軸向壓力降 的英文怎麼說
中文拼音 [zhóuxiàngyālìjiàng]
軸向壓力降
英文
axial drop-
The hydrodynamic propulsor takes drill fluid as power source, with the aid of the axial load produced by the pressure drop of the bit nozzle, makes the axial force act on the bit to produce wob, making up for the insufficient wob, ensuring the bit feeding smoothly and improving the penetration rate
這種推進器以鉆井液為動力源,藉助鉆頭噴嘴壓降產生的軸向載荷,使軸向力直接作用於鉆頭產生鉆壓,彌補有效鉆壓不足,保證鉆頭平穩鉆進,提高機械鉆速。A two component design consisting of appropriate size and length of structural reinforcing rods and dead - end component is required to transfer axial tensile loads and distribute radial compressive forces through the plastic jacket and onto the internal strength members without damaging the fragile plastic jacket or internal optical fibers
螺旋預絞絲結構不僅能有效地降低配合區域內光纜單位應力和避免應力集中,傳遞軸向張力,而且將預絞絲的徑向壓力均勻地分佈在這段較長的配合區域內。To ensure the charging pump working reliably, the following measures should be adopted : ( 1 ) adopting modified circular casing to reduce the radial force of the impeller and decrease the seal clearance ; ( 2 ) using radical ribs on impeller and helical sealing on shaft to realize minor pressure differential ; ( 3 ) using back pressure stuffing box to ensure sealing under small packing force ; ( 4 ) adopting self - lubricant flexible graphite stuffing for absorption of solids entering in the graphite in case of leaking
為確保灌注泵可靠工作,提出改進措施: ( 1 )採用改型環形泵體降低葉輪的徑向力,減小軸封間隙,抑制泄漏; ( 2 )採用背葉片降低葉片根部壓頭,獲得微壓,使軸封兩端承受較小壓差; ( 3 )採用螺旋密封降低軸封兩端壓差,在保持微壓的同時避免出現負壓,密封效果更好; ( 4 )採用反壓式填料密封結構,在很小的壓緊力下,即可保證密封; ( 5 )採用具有潤滑功效的柔性石墨填料,即使發生軸封泄漏,進入石墨內部的固相顆粒也將隨著石墨的消耗而被鉆井液吸收。We did some analysis about the relativity between the vibration and the noise of the wheel. after the testing of the first line of guangzhou underground, we found that the existing wheel damper has nothing to do with the noise of wheel less than four thousands hz. compared of different contributions of the tread vibration and the web vibration on sound level of railway noise
在實驗過程中,改進了對車輪的激振方式,利用單擺激振提高了激振力的精度;實驗分析了車輪阻尼器的結構、安裝方式及其動力學參數對車輪阻尼器降噪效果的影響;也分析了車輪振動與噪聲的相關性;現場測試廣州地鐵一號線的噪聲特性,確定了車輪阻尼器所要控制的頻率范圍;對比分析不同激振情況下,踏面徑向振動與輻板軸向振動對噪聲聲壓級的貢獻比例。The parameters are measured respectively during the experimental process, such as bearing capacity, deformation, strain and so on. it concludes that when the other conditions is equal, the limit bearing capacity of the concrete filled steel tube long column subjected to axial compress is reduced along with the long diameter ratio increased
從試驗結果可以看出:鋼管混凝土軸心受壓長柱的穩定承載力,在其他條件相同時隨長細比的增大而逐漸降低;試件在最大承載力狀態下,鋼管表面的平均縱向應變已超過鋼管的屈服應變值,破壞呈現為非彈性失穩破壞。Bm12 t is a kind of medium sized orbital riveting machine and driving by hydraulic. its adopted the advanced orbital technology, process by cold rolling. the ascend and descend of power by screw pole and it can control the rough adjust effectively, and micro - adjust by screw cap of power head, the center hole of bench are coaxial with the spindle, and it put the holder available
Bm12t是液壓類中型徑向鉚接機,該機應用有第五代擺輾鉚接技術外,同時採用絲桿升降式動力頭機頭部分不固定,臺面具有夾具梯形槽,工作臺中心孔徑與主軸軸線同軸,可用於夾具定位。M12t is the small - size orbit riveting machine of hydraulic pressure, and the plum blossom removing to apply to have international advanced orbit riveting technology, this machine has been enlarged the bench, and possesses t - slot of clamping apparatus, bench centre aperture and axis coaxial, and available fixes a position in the clamping apparatus
