搜索结果: 1-6 共查到“natural frequency”相关记录6条 . 查询时间(0.171 秒)
Assessment of structural damage using natural frequency changes
Damage assessment Damage detection Strain energy Modal analysis Natural frequency
2012/2/24
The present paper develops a new method for damage localization and severity estimation based on the employment of modal strain energy. This method is able to determine the damage locations and estima...
Comparing of the HAM with the HPM in finding the natural frequency of a nonlinear oscillating system
Frequency Nonlinear oscillation Series solutions
2010/9/13
In this article, we use an efficient analytical method called homotopy analysis method (HAM) to derive the frequency of a nonlinear oscillating system. Unlike the perturbation method, the HAM does not...
Explicit approximate solution for finding the natural frequency of the motion of pendulum by using the HAM
Frequency Nonlinear oscillation Series solutions
2010/9/13
In this work, we use a powerful analytical method called homotopy analysis method (HAM) to derive the frequency of a nonlinear oscillating system. Unlike the perturbation method, the HAM does not requ...
A VIBRATION FINDING SURVEY OF EXISTING STEEL PENSTOCKS AND NATURAL FREQUENCY CALCULATION FORMULAE
steel penstock pressure pulsation resonance numerical analysis
2009/1/4
When a momentary pressure pulsation takes place in a turbine, and its frequency coincides with the natural frequency of a steel penstock, resonance occurs resulting in noticeable vibration. While the...
A VIBRATION FINDING SURVEY OF EXISTING STEEL PENSTOCKS AND NATURAL FREQUENCY CALCULATION FORMULAE
steel penstock pressure pulsation resonance numerical analysis
2008/12/31
When a momentary pressure pulsation takes place in a turbine, and its frequency coincides with the natural frequency of a steel penstock, resonance occurs resulting in noticeable vibration. While the...
Estimation of Vs profile using its natural frequency and Rayleigh-wave dispersion characteristics
Estimation Vs profile natural frequency Rayleigh-wave dispersion characteristics
2010/1/27
The evaluation of the natural frequency of random Vs profiles before analyzing the fundamental Rayleigh-wave dispersion characteristics is proposed in this paper. The inclusion of this parameter optim...