steady stress 中文意思是什麼

steady stress 解釋
定常應力
  • steady : adj 1 穩固的,平穩的,穩定的,不變的(腳步、努力等)。2 堅定的,扎實的,牢靠的(船等)。3 有規則...
  • stress : n 1 壓力,壓迫,緊迫,緊張。2 【語音】重音;重讀;【詩】揚音;語勢,著重點。3 重要(性),重點,...
  1. It has been discovered that the deformation in the primary creep regime can well described by eqution : - 0 = atm, moreover, the eqution : = a n exp ( - q / rt ) can be used to interpret phenomenally the relationship between the steady - state creep rate and stress, temperature

    蠕變的第一階段也就是減速蠕變階段的蠕變變形可用? _ 0 = at ~ m來描述。可以唯象地解釋穩態蠕變速率和蠕變應力和溫度之間的關系。
  2. According to the working modes of mr devices, combining the ohm ' s law of magnetic circuit and the design theory of non - steady magnetic circuit, magnetic structures of the automotive damper have been worked out. to emulate the performance of conventional shock absorber, two automotive mr dampers were designed and fabricated at chongqing university. an applied magnetic field increase the yield stress of mr fluids in flow annular passages, which alters the velocity profile of mr fluid in the passages and raise the pressure gradient between low cavity and high one at some given flow rates

    根據磁流變阻尼器工作模式,利用磁路中的歐姆定律和動態磁路設計原理,結合汽車懸架的技術要求和結構特點,提出了基於剪切模式和流動模式共同作用(混合工作模式)的汽車磁流變阻尼器設計原理,討論了阻尼器動態磁路設計中的若干技術問題;根據流體力學navier - stokes方程,分別利用newton流體特性和bingham流體特性,推導了基於平板模型和軸對稱模型的流變學方程,得出了阻尼器阻尼力的計算方法。
  3. Both transient and steady-state thermal stress can be determined by this procedure.

    瞬態和穩態的熱應力均可用這種方法測定。
  4. Product description : this series product has entire auto - lubrication systems and the ordinary two big kinds supplies to select, this machine major parts cancels the needle, cam and the ball bearing all uses the high quality import components, also selects the high quality steel products quenching heat treatment to the main stress components, the essential components uses special phosphorus processing, the foreign dew components all adopts special - purpose seal - up device and drains the oil the measure, therefore, entire causes machine throughout to locate the lubrication is reliable, the revolution is steady, under the high speed low chirp condition works

    本系列產品具有全自動潤滑型及普通型兩大類以供選用,本機主要零件勾針,凸輪及滾珠均採用優質進口零件,對主要受力零件亦選用優質鋼材淬火熱處理,關鍵零件則採用專門磷化處理,對外露零件均採取專用密封裝置及排油措施,因此,使整機始終處于潤滑可靠,運轉平穩,高速低噪的條件下工作。
  5. The combustor do n ' t fail if transient rise of temperature field is neglected, the stress field of combustor can n ' t cause gas film wall rupture. 2. combustor ' s creep and relaxation is calculated in steady temperature field, the results show that creep and relaxation is not main reason destroying combustor chamber

    對穩態溫度場下的蠕變鬆弛計算表明,高溫下的蠕變鬆弛促使火焰筒的熱應力下降,在所考慮的條件下穩態溫度場導致火焰筒的蠕變變形不是火焰筒破壞的主要原因。
  6. Firstly, this paper describes the optimization problem of thermal stress of fabrication process and steady work process for the hollow cylinder and the infinite plate. then, thermal stress distribution is calculated making use of theoretical formulation and the results can be validated by finite element method. in optimization, the restriction condition is heat insulation performance and the objective function is danger coefficient

    本文首先對平板結構和圓筒結構梯度塗層在制備過程和穩定工作狀態下的熱應力優化設計問題進行描述,然後分別用解析法求解兩種結構的梯度塗層在制備過程和穩定工作狀態下的熱應力分佈,並採用有限元方法驗證了熱應力分佈的結果,在優化設計時,以危險系數為目標函數,以塗層的隔熱性能為約束條件進行設計。
  7. The influences of the pre - stress on the working characteristic of the actuator are analyzed by the measurement of displacement. a numerical current source with alternative working mode and current range is manufactured to provide program - set steady current for the drive coil

    單晶材料消除了晶界對疇壁移動的影響,具有很好的低場下的位移輸出能力,這為微位移致動器的研製奠定了很好的基礎。
  8. Numerical examples, two cavities case, are provided to show the effect of wave number, distance between the centers of the cavities and the ground surface and distance between the centers of the cavities upon the dynamic stress concentration around the cavities edge and ground motion impacted by incident steady sh - wave

    通過具體算例,討論了與界面等距離的相鄰二個圓孔對sh波的散射,給出了數值結果,並討論了波數與圓孔至邊界距離和二圓孔中心距離變化對動應力集中和地面運動的影響。
  9. The steady flow stress model of 7055 aluminum alloy at high temperature has been established by regression analysis and artificial neural networks methods, respectively

    運用多元數學回歸和人工神經網路方法分別建立了7055鋁合金高溫塑性變形穩態流變應力模型。
  10. The critical crack and stress put forward provides theoretic foundation for monitoring portal machine. 3. applying steady theory of board, studying the problem of early curvature, flexibility model, welding remaining stress, elastic transmutation and brace condition and so on, conclude that structure of beam is primary place where metal structure of portal crane lose stabilization and the break of main beam is result of losing partial stabilization of main board

