plane n. 懸鈴木屬樹木。 plane2 n. 1.平面,水平面,面。 2.(知識(shí)等的)發(fā)達(dá)程度,水平,階段。 3.【航空】機(jī)翼面;〔常 pl.〕飛機(jī)。 4.(結(jié)晶體的)一面。 5.【礦物】總巷道。 an inclined plane 斜面。 a plane of polorization 【礦物】偏振(平)面,偏光面。 a plane of reference 【數(shù)學(xué)】基礎(chǔ)(平)面,對(duì)照面。 a plane of symmetry 對(duì)稱面。 an elevating plane 【航空】升降翼。 a rear plane 【航空】尾翼,方向翼。 a robot plane 無(wú)人駕駛飛機(jī)。 a rotor plane 旋翼機(jī)。 on the same plane as 和…同一水準(zhǔn)[程度]。 adj. 平的;在平面上的,平面圖的。 a plane chart 平面海圖。 a plane figure 平面圖。 vi. 1.滑行;(比賽船等)在水面上飛一樣滑跑。 2.〔口語(yǔ)〕坐飛機(jī)去旅行。 n. 平刨;鏝。 a jack plane 粗刨。 vt.,vi. 刨平;鏝平。
Moreover , aspherical surface error in sagittal plane was found , and bended beam ’ s radius r , position s of concentrated load p and length l of arc which were suited for aspherical figure accuracy of both tangential plane and sagittal plane were given 此外,本文對(duì)有限元法分析過(guò)程也進(jìn)行了簡(jiǎn)要說(shuō)明,并用有限元軟件patran / nastran對(duì)上述曲梁的計(jì)算進(jìn)行了復(fù)核。
The mathematic model of the ultra - thin spherical mirror is to be treated as elastic thin shell . then the predigested model , i . e . , bended beam , used in qualitative analysis was proposed , and its deflection and stress formulas under the freely supported condition were set up . based on an off - axis aspherical primary mirror , the relationship of aspherical surface error ( rms ) in tangential plane with bended beam ’ s radius r , position s of concentrated load p and geometry length l of arc was analyzed 根據(jù)這一設(shè)想,本文建立了超薄鏡的數(shù)學(xué)模型?薄殼,并提出了強(qiáng)制力作用下超薄鏡的簡(jiǎn)化模型?曲梁,推導(dǎo)了曲梁在簡(jiǎn)支情況下受力變形的撓度公式,并結(jié)合一個(gè)實(shí)例,計(jì)算出曲梁變形后與所需非球面的面形殘差( rms )在子午方向與曲梁弧長(zhǎng)l 、曲梁半徑r及集中力位置s的關(guān)系及滿足面形精度的r和s范圍,分析了弧矢方向的rms ,得出了同時(shí)滿足子午和弧矢方向面形要求的l 、 r和p 。