friction height 中文意思是什麼
friction height
解釋
摩擦高度-
Compared the results of fea and the data of experiment, we can analyse that the distributing of the seismic stress of polymer - geogrid reinforced material is similar to that of the static stress, but the stress values of them is different ; the seismic similar friction coefficient between the earth and reinforced material fall with the increasing of earthquake acceleration, model acceleration respond along the height of the model, etc. thirdly, according to the comparison and analysis of the model seismic fea results and model experiment data, we can find the polymer - geogrid reinforced earth seismic fea is reasonable, which is composed by earth element, contact element and reinforced material element
通過對比有限元計算結果和試驗數據，分析得出塑料土工格柵筋材的最大動拉應力的分佈與靜拉應力的分佈沿筋材的埋深大致相同，只是應力的值大小不同；地震作用下土筋間的動似摩擦系數是隨地震加速度的增加而減小；模型沿墻高方向的加速度響應等。接著，根據模型動力有限元時程分析結果和模型試驗數據的比較分析，得出由土體單元、接觸單元和筋材單元組合的塑料土工格柵加筋土非線性動力有限元分析模式的合理性。 -
The experimental results of air heat transfer show that the relative fin height, relative fin width, relative fin pitch and density of 3 - d ift with staggered arrangement fins all have an effect on heat transfer and flow friction. especially, the effect of fin density is bigger
空氣換熱實驗的結果表明：肋叉排三維內肋管的相對肋高、相對肋寬、相對肋間距以及肋密度均對其對流換熱特性有影響，其中肋密度的影響較大。 -
The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。 -
On the base of milling ball interaction during milling process, the powder height of each collision can be calculated. if the impact of milling ball takes as hertz elastic collision, the maximum real strain and the maximum tangential strain are obtained as follows, e, . , ln [ h, / ( h0 ? vrcos6 / 2 ) ] = vrsin6 / h0 ? / q, t2rt2 / 2om ~ h, j where s, p, v are maximum real strain, the maximum tangential strain, friction coefficient and the velocity of milling ball
對球磨過程中磨球相互作用作了一些假設后，可以計算出每次碰撞所獲得粉末體高度值；將磨球的碰撞作為hertz彈性碰撞，碰撞時的速度分解為法向速度和切向速度得出粉末的最大真應變和最大切應變為湖南大學材料物理與化學專業碩士論文r 。 -
If the planar failure arises without fixed plane in rock slope, the critical inclination of failure face is not only the function of slope angle and friction angle of failure face, but also the function of the height of failure part, the cohesion of failure face, and unit weight of failure body
摘要在巖石邊坡中，當出現平面滑坡時，如果邊坡內沒有確定的滑面，滑面的臨界傾角不僅僅是邊坡傾角和破壞面摩擦角的函數，而且還應該是滑體高度、破壞面的黏聚力和巖體重度的函數。 -
According to deduction and calculation the critical inclination of failure face has a linear relation with the slope angle, a quadratic function relation with the friction angle of failure face, a logarithmic relation with the height of failure part, a negative exponent relation with the cohesion of failure face, and a quadratic function relation with the unit weight of failure body
通過推導和計算得知，滑面的臨界傾角與邊坡傾角呈線性關系，與破壞面摩擦角呈二次函數關系，與滑體高度呈對數關系，與破壞面的黏聚力呈負指數關系，與巖體重度呈二次函數關系。 -
Material is fed into the spiral spring by axial thrust and cen - trifugal force that is generated by high speed rotation of linear spiral spring, where, the material is pushed forward axially due to internal friction of the material and axial force of the spiral spring, thus reaching the conveyance purpose, and the conveyance height can be determined according to users " requirement
該機是通過繞性螺旋形彈簧的高速旋轉所產生的軸向推力和離心力，將被輸送的物料送入螺旋彈簧內，再由物料的內摩擦及彈簧螺旋的軸向力，將物料作軸向推移，達到輸送目的，輸送高度按用戶要求確定。 -
Some results have been shown as follows : 1. some main factors to rock slope stability were analyzed by sensibility analysis. the conclusions are shown that earthquake has a most influence on its stability, cohesion c and friction angle in the next one, groundwater level h in the third, and density p of rock masses and height h of slope minimal
通過對影響巖質高邊坡穩定性的主要因素進行敏感性分析，表明：地震作用對邊坡安全性的影響最大；滑動畫內聚力c和內摩擦角對安全系數k值的影響次之；地下水位高度h對安全系數有一定的影響；而坡體密度和高度h對邊坡安全性的影響相對較小，有時可以不予考慮。 -
The transition to the turbulent flow happened when the reynolds numbers ( based on the height of mini - channel ) were between 1200 and 1400. and it was found that the critical reynolds numbers became larger when the friction - resistance factor got smaller
流動在雷諾數（通道高度雷諾數）為1200 1400時發生轉捩，且摩阻越小的通道發生轉捩的雷諾數越大。
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