| 1. | Tuning out the natural frequency of the turbocharging system
涡轮增压系统自然频率解谐 |
| 2. | To determine the natural frequency of square plates with the reciprocal theorem of work
用功的互等定理求解矩形薄板的自然频率 |
| 3. | Keywords : micro - gyroscope , silicon single crystal , three - axis angular - rate sensing , natural frequency and mode shapes
关键词：微型陀螺仪、矽单晶、三轴角速率感测、振动自然频率与模态。 |
| 4. | Paper and board - testing of cores - determination of natural frequency and flexural modulus by experimental modal analysis
纸和纸板.芯层试验.通过试验模型分析法对自然频率和弯曲模量的测定 |
| 5. | 2 low frequency resonance , spanning 40 - 100hz , occurs beside the track . the wheel rail interaction creep force and the sleepers natural frequency cause this
（ 2 ）列车行进之轮轨激振力频率与基钣自然频率发生共振产生40 - 100hz之低频噪音。 |
| 6. | The results of this work are valid for under - damping modes provided that the sampling rate is sufficiently higher than the natural frequencies of interest
本文提出的理论解在假设取样频率高于自然频率数倍以上时可适用于所有次阻尼的模组，因此较过去的研究结果更为完整。 |
| 7. | It is considered that when the dominant frequencies of these dynamics components are close to the natural frequencies of the friction system , the system will show a resonant behavior and emit associated noise
当动态摩擦力频率接近摩擦系统的自然频率时，系统就发生摩擦振动从而发射噪声。根据这个假设，从摩擦学的角度解释了摩擦噪声一般发生在摩擦系数比较大的区域的原因。 |
| 8. | Then , the hilbert transform is applied to each modal response to obtain the instantaneous amplitude and phase angle time histories . a linear least - square fit procedure is proposed to identify the natural frequency , damping ratios , physical mass , damping and stiffness matrices from instantaneous amplitude and phase angle for each modal response
然后对各阶模态响应进行hilbert变换，得到瞬态幅值和相位角的时间历程，再运用线性最小均方拟合来识别自然频率、阻尼比、质量、刚度和阻尼矩阵。 |
| 9. | A dynamical system is built which is satisfied to lyapunov function whose energy function is penalty function in augmented lagrange multiplier method . the dynamical system is global stable , and its stable solution is the optimization solution of sub - problem in augmented lagrange multiplier method according to lasalle invariance principle . finally a complete optimization algorithm is developed
针对这种工业过程，本文基于一个lqr的性能指标（本性能指标和衰减系数和自然频率密切相关） ，提出应用本文提出的mmlaax优化算法，对不确定工业过程进行鲁棒pto控制器的设计，取得令人满意的效果。 |
| 10. | The torsional interaction from the electrical couplings among the generating sets is presented and the influence of the natural torsional frequency of the generating sets on the torsional oscillation characteristics is described . the torsional dynamics between identical parallel turbine - generators are deduced as well as that between non - identical parallel turbine - generators . then the basic principle of equivalent simplification of generating units for different operational condition is summarized
( 2 )介绍了多机电力系统机组间电气耦合对轴系扭振特性的影响，以及机组自然频率与机组扭振相互作用的关系，并对复杂系统中并列运行的相同发电机和不同发电机间的扭振相互作用进行了分析，归纳了不同运行条件下机组等值简化的基本原则。 |
