scholarly journals Amplitude-frequency characteristics analysis for vertical vibration of hydraulic AGC system under nonlinear action

AIP Advances ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 035019 ◽  
Author(s):  
Yong Zhu ◽  
Pengfei Qian ◽  
Shengnan Tang ◽  
Wanlu Jiang ◽  
Wei Li ◽  
...  
Keyword(s):  
Vertical Vibration ◽  
Frequency Characteristics ◽  
Characteristics Analysis

Frequency Characteristics Analysis of Micro-Displacement Structure with Parallel Flexure Hinges

2016 ◽  
Vol 693 ◽  
pp. 141-145
Author(s):  
Jie Qiong Lin ◽  
Ming Ming Lu ◽  
Xiao Qin Zhou ◽  
Qiang Liu
Keyword(s):  
Natural Frequency ◽  
Structure Design ◽  
Frequency Characteristics ◽  
Test Results ◽  
Structure Parameter ◽  
Dynamics Modeling ◽  
Displacement Structure ◽  
Flexure Hinges ◽  
Modeling Analysis ◽  
Characteristics Analysis

Flexure hinges based micro-displacement structure has been widely used for micro-precision machinery, and the natural frequency characteristics analysis is one of the most important elements in the structure design. In this paper, natural frequency characteristics analysis of a micro-displacement structure with parallel flexible hinges is presented. The effects of each structure parameter to the natural frequency of the micro-displacement structure are simulation by dynamics modeling. The parameters can be divided into three categories, namely, parallel flexure hinges parameter, micro-displacement structure parameter and material parameter. Two micro-displacement structures using common materials are machined for frequency test. The test results of two micro-displacement structure verified the modeling analysis, and the natural frequency characteristics analysis in this paper can be referenced in micro-displacement structure design.

Frequency Characteristics Analysis of Transient Earth Voltages Aroused by Partial Discharge in Switchgears

2015 ◽  
Vol 10 (2) ◽  
pp. 321
Author(s):  
Yong Qian ◽  
Xiaoxin Chen ◽  
Yongpeng Xu ◽  
Peng Kong ◽  
Lin Wang ◽  
...  
Keyword(s):  
Partial Discharge ◽  
Frequency Characteristics ◽  
Characteristics Analysis

Frequency Characteristics Analysis for Magnetic Anomaly Detection

2021 ◽  
pp. 1-5
Author(s):  
Jiazeng Wang ◽  
Zekun Jiang ◽  
Junqi Gao ◽  
Shuxiang Zhao ◽  
Wenmin Zhai ◽  
...  
Keyword(s):  
Anomaly Detection ◽  
Magnetic Anomaly ◽  
Frequency Characteristics ◽  
Characteristics Analysis

Vertical Vibration Characteristics Analysis of Stand Rolls System in Six-Roll Cold Tandem Mill

2013 ◽  
Vol 470 ◽  
pp. 572-576 ◽  
Author(s):  
Ying Zhang ◽  
Li Liu ◽  
Pei Ming Shi ◽  
Bin Liu
Keyword(s):  
Cold Rolling ◽  
Natural Frequency ◽  
Rolling Mill ◽  
Rolling Process ◽  
Vertical Vibration ◽  
Vibration System ◽  
Cold Rolling Mill ◽  
Third Order ◽  
The Third ◽  
Characteristics Analysis

A dynamic model of seven degree of freedom for the vertical vibration of stand rolls system in a cold tandem mill is developed by Kinematics Theory. According to the actual parameters of a factory six-roll cold rolling mill, the influence of natural frequency and modes for rolling process is analyzed. It finds that the third-order and the six-order natural frequency play a role key in vertical vibration system. Combined with energy distribution of each part and flexibility of the modes analysis for vertical vibration system, it can avoid resonance of rolling process and optimize the parameters of stand rolls system by adjusting structural size appropriately. The above mentioned results have provided a reference for further research on Kinematics and structural optimization of six-roll cold tandem mill.

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