failure-frequency 中文意思是什麼

failure-frequency 解釋
失效頻率
  • failure : n 1 失敗 (opp success); 不及格。2 不足,缺乏;衰退;【醫學】衰竭。3 不履行,玩忽。4 破產,倒閉...
  • frequency : n. 1. 屢次,頻仍,頻繁。2. (脈搏等的)次數,出現率;頻度;【物理學】頻率,周率。
  1. Torsional interaction exists between hvdc converters and turbine - generators, and negative electrical damping provided by hvdc may cause subsynchronous oscillation ( sso ) that can lead to turbine - generator shaft failure and electrical instability at oscillation frequencies lower than the fundamental system frequency

    高壓直流輸電( high - voltage - direct - current - - - - hvdc )系統與臨近同步發電機組之間存在著扭振相互作用, hvdc的電氣負阻尼作用有可能引起機組在次同步頻率范圍的扭轉振蕩。
  2. And it investigates the appearance condition ( including joint, crack, eroding, corrosion, braking pole device rupture, crane - girder ' s gnawing railway and so on ) of the whole crane - girder system on the spot, at the same time, it also actually examines the stress of the beam, chemical ingredient, distortion and railway excursion, etc. through sampling, and based on the actually examined results, it checks and calculates the carrying capacity of crane - girder system. then, based on the investigating on the spot and the calculated result, it discusses the mechanism of fatigue failure of the upper part of welded steel crane - girder, analyses the reason of steel crane - girder in the high - frequency emerging the fatigue crack, institutes the strengthened method of damaged steel crane - girder of accurate packing up workshop of the primary mill plant. finally, it presents some advice and suggestions for the repairing and strengthening method of fatigue crack of upper part of steel crane - girder in the high - frequency

    針對包鋼初軋廠精整車間鋼吊車樑上部區域出現裂縫這一問題,本文首先綜述了國內外關于焊接鋼吊車樑上部區域疲勞裂縫的研究現狀;其次對整個吊車梁系統的外觀情況(包括連接、裂縫、腐蝕、銹蝕、制動桿件斷裂、吊車啃軌等)進行了現場調查,抽樣實測了梁的應力、化學成分、變形及軌道偏移等,根據實測結果,對吊車梁系統的承載能力進行了驗算;然後,根據現場調查及計算結果,探討了焊接鋼吊車樑上部區域疲勞破壞的機理,分析了重級工作制鋼吊車梁出現疲勞裂縫的原因,制定了初軋廠精整車間破損鋼吊車梁的加固方案;最後就重級工作制鋼吊車樑上部區域出現疲勞裂縫的修復與加固方案提出了一些意見和建議。
  3. This product, adopted pwm integrated circuit and mosfet, igbt that were imported from the overseas, has the following merits : quick - response, strong interfere - proof, stable frequency and voltage, low consumption when light loading, high efficiency and reliable performance, it can be applicable to the family use, pasture region, work with the wind generator and some other places where the power failure often occurs

    本品採用pwm (脈寬調制)集成電路和進口大功率mosfet 、 igbt等器件,具有應變快、抗干擾、自動穩定頻率和電壓、空載損耗低、效率高、性能可靠,是家庭,牧區,風力發電機配套以及其它野外經常停電地區提供交流電的必備的電器。
  4. According to the demand of 《 code for seismic design of building 》 ( gb50011 - 2001 ), furthermore, based on the experimental study of two 1 / 15 reduced - scale shear wall models under low frequency cyclic and reversed lateral loads, the interacting behavior of the r. c frame column and the shear wall is studied, the failure mechanism and energy dissipation mechanism of moderate and tall shear wall with r. c frame column are compared, the seismic behavior is evaluated by the comparison of strength, stiffness, ductility, restoring force characteristics as well as energy consumption ability. it was showed by the experimental results that the earthquake resistant energy dissipation ability of the shear wall with frame column is satisfactory

    因此,為了探討這類剪力墻結構的抗震性能,本文以我國現行《建築抗震設計規范》 ( gb50011 - 2001 )的要求為基礎,通過1 15的縮尺比,將一縱向框架一剪力墻原型結構中的剪力墻結構模擬為一個試驗模型並對其進行了偽靜力加載試驗,研究了墻板與邊框柱的共同工作性能,分析了帶邊框柱中高剪力墻的受力特點、破壞及耗能機理,並從承載力、剛度、變形、延性及恢復力特性等方面綜合評價了其抗震性能,得出了一些有益的設計理念和方法。
  5. Results the combination therapy had better results than those of conventional corticosteroid therapy, including the improvement of the clinical manifestations, immunological indexes, renal functions, decreasing of incidence of renal failure and the frequency of side - effects

