point contact 中文意思是什麼
point contact
解釋
點接觸-
As we talked about bilateral relations, i mentioned the utility of a permanent point of contact.
當我們談到雙邊關系時，我提到了設立一個永久接觸點所帶來的好處。 -
Invention of the point contact transistor by brattain and bardeen. ( december 23 )
12月23日，布拉頓和巴丁發明點式電視晶體管。 -
Secant algorithm in multi - point contact machining
多點切觸加工的割線法 -
Rolling bearings - four - point contact ball bearings - axial internal clearances
滾動軸承.四點接觸球軸承.軸向游隙 -
We were not at any point contact with the enemy.
我們在任何一個據點都沒有和敵人發生接觸。 -
According to the differential geometry theory, the principle curvatures and principle relative curvature of the spur gear and the fg in line contact and point contact, the tooth surface relative speed and the tooth contact interface are analyzed, whose distributing on the tooth surface are visualized by computer
在齒面的幾何特性研究中，利用微分幾何的原理分析了圓柱齒輪和面齒輪的齒面曲率、線接觸和點接觸面齒輪傳動的主誘導法曲率以及嚙合過程中齒面的相對速度和接觸區域計算問題，並獲得有益的結論。 -
Rolling bearings - three - point and four - point contact ball bearings - boundary dimensions
滾動軸承三點和四點接觸球軸承外形尺寸 -
Rolling bearings ; angular contact radial ball bearing, single row ; four - point contact bearing
滾動軸承.單列向心止推球軸承.四點接觸滾動軸承 -
Numerical analysis of instantaneous elestohydrodynamic lubrication in point contact of spiral bevel gear with high speed
高速弧齒錐齒輪點接觸瞬態等溫彈流數值分析 -
Rolling bearings - angular contact radial ball bearing, single row - four - point contact bearing ; geometric and characteristic
滾動軸承.單列徑向止推滾珠軸承.四點接觸軸承.第4 bb -
From analysis of the test results the conclusions can be obtained as follow : the coefficient of friction under line contact is same as under point contact
研究表明：線接觸微動摩擦因數變化與點接觸形式相同；位移幅值在部分滑移區時，表面粗糙度對表面磨損有影響。 -
It is different from under point contact that there is no stick area under line contact in the partial slip regime, and load distribution within line contact area is uneven due to roughness of surface
磨痕分析表明，承載區域接觸不均勻，存在虛接觸區域，其大小與表面粗糙度有關，而接觸區域沒有不磨損的粘著區，不同於點接觸形式。 -
Thermal analysis result was imported into structural model and point - point contact elements were used to simulate contact state of different material, and displacement and stress field of nozzle was calculated under thermal loading and working pressure
導入溫度場分析結果，並用點點接觸單元模擬不同材料之間的接觸狀態，計算了溫度和壓力載荷聯合作用下噴管的位移場和應力場。 -
The curvature interference of the gear and the influence of radius of the mill - cutter, axial misalignment, and center distance on meshing are analyzed. based on these analyses, propose two methods to achieve point - contact : to change the radius of the mill - cutter and increase the center distance
在分析了弧齒線圓柱齒輪的嚙合傳動不產生曲率干涉的條件和刀盤展成半徑、軸線平行度誤差、中心距對嚙合影響的基礎上，提出了點接觸弧齒線圓柱齒輪實現的兩種方案:調整刀盤展成半徑和增大中心距。 -
Point - contact rectifier
觸點式整流器 -
Internal micrometers with three - point contact
三爪內徑千分尺 -
Internal micrometers with two - point contact
兩點內徑千分尺 -
Point - contact transistor
觸點式晶體管 -
Point - contact diode
觸點式二極體 -
Major contents of the thesis are as follows : 1 ) based on brief introduction of the profile theory about the spatial cam sliding tooth transmission, those formulas correlated to the mechanics feature are deduced to calculate the geometrical parameters ; 2 ) according to the hertz contact theory in elastic - mechanics, the mechanics analysis model of the spatial cam sliding tooth transmission is built up ; the deformation harmonizing conditions at each contact point are erected ; the force analysis formulas of point contact are deduced and the resolution method is presented ; 3 ) the numerical calculating software about the deformation of the spatial cam sliding tooth transmission is developed ; using the software, the force characteristics of the spatial cam sliding tooth transmission are calculated with different design parameters ; the general law on force characteristics of this transmission is obtained
論文的主要內容包括： 1 ）在簡要介紹空間凸輪活動傳動齒廓理論的基礎上，推導了與力學特性相關的幾何參數的計算公式。 2 ）建立了空間凸輪活動傳動的力學分析模型；依據彈性力學赫茲接觸理論，建立了各接觸點之間的變形協調條件，推導了空間凸輪活齒傳動點接觸受力分析公式，並給出了求解的方法。 3 ）開發了關于空間凸輪活動傳動受力變形的數值計算軟體；應用該軟體，對不同設計參數的空間凸輪活齒傳動的受力特性進行了數值計算，獲得了該傳動受力變形的一般規律。
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