表面接觸壓力 的英文怎麼說
中文拼音 [biǎomiànjiēchùyālì]
表面接觸壓力
英文
surface contact pressure- 表 : Ⅰ名詞1 (外面;外表) outside; surface; external 2 (中表親戚) the relationship between the child...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 接 : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
- 觸 : Ⅰ動詞1 (接觸) touch; contact 2 (碰; 撞) strike; hit 3 (觸動) touch 4 (感動) move sb ; sti...
- 壓 : 壓構詞成分。
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 表面 : surface; superficies; boundary; face; rind; sheet; skin; outside; appearance
- 接觸 : 1. (交往) come into contact with; get in touch with 2. (沖突) engage 3. (挨上; 碰著) contact; touch
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First, a simple discussion for the mechanism about electrostatic atomization of the liquids has been given ; then the paper theoretically analyzed waving course, liquid drop producing course, and the liquid drop diffusing course in electrostatics atomization process., gave an analysis about the methods about carrying charges to the liquid drop, and analyzed that liquid with high electrical conductivity can be carried charges and atomized by electric field, while the isolated liquid with low electrical conductivity can be charged fully with the soakage electrode and inducing charge methods. at last the paper designed and configured the experimental equipment, conducted the atomization experiment to the three liquid medium - kerosene, emulsifier and alcohol under the same environment, handled the experimental results, then summarized the relationship between liquid electrostatic atomization effect and liquid surface tension, electronic conductivity and viscosity, along with the influence of voltage to electrostatic atomization and so on, found out the liquid atomization rule in high voltage electrostatic field
首先,對液體介質的靜電霧化機理作了初步的探討,理論上分析了液體霧化過程中射流區、波紋區、霧滴區和霧滴擴散區;然後對液體荷電方法進行了研究分析,對于高電導率的液體,場致荷電和接觸荷電可以使其霧化,而對于電導率較低的絕緣液體,需用浸潤電極荷電和感應荷電方法使其充分帶電;最後,根據前面的研究分析,設計和組裝試驗裝置,在同一環境下對煤油、乳化劑、酒精三種不同液體介質進行高壓靜電霧化試驗,並對試驗結果進行分析處理,總結出液體靜電霧化與液體表面張力、電導率和粘度的關系及電壓對液體靜電霧化的影響等,得出高壓靜電場中液體霧化的一般規律。An actual contact surface burst leads to the highest possible overpressures near ground zero.
對于實際接觸表面爆炸情況,在地面零點附近可形成最大的超壓力。Secondly, through analyzing the failure instance of electrical connectors in using and testing environment, educed contact fault was a main mode of failure of electrical connectors. on natural working conditions, the main reasons which caused fault of electrical connector were contact stress decreasing, microseism wearing and tearing and surface film growing
而在正常的工作條件下,造成電連接器電接觸失效,即決定電連接器工作壽命的主要原因是接觸壓力減小、微動磨損和表面膜層的生長,而影響接觸壓力、微動磨損和表面膜層變化的主要因素是環境振動和溫度。Gas permeability tester and mechanical folding device were developed to study the barrier property and deformation failure behaviors. the surface characterization, chemical structure, optical, mechanical properties of pet coated with dlc have been investigated by x - ray photoelectron spectroscopy ( xps ), contact angle measurement, light transmission analysis, nanoindentation and friction wear tests
通過x射線光電子譜分析、接觸角測定、光學透過率分析、納米壓痕、摩擦磨損試驗、機械彎折試驗、氣體透過率試驗,對膜層的表面特徵,光學、力學及氣體阻隔性能進行了系統的研究。Results showed that the ductility of bolt spjice is much better than welds, weaker splice joints develop larger plastic deformation, slipping between faying surfaces, bearing of bolts to hole surfaces and buckling of splicing plates are all ideal energy dissipation mechanism
