characterization of the vibrator-ground coupling is performed.

Modal analysis study shows that the motions between the vibrator reaction mass and baseplate experience a combination of a first-order vibration mode and a second-order vibration mode.

The corresponding frequencies of two vibration modes are located at 2.77 Hz and 488.7 Hz, respectively.

As the frequency goes up, the motion behavior of the reaction mass and baseplate is dominated by the second-order vibration mode.

It is realized that the second-order vibration mode is responsible for the phase difference between the input sweep signal and the output force signal.

Furthermore, the impact of the coupling system parameters on the vibrator output force is also investigated.

It is observed that the vibrator output force decreases as the sweep frequency increases.

The weight ratio of the reaction mass and the baseplate has an impact on the vibrator output force.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Liu, Jun& Zhi-Qiang, Huang& Li, Gang& Shi-De, Li& Xian, Liu& Kai, Zhang. 2017. Dynamic Characteristics Analysis of a Seismic Vibrator-Ground Coupling System. Shock and Vibration،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1204157

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Liu, Jun…[et al.]. Dynamic Characteristics Analysis of a Seismic Vibrator-Ground Coupling System. Shock and Vibration No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1204157

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Liu, Jun& Zhi-Qiang, Huang& Li, Gang& Shi-De, Li& Xian, Liu& Kai, Zhang. Dynamic Characteristics Analysis of a Seismic Vibrator-Ground Coupling System. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1204157

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1204157