In chapter three, the new concepts of the bifurcation point and asymptotic bifurcation point of compact continuous operators in Menger PN-spaces are introduced. Some sufficient conditions for the existence of the bifurcation point and asymptotic bifurcation point are obtained. And the problems on the intrinsic value and intrinsic element of compact continuous operators are studied in Menger PN-spaces. A series of theorems on the existence of the intrinsic value and intrinsic element are obtained.

第三章，在概率賦范線性空間中提出非線性算子的歧點(diǎn)和漸近歧點(diǎn)的新概念永久操，獲得了非線性算子存在歧點(diǎn)和漸近歧點(diǎn)的充分條件被强制伦A片在线观看；討論了Menger概率賦范線性空間中非線性算子的固有值和固有元問(wèn)題，得到了非線性算子存在固有值和固有元的一系列充分條件私库AV操一操人人操。

The effect of tribology factors on bearing vibration is studied experimentally. AR model and WPT are used to processing the normal arid abnormal signals. The results are as follows:1. The vibration of ball bearings is caused by the tribology action of contact pairs of ball and ring races and has the essential of tribo-dynamics. Any factors affecting the tribology characteristics of contact pairs will affect vibration and noise of bearings consequently.2. Vibration characteristics of bearing keep almostly unchanged with the increasing of axial load expecting the increasing of nature frequencies. When radial load increasing with axial load unchanged, nature frequencies keep unchanged but some new vibration peaks appears in the spectrum.3. Vibration amplitudes are damped and nature frequency are enhanced with sufficient lubrication. Vibration and noise of bearings increase obviously and roar can happen and the contact surfaces scratch slightly under insufficient and unclean lubrication state. Bearing will be disabled in a few minutes without any lubrication.4. Bearing vibration is unstable under low speed. With the speed increasing, the vibration become stable and natural frequencies increase slightly but the amplitudes increase apparently.5. Bearing vibration can be excited only by some harmonics ofwaviness without lubrication and by all harmonics with lubrication based on the theoretical analysis.6. The nature frequencies of ball bearings decrease with the increasing sizes. When international clearance increasing, nature frequencies decrease in radial and increase in axial and angular and the amplitudes increase in radial and decrease in axial and angular. When the number of balls increasing, nature frequencies increase and amplitudes decrease. When the pitch diameter increasing, axial nature frequency increase and others nearly keep no change. When outer race groove curvature radius increasing, nature frequencies increase in radial and decrease in axial and angular and amplitudes keep no change in radial and increase in axial and angular. When inner race groove curvature radius increasing, nature frequencies decrease and amplitudes increase.7. The distortion in amplitude and frequency components of bearing vibration signals picked up by the present probe measurement method is founded and right conclusions cannot be achieved by the signals. When accelerometer is rigidly screwed with steel stud onto a flat outer surface of a ball bearing, vibration signal can be got without distortion and the reliability of research on bearing vibration is assured.8. AR model is suitable for large samples of bearing vibration signals, square root of length of samples can be used as the upper limitation of order determination and the FPE order selection criterion is effective. Many advantages of AR spectrum are founded over the classical based on FFT.9. Time-Frequency analysis is necessary for abnormal noise of ball bearings. WPT overcomes the principle shortcomings of STFT and proved to be a best tool to process the abnormal signals.