Jm12t是液壓類中型徑向臺式鉚接機,除應用有國際先進的11瓣梅花徑向鉚接技術外,同時採用絲桿升降式動力頭機頭部分不固定,臺面具有夾具梯形槽,工作臺中心孔徑與主軸軸線同軸,可用於夾具定位。Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result
西安理工大學碩士學位論文在水平地震作用下,並考慮風荷載組合,分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系,通過改變結構參數,運用空間有限元方法,進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ,以及「構件內力」 。結果表明:在等面積原則下,異型柱代換矩形柱后,結構剛度增大,側向位移明顯減小,地震反應力略有增加,框架柱軸壓比最大增幅小於8 % ,結構整體抗震性能有所提高;當異型柱肢長肢厚比小於等於3 . 6時,結構有利於抗震;水平地震作用力與整體坐標夾角為0度時,結構地震作用效應較大,屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐,側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小,構件內力增大適中,是一種抗震性能優越的結構體系:在抗震設防烈度較高地區( 8度)和抗震不利的建築場地( m類場地) ,採用異型柱結構體系時,應盡可能減輕結構自重,降低地震作用力;分別採用「振型分解反應譜」法和「時程分析」法進行地震作用計算,兩種方法所得結果基本一致。The reliability is validated further on. 3. the static loading test is modeled by plaxis, based on this, the basic bearing mechanism is analysed which comprise the rule of the load - settlement curves, inner and outer friction resistance, end bearing, stress distribution along pile depth and the dissipation of excess pore pressures
應用plaxis程序模擬單樁靜載荷試驗的過程,並根據計算結果較為詳細的分析了pcc單樁的基本承載特性,主要包括荷載?沉降曲線的特徵、樁壁內外側摩阻力的分佈、樁端阻力的分佈、樁的軸向荷載傳遞以及孔壓消散規律等。Four arrays of apparent resistivity are arranged at this measuring surface of granite sample symmetrically with symmetrical four - electrode method, and at an angle of 45 between any two adjacent arrays. the elastic constraint is exerted on 4 surfaces for parallel to the longest dimension of the sample. the samples are compressed along the direction parallel to the longest dimension of the cubic, and the variation of apparent resistivity during the whole loading process is observed
在花崗巖標本測量面上,布設4條夾角互為45的視電阻率測線,將標本平行長軸方向的4個面加上彈性約束,沿標本長軸方向加壓,測量標本視電阻率隨軸向應力的變化,實驗結果為: 1巖石視電阻率變化形態顯上升-平穩-下降形態,但平穩段不明顯,時間很短2視電阻率開始下降時間,比其他受力方式實驗結果都早,約提前10 %破裂應力。The experimental results are the following : 1 the resistivity changing features of rock show rise - smooth - drop, and the smooth segment is very short and unobvious. 2 the time of first drop for the apparent resistivity is earlier than all other loading experimental results, the rupture stress about moves up by 10 per cent. viz : the apparent resistivity starting drop when axial rupture stress increases about 40 per cent for the array parallel to the axial ; the apparent resistivity starting drop when axial rupture stress reaches about one - third for the arrays non - parallel to the axial
即:平行於軸壓方向的測道,在軸向破裂應力的40 %左右開始下降不平行軸壓方向的測道,視電現率約在1 3軸向破裂應力開始下降3電阻率從開始下降起,下降速率逐漸增加,但增加得很緩慢,巖石大破裂前,單位軸向應力變化引起的視電阻率變化幅度也不是很大。The paper points out the factor of safety by means of finite element method, the strength reduction method and limit equilibrium method decreases in turn. according to analysis of the strength reduction method, the stability of the cutting slope is less than the stability of nature slope. according to the results by the finite element method, the factor of safety calculated by axial loading stress - strain model is less than the factor of safety by lateral unloading stress - strain model
表明有限元法、強度折減法、極限平衡法得出的安全系數依次降低;依據強度折減法分析,相同條件下,挖方邊坡的安全系數較自然邊坡的安全系數小;依據有限元西安理工大學碩士學位論文法分析,軸向加荷應力路徑模型確定的安全系數較圍壓卸荷應力路徑模型確定的安全系數小。分享友人