靜壓強 的英文怎麼說
中文拼音 [jìngyāqiáng]
靜壓強
英文
static pressure-
Even if the pressure gradient is partly balanced by the fluid acceleration, its order of magnitude is usually no larger than the hydrostatic gradient.
即使壓強梯度部分地被流體加速度平衡,其數量級通常也不大於靜壓梯度。The accuracy of the mfc was 3. 8 % fs, and the rotor flow meter ' s was 2 % fs. 2. the measurement of pressure was carried out by using semiconductor silicon piezometer
( 2 )壓強的測量採用半導體硅壓阻式壓強傳感器,通過測量mpt進氣管路的靜壓,結合理論分析計算得到mpt諧振腔的總壓。Moreover, the resulted prediction model of foam size of the closed cell aluminum foam was verified by comparison to the experimental results from the foaming process at different foaming conditions, and the predicted bubble diameter is in good agreement with the experimental ones, the relative error distributes between - 5. 04 % and 6. 32 %
當入射空氣的壓強、氣流量,液面高度,出氣孔直徑增大時,氣泡直徑隨之增大;當出氣孔數量,液體粘度增大時,氣泡直徑減小,表面張力對氣泡直徑的影響可以忽略不計;靜態條件下液體表面氣泡直徑的預測值和實驗測量值符合得較好,相對誤差分佈在- 5 . 04 % ~ 6 . 32 %之間。The results indicate that if the value of press stress is over certain figure, press stress and al plate ’ s thickness have little influence on sawtooth distortion for the same kind of sawtooth ; sawtooth distortion is well - regulated under static press, while it is irregular under impact press. bottom coating make great influence on bond strength of samples which can improve the value remarkably ; bonding mechanism of clad steel is mechanism of mechanical effect that sawtooth which is hooked occludes with al plate
結果表明:同種齒型,當壓應力大於一定的值時,壓應力和覆板的厚度對齒形的變化影響不大;靜壓下齒形變化比較規則,鋸齒頂端向一側彎曲成鉤狀;沖壓下齒形比較凌亂,鋸齒的頂端沒有明顯的變形;后處理對試樣的結合強度影響很大,打底試樣由於粘結層的作用,結合強度較高;機械作用機制是復合鋼板的主要復合機理,鋸齒彎曲成鉤狀和鋁板形成機械咬合。Pitot tube allows an indirect measurement of speed by determining the dynamic pressure from the difference between the total and static pressure
空速管提供了一種間接測量速度的方法,它是通過測定全壓和靜態壓強差值的動態變化來測量速度的。Test method for hydrostatic compressive strength of glass - reinforced plastic cylinders
玻璃增強塑料圓筒液體靜壓力強度的試驗方法Practices show that the compressive strength, the modulus of elasticity, the permeability coefficient and the compactness of concrete obtained respectively by the compaction method, the unconfined compression static compaction method, the sand trenching and filling method, and nuclear densimeters meet the requirement of design, and the mixing proportion of concrete of the side - wall is reasonable
實踐證明施工中用擊實法、無側限抗壓靜力壓實法、挖坑灌砂法及核子密度儀分別檢測出的邊墻混凝土抗壓強度、彈性模量、滲透系數和密實度值均滿足設計要求,邊墻混凝土配合比合理。Erosion damage decreases rock load area, after defining damage variable, the damage stress in rock can be calculated by the method bring forward by lemaitre conveniently. for surrounding rock of a deep buried tunnel under the condition of drained, its seepage character is not only controlled by the high stress in rock, but also influenced by the development of erosion damage. in the whole course of rock " s deformation and failure, its seepage character decreases with the increment of stress in elastic stage, while " increases with the development of failure
巖樣中全應力?應變三軸滲透試驗過程中的典型表現為隨著應力的增加,巖體內的空隙和裂紋受載閉合,滲透性降低,應力達到一定閾西南交通大學鷹士研究生學位論文第11頁值后,巖體內部裂紋發生擴展和歸並,滲透性增強;同樣,地下水的動、靜壓力作用對裂紋的擴展和歸並也起著促進作用。Specimens ’ cracking load under dead - load, fatigue failure characteristic, fatigue life, deflection of span - centre, fatigue flexural rigidity, maximal crack width, development of cracks and strain of concrete and steel bars have been investigated. the influence of fatigue cycle characteristic, ratio of reinforcement, kinds of aggregate and concrete compressive strength on the specimens ’ fatigue behavior has been also investigated
對試件的靜載下開裂荷載、疲勞破壞特徵、疲勞壽命、疲勞荷載作用下的跨中撓度、截面疲勞抗彎剛度、裂縫開展情況及最大裂縫寬度、鋼筋及混凝土在循環荷載作用下應變等內容進行了研究,分析了疲勞循環特徵值、縱筋配筋率、骨料種類、混凝土抗壓強度等因素對試件疲勞性能的影響。At the same time, the mathematical models of the electric field and the flow field distribution were established from the theory of electrostatic enhancement of heat transfer. employed finite differential method and over - relaxation iteration method, according to certain boundary conditions in the wire - plate electrode space, the electric field and the flow field in the wire - plate space were numerically simulated under different initial velocities of r11 stream and different magnitudes of applied voltage. the calculation results agreed with theoretical analysis satisfactorily
