These results are valuable reference for the experiment of parametric excitation in a quadrupole trap. 这些结果对四极阱参变激发的实验有较好的参考价值。
Theory of the Parametric Excitation of Spin Waves and Acoustic Waves in Ferrites 铁氧体中自旋波声波参量耦合激发理论
Nonlinear Dynamic Characteristics of Electrostatically Actuated MEMS Resonant Sensors under Parametric Excitation 参数激励下静电驱动MEMS共振传感器的非线性动力特性研究
Nonlinear identification in frequency domain for parametric excitation system based on harmonic balance principle 基于谐波平衡的参激系统非线性参数识别频域法
The pure loss of stability, the parametric excitation and the broaching are the main reasons for capsizing of ships sailing in waves. 船舶在波浪中航行,纯稳性丧失、参数激振和横甩是造成船舶倾覆的主要原因。
Furthermore, the influences of the elastic collision rate on the temperature increase of the atom cloud in the process of parametric excitation are also addressed. 此外,还研究了弹性碰撞速率对参变激发过程中原子温度上升的影响。
Nonlinear Dynamic Analysis for the Coupled Structure of Cable-stayed Beam Subject to Fully Parametric Excitation 完全参数激励下索梁耦合系统非线性动力学分析
First Passage of a Two-Dimensional Airfoil Model Subject to Stochastic Parametric Excitation 二元机翼模型在随机参数激励下的首次穿越问题
By means of the parametric excitation of water waves in a Hele-Shaw cell, we report the existence of two new types of highly localized, standing surface waves of large amplitude. 这两种波的振幅比较大,而常用的振幅方程式只能描述小很多的振幅,因此科学家目前还无法解释表面的不稳定如何导致这些波的形成。
Periodic solutions for parametric excitation buckled thin plate system solved by homotopy analysis method 参数激励非自治薄板系统周期解的同伦分析方法
Bifurcation of a Two Degree of Freedom Nonlinear Vibrating System Subject to Parametric Excitation 参数激励两自由度非线性振动系统的分岔分析
The parametric excitation from platform heave motion and the fluid quadratic damping are considered in the mathematical model. 其数学模型既考虑由平台升沉运动而产生的中心激振,又计及流体平方阻尼力作用。
Stability Study on a Nonautonomous System with Quadratic Damping and Parametric Excitation 具有平方阻尼、中心激振非自治系统稳定性研究
It is found that the bifurcation behaviour of nonlinear systems under stochastic external and two kinds of parametric excitation differs from that of the relevant determinate systems. 从本文的研究中发现,非线性系统在随机外部激励以及两种不同的随机参数激励作用下,其分叉行为与确定性系统相比会有明显的变化。
Effects of Time Delay on Periodic Motions in Nonlinear System with Parametric Excitation 时滞对于参数激励系统周期运动的影响
This paper applied a non-Gaussian moment equation closure method to compute random responses of a two-degree-of-system with strongly nonlinear coupling under parametric excitation. 本文采用非高斯矩闭合方法计算了一个含参数激振的二自由度强非线性耦合系统受随机激励的响应方差。
Base on the lumped parameter model of the torsional vibration system of crankshafts with variable inertia and considering the nonlinear elasticity force and nonlinear dissipative force, a six-degree-of-freedom nonlinear dynamical equations with parametric excitation and compulsive force are deduced. 从旋转惯量变化的曲轴扭振系统的集总参数模型出发,同时考虑了系统的非线性弹性力和非线性耗散力,导出了参强联合作用下的六自由度非线性扭转振动微分方程。
Based on experimental investigation of thermoacoustic engines and former works, the theory of mechanism of parametric excitation of thermoacoustic resonance is gradually formed, and experimental mode analysis is put forward as an important research method. 本文在进行热声热机实验研究的实践过程中,在前人工作的基础上初步形成了热声谐振参数激励机理和实验模态分析研究思路,并对此进行了一些探索。
Nonlinear Motion Response of Ship under Parametric Excitation and Forced Excitation 船舶参数激励和强迫激励作用下的非线性运动响应
Bifurcation of a Class of Nonlinear Vibration System with Both Parametric Excitation and Forced Excitation 一类参数激励与强迫激励并存的非线性振动系统的分叉
Three-wave coupling process in parametric excitation is well studied under an isotropic, homogenous and collisionless ionospheric background. 讨论了在各向同性的均匀无耗电离层背景下激励参量不稳定性的三波耦合过程。
The stability with probability 1 of second-order linear systems with random parametric excitation and a certain class of second-order nonlinear systems with random parametric excitation is studied. 本文研究了二阶线性随机参激系统和一类二阶非线性随机参激系统的以概率1稳定性。
Parametric Excitation of Roll and Its Effect to Safety of Ship 船舶横摇的参数激励及对安全性的影响
Results of the mode analysis help are in favor of understanding theory of mechanism of parametric excitation of thermoacoustic resonance and optimizing the system. 研究结果有助于深入了解热声谐振管回热器的热致声的参数激励机理,同时也有助于提高热声效率、降低回热器温度阈值和优化系统设计。
Nonlinear Dynamical Analysis of High-Dimensional Systems with Parametric Excitation 高维参数激励系统的非线性动力学分析
So it is very important to research the higher dimensional nonlinear dynamical systems with parametric excitation. 所以研究高维参数激励非线性动力系统具有重要意义。
Dynamics and stability of a non-linear controlled system subject to parametric excitation 参数激励下非线性受控系统的动力学和稳定性
The method of averaging was used to yield a set of autonomous equations when the parametric excitation frequency is twice or the combination of the natural frequencies. 通过平均法,在运动参数激励频率为2倍固有频率或为两阶固有频率之和附近时得到了自治的常微分方程组。
Then, to replace small parametric excitation amplitude with another small parameter by equation transformation, the stable and unstable regions under arbitrary excitation amplitude can be determined. 然后,突破参数激励幅值的限值,通过表达式转换得到另一个小参数替换前者,确定任意激励幅值下的稳定区和不稳定区。
The bifurcation surface is obtained by using perturbation method and Floquet theory, in different parametric excitation amplitudes and forcedly excitation amplitudes. The real navigation condition for primary parametric rolling and capsizing is found. 采用摄动法和Floquet理论,求出了不同参数激励幅值和强迫激励幅值下的分岔曲面,确定了发生参数激励大幅横摇和船舶倾覆的航行参数。