    結果環磷酰胺沖擊療法聯合小劑量皮質類固醇激素療法組的臨床癥狀及免疫學指標的改善、腎功能的改善及腎衰率的降低均明顯優于單用激素療法組,且不良反應不大。
  6. The shahe pumped - storage power station with two 50mw reversible units has been in good conditions on general since it was put into operation, but there still were some defects, such as the failure of unit ' s contemporaneous device, the insufficient cooling water discharge and pressure, and the failure of static frequency converter and excitation overcurrent

    摘要沙河抽水蓄能電站兩臺50mw可逆式機組自投運以來,總體情況良好,但是也出現了一些缺陷,如機組同期裝置故障,機組冷卻水流量或壓力不足,靜止變頻器故障,勵磁過電流故障等。
  7. High - frequency protected channel testing instrument ( hfpcfi ) is a kind of facility used to test the failure of electric circuitry

    高頻保護通道測試儀是一種用於測試電力線故障信息並實現電路主保護的測試儀器。
  8. Furthermore, the article calculated cyclic times when the inner and outer circles of bearing 6202 meet and the failure frequency when the inner and outer circles and steel balls make simplex deficiency

    本文計算了6202軸承內外圈接觸循環次數和內外圈、鋼球產生單一缺陷時的故障頻率的大小。
  9. " the country dtt technical standard of china and frequency plan coordination with mainland authorities are interrelated issues. these technical issues are important because they affect the consumers as well as the success, or failure, of the future dtt industry, " said hoi - ying ( h. y. )

    亞洲電視有限公司高級副總裁鄺凱迎先生在今日(二月二十八日)的記者會上表示:中國內地採用的數碼地面電視制式,以及與內地機關的頻譜規劃協調是息息相關的議題。
  10. ( 4 ) the stress level, stress ratio, loading frequency and failure probability, which determine the fatigue life of concrete, are served as the input of the neural network while the fatigue life as output. the nonlinear relations of them are described wih the structure of neural network

    ( 4 )把決定混凝土疲勞壽命的應力水平、應力比、加載頻率和破壞概率作為神經網路的輸入,以疲勞壽命作為網路的輸出,用網路結構描述它們之間的非線性關系。
  11. The results of emulation and practical technical application indicate that time sequence components observed by empirical mode decomposition algorithm and frequency spec trum of them can reflect partial failure signature of gear adequately, at the same time, the weak signal feature can be easily extracted from them

    模擬研究及實際工程應用表明,採用經驗模式分解演算法后得到的時序分量及其頻譜能夠很好地體現齒輪局部故障特徵,具有很強的弱信號特徵提取能力。
  12. While some offer the frequency of this scenario as an example of the unworkability of the approach to exception handling taken by the java language design, i think it is merely a failure to use the right tools

    雖然一些人提供發生這種情景的頻率,是為了作為例子說明java語言設計採用的異常處理方法的不易操作性,但是我認為這僅僅是錯誤地使用了正確的工具。
  13. The pseudo - dynamic test of 1 / 3 - scale model six - story building assembled with hollow shear wall with seams. the internal forces, the deformation and the failure mechansm of the building under earthquake are studied. the rules of frequency, damping and response spectrum are studied. the characters of earthquake response such as structure displacement, interstory drift, action of earthquake, the amplificatory coefficient of acceleration and the rule of strain are discussed. at last, this paper presented the design method of this structure based on the aseismic style and put forward the construction

    進行了帶縫空心剪力墻結構六層樓房的1 3模型的擬動力試驗,研究了結構在水平地震作用下的受力特點、變形特徵、破壞形態等力學性能;得到了結構在不同受力階段的頻率、阻尼、反應譜等動力特性變化規律;討論了結構各樓層的水平位移、層間位移、地震力、加速度放大系數及構件應力分佈規律等結構地震反應特徵;指出了結構的抗震類型、薄弱層及薄弱部位;提出了多層帶縫空心剪力墻結構的第一階段設計方法和相應構造措施。
  14. When these faults occur they usually produce nonstationary vibration signals, by using wavelet packets transform on these signals, the fractal dimension of each frequency channel is extracted and the box dimension is used to depict the failure characteristics of vibration signals, and then the failure modes can be classified by radial basis function neural network

    以小波包分形技術作為訊號的故障特徵識別工具,將訊號分解成各自獨立的頻帶,然後計算每個頻帶訊號的盒維數,以盒維數量化的結果來描述系統之狀況。
  15. Before rock failure, it is found that ae distributed densely, and the coming fracture will occur in the density center of high magnitude events, and ae ratio of frequency grows greatly. these precursors can be presented by the change of b value, a t value and the contour of v value. prefab crack systems in the specimen will affect the fractures hi rocks

    關于巖石破裂過程中一些物理量的變化,發現在巖石破裂前,主破裂發生的區域先出現大能級聲發射的密集分佈;在巖石加載的臨界狀態,大能級的聲發射數量大量增加;在接近臨界時,大能級聲發射事件在失穩前頻度突然加快。
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