理論分析和試驗(yàn)研究表明： 1球軸承振動(dòng)是鋼球—滾道接觸副中的各種摩擦學(xué)作用引起的日韩孕妇自拍视频网站大全在线观看，具有摩擦動(dòng)力學(xué)的本質(zhì)，任何對(duì)接觸副的摩擦學(xué)特性有影響的因素都將對(duì)球軸承的振動(dòng)和噪聲特性產(chǎn)生影響蛋蛋福利导航； 2中心軸向載荷作用下日本www免费观看，載荷增大使球軸承的固有振動(dòng)頻率升高，載荷越大同樣的載荷增幅引起的頻率升幅減小日韩欧美女自拍图片视频网站在线观看，足夠大的中心軸向載荷作用下載荷的變化對(duì)球軸承振動(dòng)的頻率特性不會(huì)產(chǎn)生明顯的影響黄色网址免费呀； 3軸向和徑向聯(lián)合載荷作用下，徑向載荷不大時(shí)球軸承振動(dòng)的固有頻率基本不變国产第一视频毛片，但是可能引起變剛度激勵(lì)的非線性振動(dòng)思思热在线免费观看，出現(xiàn)新的頻峰，過(guò)大的徑向載荷將使部分鋼球脫離接觸，使球軸承的振動(dòng)和噪聲呈現(xiàn)不穩(wěn)定狀態(tài)欧美黄色视频欧美黄色视频； 4潤(rùn)滑對(duì)球軸承的振動(dòng)和噪聲特性有重要的影響欧美喷水大屁股，良好的潤(rùn)滑對(duì)振動(dòng)有明顯的抑制作用，潤(rùn)滑不充分時(shí)国产专区系列，振動(dòng)和噪聲的水平會(huì)有明顯增高大陆视频国产精品短视频，一定條件下還會(huì)激發(fā)接觸副中的諧振，發(fā)出嘯聲色库视频，造成接觸表面的傷害清纯美女被操，無(wú)潤(rùn)滑干接觸時(shí)，短時(shí)的運(yùn)轉(zhuǎn)就會(huì)損傷接觸副表面99re视频这里只精品，使振動(dòng)和噪聲迅速增大久久久久久久久久久久网，并隨時(shí)可能引發(fā)嚴(yán)重的磨損和卡滯失效；接觸副潤(rùn)滑良好時(shí)亚洲欧美性爱自拍，油膜的"剛化效應(yīng)"使球軸承振動(dòng)的固有頻率有所提高黄色视频久久免费，潤(rùn)滑劑中含有彌散性污濁時(shí)，振動(dòng)的幅度總體升高国产精品自拍自产，但彌散性污濁不會(huì)改變球軸承振動(dòng)的頻率特性美女羞羞高潮视频免费首页；浙江大學(xué)博士學(xué)位論文：球軸承振動(dòng)的研究 5低速時(shí)，球軸承振動(dòng)的基本特征呈現(xiàn)不穩(wěn)定狀態(tài)一级黄啊啊啊啊网站，隨著轉(zhuǎn)速的提高在线看日本，球軸承振動(dòng)的頻率特性趨于穩(wěn)定，固有頻率頻峰升高一级性爱视频免费； 6理論分析表明人人操人人插人人搞，干接觸時(shí)鋼球和滾道表面波紋度的某些諧波分量能激勵(lì)球軸承的振動(dòng)，振動(dòng)的幅值與諧波幅值成正比18岁进看的黄色网站，實(shí)際球軸承中鋼球的分布不可能完全均勻火热福利视频导航，波紋度的激勵(lì)作用會(huì)隨時(shí)發(fā)生；潤(rùn)滑接觸的分析表明人人操黄色，波紋度的任意諧波分量均能激勵(lì)球軸承的振動(dòng)黄网站中文字幕； 7球軸承的幾何和結(jié)構(gòu)參數(shù)分析表明，球軸承尺寸越大九九精品在线观看，徑向官方网a片视频播放、軸向和角振動(dòng)的固有頻率越低；鋼球中心圓直徑增大A∨女人网，球軸承的徑向和軸向振動(dòng)的固有頻率基本不變可以看的黄色网页，角振動(dòng)的固有頻率有所上升，振動(dòng)的幅頻特性基本不變免费人成在线观看网址；徑向游隙加大使球軸承的徑向振動(dòng)固有頻率降低又黄又大又粗的视频，軸向和角振動(dòng)的固有頻率有所升高，徑向振動(dòng)幅頻特性的幅值升高国产又狠又黄精品视频，而軸向和角向降低隐私偷拍偷窥AV合集；鋼球的數(shù)量增多使球軸承振動(dòng)的固有頻率上升，幅頻特性的幅值下降特级黄色一级片，徑向振動(dòng)的幅值下降最為明顯91精品网站；外圈溝曲率半徑系數(shù)增大使球軸承徑向振動(dòng)的固有頻率升高，軸向和角振動(dòng)的固有頻率降低又硬又大又爽又无遮挡的视频，徑向幅頻特性基本不變男女晚上做爽爽的视频无遮挡，軸向和角向幅頻特性幅值升高；內(nèi)圈溝曲率半徑系數(shù)增大使徑向国产精品大陆、軸向和角振動(dòng)固有頻率均下降www.免费视频在线观看，振動(dòng)幅頻特性的幅值均有升高； 8試驗(yàn)對(duì)比表明国产乱轮性爱，傳感器采用探針式安裝時(shí)国产Av人人澡夜夜澡人人爽，由于探針接觸副接觸特性的影響，鋇(量得到的球軸承振動(dòng)信號(hào)有失真欧美性爱男人皇宫，采用專門設(shè)計(jì)和制作的試驗(yàn)球軸承又太又粗一进一出直流白水，以固定式安裝加速度計(jì)，首次測(cè)量得到了球軸承振動(dòng)的真實(shí)信號(hào)8090yy成年在线看片A片，通過(guò)對(duì)振動(dòng)信號(hào)的分析免费无码毛片A视频，驗(yàn)證了球軸承振動(dòng)的理論模型； 9)基于時(shí)間序列分析的AR模型適用于大樣本球軸承振動(dòng)信號(hào)的分析殴美A片免的视频刺激的，以樣本長(zhǎng)度的均方根值作定階上界国内自拍日韩经典在线观看视频，F(xiàn)PE做判階準(zhǔn)則，給出的AR譜光滑日韩在线第二页，頻率分辨率高亚洲444444k在线观看，是球軸承振動(dòng)分析的簡(jiǎn)便而可靠的手段； 10以時(shí)頻域分析的小波包變換分析球軸承異音信號(hào)能夠比較好地定位和聚焦異音發(fā)生的時(shí)間91人妻PORNY九色最新社区，時(shí)間間隔国产自，頻率范圍，同樣是球軸承振動(dòng)分析的可靠的手段丝袜剧情国产AV办公室，可用作球軸承故障診斷技術(shù)国产美女一级黄色牲交视频。