同時從靜電強化換熱理論出發,建立了表徵線板電極間的電場和流場分佈的數學模型,並根據線-板電極間的邊界條件,利用有限差分法和超鬆弛迭代法,分別就不同氣流初速度和不同外施電壓的情況下,對線-板空間的電場和流場進行了數值模擬,計算結果與理論分析基本一致。The experiments produced respectively al clad plate by impact & cold press methods under normal temperature. this paper studied the rules of sawtooth distortion, inspected the fibre structure and bond strength of samples, found technics parameters of produce clad plate and analyzed their infections on bond strength
分別利用沖擊法和靜壓法在常溫下制備了覆al復合鋼板,研究了這兩種復合鋼板的鋸齒變形規律,檢測界面顯微組織和結合強度,找到制備復合鋼板的工藝參數,並分析其對復合鋼板結合的影響。Anchor jacked pile is a new technique researched by ourselves for building reinforce and has some strongpoint others have not. twenty years " popularization makes this technique widely used. now anchor jacked pile can be applied in some other project such as correction, ground strengthening, pile foundation ' s top - down construction in newly built building
錨桿靜壓樁作為我國自行研製的一種地基托換加固新技術,有著其它施工方法所不具有的自身的優點,經過二十年的推廣使用,目前在很多地區已經廣泛使用,而且其適用范圍也從以前的單一的托換加固作用發展成可用於糾偏、補強加固、新建工程逆作法樁基施工等工程。Energetic materials for defense - physical chemical analyses and properties - density of plate or grain high explosives - method hydrostatic scale method
防禦用高能材料.物理化學分析和特性.片式或粒式強爆炸物的密度.靜壓鱗片法The emphasis in this chapter is to state the principles of energy and pressure of crystals in static situation ( when temperature 7 = ok ), the mie - griineisen relationship, describing the vibrational energy ( thermal energy ) and thermal pressure ( plh ) of crystals, and debye model and debye equation of state for " ideal " solids
其次是對固體的廣義物態方程的基本理論、多項式物態方程、與靜態晶格壓縮相聯系的冷能和冷壓、與晶格熱振動緊密聯系的熱能和熱壓、及描述晶體壓強、冷能、熱能三者之間關系的mie - gr (The neutral gas pressure is smaller where electric fields is stronger, which is independent of the instantanious electric polarity of the electrode and cause gas flow from high pressure region to low pressure region. so flow can be accelerated if electric field is properly adjusted, which is the mechanism of the active flow control
場強越大的區域氣體靜壓反而越低,而與瞬間電極的極性無關,導致了氣體從高壓區到低壓區的流動,因此只要適當改變電場的分佈就可以使氣體產生加速,這就等離子體主動流動控制的加速機理。4. delayed stable strength was found in different temperature and standing time according to concrete compression test data, which is a relative lowest value. the most proper time for reinforcement after fire was discussed
根據混凝土抗壓強度試驗結果,找出了各種受火溫度下混凝土隨靜置時間變化的延遲穩定強度指標,該強度是綜合工程實際和試驗結果而得出的一個相對最低強度,並以此探討了火災后混凝土結構實施補強加固的最佳合理時間。3. regularity of some mechanics index such as compressive strength, constitutive relationship of stress to strain and modulus changing with temperature, standing time, cooling and curing process after cool were studied by test. corresponding regressive equation was obtained with large quantity of data
試驗研究了火災高溫后考慮靜置時間影響的混凝土抗壓強度、應力-應變本構關系及彈性模量等力學性能指標隨混凝土受火溫度、靜置時間、冷卻和冷卻后的養護方式的變化規律,通過對大量試驗數據的處理,給出了相應的擬合回歸公式。Therefore, interlayer toughened composites are the excellent candidate materials for primary structure of aircrafts. in this paper, composites modified with particle - interlayer were fabricated. based on the aims of improving compression strength after impact ( cai ) and evaluate damage resistance and damage tolerance, mode ii fracture toughness test and quasi - static indentation test ( qsi ) were conducted
本文採用層間顆粒增韌技術制備試驗件,基於提高沖擊后壓縮強度( cai )和考察損傷阻抗、損傷容限的目的,試驗測試了型層間斷裂韌性g _ ( c ) 、準靜壓痕( qsi )試驗的分層起始能量和接觸力?凹坑深度關系。Plastics piping and ducting systems - determination of the long - term hydrostatic strength of thermoplastics materials in pipe form by extrapolation
用外推法對熱塑性塑料管材長期靜液壓強度的測定Results from this investigation show that the loss generation within the coolant holes is substantial and that ejection into regions of low static pressure increases the loss per unit coolant mass flow. the results also reveal strong interactions between endwall coolant ejection and secondary flow in the blade passage. the secondary flow has a strong influence on coolant trajectories and coolant ejection delays the three - dimensional separation of the inlet boundary layer on the endwall, chang the secondary flow and reduces its associated losses
本文的研究成果顯示,冷卻孔內產生的損失是主要的,並且低靜壓區域的冷空氣噴射會增加單位冷空氣質量流的消耗;噴射的冷空氣與葉柵端壁流場之間有強烈的相互作用;二次流對冷卻空氣的流動軌跡有較強的影響;冷空氣噴射能延緩端壁入口邊界層的三維分離、改變二次流從而減少其相關損耗。分享友人