E . on the basis of drawing up the discrete rod element , the preprocessor procedure forming the element formation of arbitrary orientation rock bolt is worked out . f 在編制離散式桿單元的基礎(chǔ)上,編制了生成任意巖體錨桿單元信息的前處理程序,從而克服了常規(guī)的有限元算法中必須將錨桿布置于單元結(jié)點(diǎn)的常規(guī)做法。
The tasks executed by single robot are limited in some areas . single robot cannot accomplish such tasks as putting operated object in given arbitrary orientation and transporting some heavy and large objects 但是單個(gè)機(jī)器人并不是萬能的,其所能執(zhí)行的任務(wù)是有限的,如在執(zhí)行要求把操作的物體放在任意指定的方位、搬運(yùn)量重體大的物體等任務(wù)時(shí),僅僅依靠單個(gè)機(jī)器人是無法完成的。
For example , if one of the actuator fails , conventional feedback algorithms can no longer position a spacecraft to arbitrary orientation while this algorithm remains viable . preliminary investigations of the mpc approach to attitude control lead to the following conclusions : i 例如:如果飛行器三軸推力器中的某一軸發(fā)生故障,那么常規(guī)的反饋算法將無法把飛行器定位到給定的方向,但f - mpc算法則可勝任這一任務(wù)。
An approach is brought forward to consider arbitrary orientation rock bolt , in this model while forming the calculation mesh , the orientation of the anchor need n ' t consider , only the coordinate formation of starting point and destination of the rock bolt is needed , the formation of rock bolt in combination element can be formed automatically 闡述了任意巖體錨桿的計(jì)算模型,該模型在形成計(jì)算網(wǎng)格時(shí)可不必考慮錨桿的方位,只需賦予錨桿的起點(diǎn)與終點(diǎn)的坐標(biāo)信息,即可自動(dòng)形成錨桿在組合單元中的信息。
Based on the method of cell ( moc ) , the effective elastic properties of resined fiber bundle with parallel or arbitrary orientation was studied , and a micro - mechanical model of resined plain - woven carbon fabric was established with the classical laminate theory , then , the method of calculation of the elastic moduli of resined plain - weave carbon fabric was presented , and can be extended to the whole carbon / phenolic composite 基于元胞法( moc )計(jì)算了預(yù)浸樹脂的平直以及任意取向的纖維束的有效彈性常數(shù)。基于經(jīng)典層板理論用替代層法建立了預(yù)浸樹脂平紋機(jī)織碳布的細(xì)觀力學(xué)模型,進(jìn)而給出了預(yù)浸氨酚醛樹脂的平紋機(jī)織碳布的彈性模量的計(jì)算方法,該方法可推廣到碳酚醛復(fù)合材料。