    文章提出的界限應力和臨界裂紋對于港口機械的監測提供了理論依據; 3 、運用板的穩定理論,探索了作為薄壁構件的門機金屬結構在失穩破壞中所涉及到的初曲率問題、彈性模量問題、焊接殘余應力問題、彈塑性變形問題以及支承條件問題等,得出了門機金屬結構發生失穩破壞的主要部位為臂架結構,且主臂架的折斷是由於受壓翼板局部失穩引起整體破壞; 4 、探討了焊接對結構承載的影響。
  11. Steady state thermal analysis under natural convection boundary condition was performed. both the temperature distribution and the induced mechanical stress were calculated in this simulation. high stress area was found and the potential reasons which can cause packaging to fail were also discussed

    具體內容包括: 1 .建立一款疊層csp / bga封裝的三維實體有限元模型,求解自然對流條件下的穩態溫度場分佈,並在此基礎上進行穩態熱應力和熱應變分析,找出由於溫度梯度在封裝內部引起的高熱應力區域,分析其可能造成的失效結果。
  12. The influence of different structural parameters ( diameter and shape of cooling water pipes, distance between cooling water pipes, thickness of stave and cast in bricks ) on the steady state highest temperature and thermal stress of cooling stave was numerically simulated and analyzed by engineering software ansys

    摘要採用有限元分析軟體ansys計算並分析了不同結構參數(冷卻水管形狀和直徑、冷卻水管間距、冷卻壁鑲磚厚度及冷卻壁壁體厚度)對冷卻壁最高溫度及熱應力分佈的影響。
  13. 6. since the reactor has the structure of multi - layer in parallel, the axial electric stress of coil is zero. under steady operation voltage, the voltage is distributed evenly along axial direction of coil

    6 .由於電抗器採用多層並聯結構,線圈的軸向電應力為零,在穩態工作電壓下,沿線圈軸向高度方向的電壓分佈均勻。
  14. In first part of the thesis, by a review of the research on aircraft sonic fatigue, the formulas for calculating natural frequencies of the typical aircraft skin - panel structure with four edges simply - supported or four edges fixed - supported were drawn, the response of displacement and stress was analysed under the condition of random white noise loading with the steady - state or unsteady - state. the procedure how to use data of s - n curve under constant loading for predicating the fatigue life of skin - panel subjected to random loading was shown

    通過對聲疲勞問題研究的回顧,根據典型飛機蒙皮壁板模型,整理了四邊固支,四邊簡支兩種邊界條件下多階模態固有頻率,非平穩及平穩隨機白噪聲載荷下的位移和應力響應,以及如何從等幅s ? n曲線求得隨機載荷應力下的疲勞壽命。
  15. Basicing on the comparison, we can find the new type of sliding - vane pump has comparison performances, such as unique structure, good stress on sliding vane and steady flux

    經對比分析和試驗,表明該新型滑片泵結構獨特,滑片受力良好、無磨損、流量穩定、高效節能,是一種性能優越的滑片泵新產品。
  16. With the data recorded by computer, the author studies the experiment progress in detail, which includes the development of pore press, strain, strength of the sand, etc. connecting the development of these phenomena with the development of stress path, the author finds new mechanism which can explain the phenomena in the experiment. what is more, according to the dynamic test of the sand, there appears a steady state at the last phase of the development of strain and stress path, in which the strength of the sand is studied because it is an important parameter in evaluating the stability of sand against liquefaction. secondly, the dynamic constitutive relation was studied through the dynamic tri - axial test

    本文首先採用目前國內較先進的微機控制動三軸儀,利用其可以適時採集和儲存數據的優勢,對砂土的實驗過程進行了細致的分析,研究該過程中孔隙水壓力發展、軸向應變發展以及它們與應力路徑之間的關系,對飽和砂土的剪脹、剪縮和卸載體縮等多個方面進行了研究,探索了砂土的動力特性,分析了影響砂土抗剪強度的各種因素,這些因素既包括土本身的特性(土的密度、結構、級配、透水性以及初始狀態等) ,又包括動荷載的特徵(振動力幅值大小和振動頻率等) 。
  17. The transient heat transfer between the drum wall and cooling water rising up with steady rate was simulated numerically using fem, and the time history of the stress and strain fields were also acquired with indirect coupling method

    摘要利用有限元法模擬了焦炭塔進水冷焦階段恆速上升的介質與塔壁的動態傳熱過程,並用間接耦合法求得了應力、應變場的變化過程。
  18. In this thesis, in order to search the condition and reason of failure for a combustor, thermal stress was analyzed in steady and transient temperature field. according to the investigation, three conclusions are obtained

    在忽略瞬態升溫過程得到的穩態溫度場作用下,火焰筒的熱應力不足以導致裂紋萌生,所以僅進行穩態分析不能得到合理的結論。
  19. Because a steady flow of saliva washes away bacteria and their smelly chemical products, anything that promotes dryness ? mouth breathing, fasting, prolonged talking, stress and hundreds of medications ? can exacerbate the situation

    由於唾液的持續流動會沖走細菌及其發臭的化學產物,因此任何促使口腔乾燥的動作,像是用嘴巴呼吸、禁食、長時間說話、壓力以及數百種用藥,都會讓口臭的情況惡化。
  20. As far as china current fiscal resources, absolute scale and relative scale of public agricultural support are all in normal level, so it has more practical significance to stress on steady increasing of aggregate support than to stress on enlarging the relative scale of agricultural support

    就國家現有財力而言,我國財政農業投入性支持的絕對規模和相對規模均處于正常水平,強調支持總額的穩定增長比單純強調擴大支持的相對規模更具有現實意義。
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