This is called the intrinsic value method.

這稱固有值方法。

He existence and stability of the nontrivial and nonnegative steady-state solution of an ecological predator-prey system with the reaction-diffusion term are discussed.

應(yīng)用漸近展開的方法構(gòu)造生物學(xué)里提出的一類具有反應(yīng)擴(kuò)散項(xiàng)的捕食者─食餌系統(tǒng)的非平凡非負(fù)定態(tài)解91插插插插，并應(yīng)用固有值的解析攝動(dòng)理論對(duì)所獲得的非平凡非負(fù)定態(tài)解進(jìn)行了穩(wěn)定性分析亚洲最大偷拍视频。

This paper sets up the fixed point theorems for cone stretching or compression and more extensive fixed point theorems for cone stretching or compression in their normal forms on the condensing mapping.

本文建立凝聚映象的錐拉、壓不動(dòng)點(diǎn)定理和更為廣泛的范數(shù)形式凝聚映象的錐拉一级迷奸影院、壓不動(dòng)點(diǎn)定理以及對(duì)非錐映象的表現(xiàn)形式一区二区三区亚洲欧美日韩人色，然后利用所得的結(jié)果來(lái)研究凝聚算子的固有值的全局特征和算子方程的非零解并用到Y(jié)pbIcoH算子上。

Under identical amplitude, when the inherent frequencies equal to the load's frequencies for the structure begin to sympathetic vibration, different point has different displacement which represent under the same frequency ,different point has different values.

在管道結(jié)構(gòu)上不同點(diǎn)，相同的固有頻率處對(duì)激勵(lì)的響應(yīng)值是不同的国产欧美一区；在管道結(jié)構(gòu)上的同一點(diǎn)上无码秒播成人影视网站大全免费，不同的固有頻率處對(duì)激勵(lì)的響應(yīng)值也是不同的。來(lái)源：06c6Aa2BC論文網(wǎng)www.abclunwen.com

In the part of the vibration experiments and analysis, firstly, used the simple-beam theory to estimate the natural frequency of the beam of the 20-headed computerized embroidery machine.secondly, measured the beam of its low rank natural frequency, the beams horizontal vibrating acceleration amplitude, speed amplitude and the displacement amplitude in different rev and different turn parts. Found that it is sympathetic vibration, which bring on the thread-broken rate rise rapidly. On this base, established the finite element analysis modle of the vibrating beam, and took on hamonic analysis and modal analysis with the mold. The rusult of test and analysis offer the basis for farther improvement of the computerized embroidery machine.

振動(dòng)分析部分国产视频十一区，首先由簡(jiǎn)單梁理論出發(fā)人人操人人干人人莫，對(duì)橫梁的固有頻率進(jìn)行估算；接著通過(guò)測(cè)振儀器對(duì)20頭電腦刺繡機(jī)橫梁進(jìn)行了試驗(yàn)?zāi)B(tài)分析和不同工況振動(dòng)測(cè)試99re66精品视频在线观看；獲得了橫梁前四階固有頻率和模態(tài)振型人人操人人干91，以及在不同工作轉(zhuǎn)速、不同回轉(zhuǎn)部件下橫梁振動(dòng)的加速度幅值97碰碰碰无码视频、速度幅值和位移幅值日本爱爱高清视频；找到了橫梁振動(dòng)加劇的原因——共振；在此基礎(chǔ)上建立了符合實(shí)際情況的橫梁有限元模型影音先锋性爱资源站，對(duì)模型進(jìn)行了模態(tài)和諧響應(yīng)計(jì)算蝌蚪久久，證實(shí)了模型的可靠性，為下一步的改進(jìn)設(shè)計(jì)提供了依據(jù)男人禁黄色视频。