試驗結果表明:螺栓拼接節點的延性遠好於樑柱焊縫連接;較弱的拼接節點產生較大的塑性變形;接觸面的滑移、螺栓與孔壁的擠壓和翼緣拼接板的屈曲都具有良好的耗能能力。To directly estimate the life of this kind of motor, and to design a orbit curve with the longest life at same condition, this paper gives theoretic research of the equal contact stress inner curve of radial piston motor. the research is divided into four parts : 1 ) taken all forces the piston endured into consideration when radial piston motor working, the force between roller ( or ball ) and orbit is deduced. the simple style of the press expression can be confirmed by ignoring minor influence factors after analysis all factors that will influence this press
靜壓傳動技術在各類工程機械中得到廣泛的應用,對作為其核心部件的徑向柱塞式低速大扭矩液壓馬達的研究顯得十分重要,為了能直接對這種馬達進行壽命估計,並能在相同工況下求得壽命最長的軌道曲線,本文從設計等接觸應力內曲線的角度對這類馬達作探討性的研究,主要從以下四個方面進行: ( 1 )綜合考慮徑向柱塞式液壓馬達工作時的各種主要受力狀況,對柱塞組件進行受力分析,並通過模擬分析影響軌道和滾動體間正壓力的各個因素,得到正壓力的簡化表達式。The interface behavior between essence and ethylene - vinyl acetate copolymer pallets was studied so that necessary data were obtained to guide the preparation of fragrant masterbatch. the adsorption type and wettability between essence and the copolymer pallets were analysed by measurements of fourier transform infrared spectrum, surface tension, contact angle and specific surface area. the technical factors affecting absorptivity such as the charge ratio, temperature, pressure and stirring speed were studied by series of adsorption experiments. the results showed that the adsorption of essence on the surface of ethylene - vinyl acetate copolymer pallets is physical in nature. essence couldn ' t moisten the surface of ethylene - vinyl acetate copolymer pallets absolutely, but it could be soaked into the surface of the pallets partly. adsorptivity could be increased by enhancing the temperature, pressure and stirring speed, but the extension of adsorption time had little influence on adsorptivity
研究了香精與乙烯/醋酸乙烯共聚物粒子之間的界面行為,以便為香型母粒的制備提供必要的理論依據.利用傅立葉變換紅外光譜、表面張力、接觸角及比表面面積等測定手段,分析了香精與載體之間的吸附類型和潤濕作用.並通過一系列吸附實驗,討論了配料比、溫度、壓力、攪拌等工藝條件對吸附量的影響.結果表明,香精在乙烯/醋酸乙烯共聚物粒子表面的吸附為物理吸附;香精無法完全潤濕載體粒子表面,但可以對其形成部分浸潤;提高溫度、壓力、攪拌速度可以增加吸附量,而延長吸附時間對增加吸附量貢獻不大Abstract : the interface behavior between essence and ethylene - vinyl acetate copolymer pallets was studied so that necessary data were obtained to guide the preparation of fragrant masterbatch. the adsorption type and wettability between essence and the copolymer pallets were analysed by measurements of fourier transform infrared spectrum, surface tension, contact angle and specific surface area. the technical factors affecting absorptivity such as the charge ratio, temperature, pressure and stirring speed were studied by series of adsorption experiments. the results showed that the adsorption of essence on the surface of ethylene - vinyl acetate copolymer pallets is physical in nature. essence couldn ' t moisten the surface of ethylene - vinyl acetate copolymer pallets absolutely, but it could be soaked into the surface of the pallets partly. adsorptivity could be increased by enhancing the temperature, pressure and stirring speed, but the extension of adsorption time had little influence on adsorptivity
文摘:研究了香精與乙烯/醋酸乙烯共聚物粒子之間的界面行為,以便為香型母粒的制備提供必要的理論依據.利用傅立葉變換紅外光譜、表面張力、接觸角及比表面面積等測定手段,分析了香精與載體之間的吸附類型和潤濕作用.並通過一系列吸附實驗,討論了配料比、溫度、壓力、攪拌等工藝條件對吸附量的影響.結果表明,香精在乙烯/醋酸乙烯共聚物粒子表面的吸附為物理吸附;香精無法完全潤濕載體粒子表面,但可以對其形成部分浸潤;提高溫度、壓力、攪拌速度可以增加吸附量,而延長吸附時間對增加吸附量貢獻不大Firstly, the comparation study between the wedge pressing and the contour forging has shown that the transverse deforming initiated from the surface of the preforms. when the superficies reached the moulding wall, the deforming moved downwards as the high - direction deforming increased, till the moulding chamber was full of stock ; the transverse deforming of the moulding pressing stock initiated from the center of the stock then surned into a drum - type. the distribution of the density and hardness of the high - direction indicated that the wedge pressing acquired a better ability of pressing penetration
