In this part, the characteristics of transient responses of flexible rotor systems with arbitrarily distributed mass on isotropic or anisotropic supports passing through several critical speeds seguencially are examined. Here, the current knowledge of rotor dynamics on the eigenproblem of damped free whirling vibration, the generaliged damped mode theary, the transient forced vibration and so on combined with KBM asymptotic method in the nonlinear vibration theory is employed and extended.

作者綜合運(yùn)用并引伸推廣轉(zhuǎn)子動(dòng)力學(xué)關(guān)于阻尼自由回旋振動(dòng)的特征問(wèn)題A在线免费看、廣義阻尼模態(tài)理論99热精品免费、瞬態(tài)強(qiáng)廹振動(dòng)等現(xiàn)代理論和方法夜间福利在线看黄，結(jié)合非線性振動(dòng)理論中的KBM漸近法成年免费a级毛片免费看91青，提出自己獨(dú)創(chuàng)見(jiàn)解和覌點(diǎn)高清无码免费在线视频专区，成功地建立起正回旋和逆回旋兩種情況下轉(zhuǎn)子通過(guò)臨界點(diǎn)的瞬態(tài)振動(dòng)一階微分方程組在线色影视，可以在臨界點(diǎn)的鄰域內(nèi)從事方程的數(shù)值積分計(jì)算。

According to elastodynamics theory, the dynamic model of machining the slender rod is founded by axial turn -milling, the calculation formula of the natural frequencies and the main vibration mode are ob- tained, and the dynamic response of the slender rod forced vibration is studied under simple harmonic excitation.

根據(jù)彈性體動(dòng)力學(xué)理論，建立軸向車銑細(xì)長(zhǎng)桿的動(dòng)力學(xué)模型黄色十八岁网站，得到了各階固有頻率和主振型的計(jì)算公式黄色视频一区二区三区在线看，分析了在簡(jiǎn)諧激勵(lì)下細(xì)長(zhǎng)桿強(qiáng)迫振動(dòng)的動(dòng)力學(xué)響應(yīng)。

The modal test results about empty electrodynamic vibration shaker is used in the finite element model of frequency and vibration mode amendment.

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The flexible body concept is introduced to constitute the virtual prototyping continuum model of the longitudinal vibration and the transverse vibration of the belt conveyor in the thesis, and the two virtual prototyping models are analyzed in an emulation mode.

本文將柔性體概念引入帶式輸送機(jī)縱向振動(dòng)連續(xù)模型虛擬樣機(jī)和帶式輸送機(jī)橫向振動(dòng)虛擬樣機(jī)的建立中成年欧美1313www色，并對(duì)這兩種虛擬樣機(jī)進(jìn)行了振動(dòng)仿真分析。

The result indicates that it is not excellent beyond the current research method except obtaining the more dynamic parameters, although the virtual prototyping continuum model of the longitudinal vibration and the transverse vibration of the belt conveyor is analyzed in an emulation mode.

分析結(jié)果顯示亚洲全网黄色网站，雖然建立帶式輸送機(jī)縱向振動(dòng)連續(xù)模型和橫向振動(dòng)連續(xù)模型虛擬樣機(jī)進(jìn)行仿真分析在线视频产自拍，可以比現(xiàn)有方法得到更多的動(dòng)態(tài)參數(shù)，但是欧美一级精品影院，并不能超越現(xiàn)用方法的研究范圍A级黄片小视频免费观看。

Vibration model is established and inherency frequency and main vibration type are obtained, vibration characteristic response is analyzed. Mode respond and harmonious respond of suspension system with package cushioning are analyzed with the help of ANSYS 6.0. At last, design method of suspension system with package cushioning is researched and a detailed design example is provided.

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Having determined the response of each vibration mode to the excitation, it is necessary to obtain the response of the structure by combining the effects of each vibration mode.

已經(jīng)確定了每個(gè)振動(dòng)模態(tài)對(duì)激勵(lì)的響應(yīng)之后，可通過(guò)綜合每個(gè)振動(dòng)模態(tài)的響應(yīng)效果來(lái)獲得結(jié)構(gòu)的響應(yīng)国产色一区二区免费视频。

The PZT plates were polarized in thickness direction. By using the deformation in the plane perpendicular to the direction of polarization, the rotation around Z axis was generated when the torsional vibration around Z axis mode was excited. And the rotation around X axis or Y axis was generated by combining the longitudinal vibration mode and the bending vibtration mode.

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The distribution of gear's contact stress, root stress, and contact engagement line in the engagement situation of gear pairs, were obtained on the base of explicit integration method. 3. Adopting the method of system matrix, the torsional vibration differential equation of general shafting was gained. The simple harmonic forms of excitation torque under the normal combustion or piston flameout of in-line engine and v-type engine were analysed. The decoupled algorithm of free vibration and forced vibration and the solution to the vibration damper's energy of resistance and the off-resonance calculation were studied. The sensitivity formulations of the natural frequency and vibration mode to physical parameters of system were derived by solving the eigenvalue problem. These sensitivity formulations provided the theoretical base for the dynamic modification of structure.

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