The phase of ω0 frequency fluctuates tempestuously. The resonance peaks of flexural and torsional vibrations response are present at 2/3ω0 1/2ω0 1/3ω0 and 1/4ω0 with three kinds cracked rotor models. Near 1/2ω0 frequency, quasi-periodic and chaotic motions maybe appear. Periodic, quasi-periodic and chaotic motions show on alternately when the rotating speed is near to 2/3ω0.Combined step-by-step integral method with traditional transfer matrix method, an increment transfer matrix method is put forward.

研究結(jié)果表明：各種故障情況下国产东北老妓女视频在线播放网站，華北電力大學(xué)博士學(xué)位論文彎振和扭振之間都存在禍合關(guān)系，但彎扭禍合振動(dòng)一般不會(huì)威脅機(jī)組安全運(yùn)行：在葉片丟失或滑環(huán)飛脫故障時(shí)国产又粗又长又硬视频，將產(chǎn)生很大的彎振淫荡的网站，同時(shí)各轉(zhuǎn)子扭振也將被激發(fā)出來(lái)，它以工倍頻和前三階固有頻率為主黄色视频在线观看官网；在各種電氣故障情況下911国产在线，各轉(zhuǎn)子都很快被激勵(lì)出較大幅值的扭振來(lái)，相應(yīng)各轉(zhuǎn)子彎振也發(fā)生一定的變化2020亚洲精品极品色在线，但它的變化明顯滯后于扭振人人射人人摸人人干，扭振和扭矩主要以前三階固有頻率為主。

The rules of photo bioactivities are: Without illumination, the tested xanthene derivatives showed almost the same level of inherent toxicity to the same organism, which showed the inherent toxicity of xanthene derivatives were primarily dependent on the structure of parent molecule. Upon illumination, the photosensitizers showed obvious phototoxicity to all organisms. The xanthene derivatives showed stronger phototoxicity to Gram-positive bacteria. With the increasing number of halogen substituents, the singlet oxygen yields increased and the phototoxic activity increased too.

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The energy eigenvalues and eigenstates are all obtained in our approach.

在此積分方程式解法中免费的三级黄网站，吾人可得到所有得能量固有值與能量固有態(tài)色视频在线视频一区二区。

degenerate eigenvalue：退化固有值;退化特征值

退化微分方程 degenerate differential equation | 退化固有值;退化特征值 degenerate eigenvalue | 退化區(qū)間 degenerate interval

eigenspace：固有空間;特征空間

固有函數(shù)展開式;特徽;函數(shù)展開式 eigenfunction expansion | 固有空間;特征空間 eigenspace | 固有值;特征值 eigenvalue

eigenvalue：固有值

ehv 超高電壓 | eigenvalue 固有值 | eigenvalue problem 特盞問(wèn)題

generalized exponential valuation：廣義指數(shù)賦值

廣義本征值;廣義固有值 generalized eigenvalue | 廣義指數(shù)賦值 generalized exponential valuation | 廣義階乘 generalized factorial

proper value：固有值

propelling nozzle 推力噴管 | proper value 固有值 | property 性質(zhì)

proper value of matrix：方陣的特征值(固有值)

特征值;固有值 proper value | 方陣的特征值(固有值) proper value of matrix | 特征(固有)向量 proper vector

eigenwerte; proper value; eigen value：固有值;特性值

特性向量 eigen vector | 固有值;特性值 eigenwerte; proper value; eigen value | 八十行卡 eighty-column card

eigentone：固有音

eigenfunction expansion ==> 特征函數(shù)展開式,特征函數(shù)展開式 | eigentone ==> 固有音 | eigenvalue ==> 本征值=>固有値

matrix eigenvalues：方陣特征值;矩陣固有值

矩陣微分方程 matrix differential equation | 方陣特征值;矩陣固有值 matrix eigenvalues | 方陣固有元 matrix eigenvector

multiple eigenvalues：多重固有值

多重點(diǎn)曲線 multiple curve | 多重固有值 multiple eigenvalues | 多級(jí)誤差 multiple error