首先對比研究了楔形壓制工藝與模壓緻密化工藝,發現楔壓坯料的橫向變形從上表層開始,當上表面與模壁接觸后,隨著高向變形量的增加逐步向下移動,直至坯料充滿模腔;模壓坯料的橫向變形從坯料中間開始,形成鼓形。高向的密度、硬度分佈表明楔壓比模壓具有更好的壓透能力。One has to hit in the direction that the edge is pointing at, so that the contact area would be as small as possible to ensure the generation of a large pressure. hence, the target s surface is penetrated and a cut is made
要斬進的話,刀劍必須向著鋒口所指的方向直線走,與目標物的接觸面積越小越好,以確保產生出最大的壓力,足夠穿過目標物的表面,造成一次成功的斬擊。Results show that clamping angle dominated displacement of anchorage and failure mechanism : surrounding rock and soil compaction is induced by small clamping angle, instead, shear failure occurs in neighborhood soil of leading end of anchorage while clamping angle is big ; anchorage length influenced surrounding rock stress as nonlinear self - organization critical characteristic on interface ; anchorage size contribution to systemic primary monitor parameter is relatively uniform
研究發現:夾持角控制著錨碇變位和破壞機理,夾持角過小時錨碇壓密圍巖土體,較大時錨碇前端附近土體則產生剪切破壞;錨碇長度影響接觸面圍巖應力量值,表現為非線性的自組織臨界特徵;錨碇體粗細對系統主要監控參數的貢獻相對均勻。The fem results indicated that as to the rough surfaces in sliding contact, the value of the contact pressure was very high which coursed a high value of the heat flow rate, meanwhile the sliding time was not enough for the frictional heat to transfer, thus the highest value of the body temperature occurred just on the sliding surfaces, which possessed a sharp thermal gradient in direction perpendicular to the sliding surface. so the great thermal stress was caused just by the sharp gradient and the thermal elastic distortion with which the contact pressure changed occurred simultaneously, thus this change of the contact pressure would affect the temperature distribution in return
對于相對滑動的粗糙表面,因實際接觸面積小而導致接觸壓力很大,這樣使得熱流密度會很大,同時由於滑動時間很短,熱來不及傳導,最高溫度發生在摩擦表面,在垂直於摩擦面的方向有很大的溫度梯度,使得熱應力很大,且最大應力發生在表面,同時產生熱彈性變形,這種變形使得接觸區域內的壓力分佈發生變化,這種變化又反過來影響了接觸區域的溫度分佈。As a main product of our company, spraying drying set is a kind of centrifugal or pressurized, which atomizes liquid materials such as solution, suspension, emulsion or paste into timy droplet ( surface area increased ) and dry them into powder product an once ( several to dozens of seconds ) by contacying hot air
噴霧乾燥機組是一種用離心式或壓力式霧化器,將溶液、懸浮液,乳濁液或漿料等料液霧化成細微液滴(表面積顯著增大) ,經與熱風接觸得以急速乾燥(幾秒到幾十秒) ,從而直接得到粉末產品的裝置。Based on g - w contact model, two rough surfaces in contact were simplified to a smooth one and a rough one which has regular rectangular asperities, and a three - dimensional transient thermal and stress coupled fem model was established using thermal - structure sequential coupling. the course of the sliding with friction was simulated using the nonlinear multiphysics field fem, meanwhile considering thermal - elastic problems of the two bodies, to calculate and analyze the temperature, contact pressure and stress of the sliding contact surfaces with frictional heating
基於g - w接觸模型,將兩個粗糙表面簡化為一個有規則排列的長方體微凸體的粗糙表面與一光滑表面,利用熱結構順序耦合建立三維瞬態有限元計算模型,考慮兩個物體摩擦接觸的熱彈性問題,採用非線性有限元多物理場來實現,對粗糙表面接觸模型的瞬時摩擦溫度場、壓力場和應力場進行了計算分析。On the basis of measured results of contact pressure on abundant literature and the computed results in this paper, simplified contact pressure models have been put forward. the finite element program msc. nastran was selected to analyze the response of pavement under the two modelled loads. the effects of axle load and material properties were studied, and the effects of truck load on permanent deformation and fatigue crack were also discussed
本文首先根據輪胎胎面花紋類型的不同,提出接觸面的簡化模型;然後參考相關輪胎與路面接觸壓力的測試結果,並結合本文的測試結果及輪胎與路面接觸壓力的模擬計算結果,提出接觸面內的壓力分佈模型,即輪胎作用於路表的荷載簡化模型;接著利用有限元軟體msc . nastran對瀝青路面在該荷載模型作用下的響應進行計算分析,還討論了軸載的變化及路面材料參數的變化對路面結構響應的影響,並且對車輛荷載對車轍和疲勞裂縫的影響進行探討。分享友人