( 2 ) on the research of the software ' s architecture of motion control , the high - speed and high - accuracy algorithm of interpolate for parameter curve is proposed , which is adaptive for speed ( 2 )研究了高速數(shù)控運(yùn)動(dòng)控制的軟件結(jié)構(gòu),并應(yīng)用二次插補(bǔ)策略,提出了一種基于參數(shù)曲線(xiàn)的進(jìn)給速度自適應(yīng)的高速高精插補(bǔ)算法。
The approach includes ( 1 ) obtaining the cutter - location data based on parameter curves . ( 2 ) tessellation of the trim nurbs surfaces into triangles . ( 3 ) interference detection and tool - position correction 在曲面的參數(shù)線(xiàn)上規(guī)劃刀位軌跡,將曲面用三角片離散逼近,利用刀具曲面與三角片的幾何相關(guān)性進(jìn)行干涉檢查及刀位修正。
Two layers vibration - isolating unit has been compared with single layer one , its delivering rate of force and a group of parameter curves have been obtained based on the characteristics of attenuation and stability 根據(jù)衰減和穩(wěn)定特性,對(duì)單層和雙層隔振系統(tǒng)作了分析比較,為雙層隔振系統(tǒng)推導(dǎo)出傳遞率的一般方程,并求得一組影響傳遞率的各種參數(shù)曲線(xiàn)。
From the simulation , we can get some parameter curves of landing gear . by analyzing these curves and the methods with two - masses model , the linear state equation of landing gear during landing process was established 基于參數(shù)曲線(xiàn)分析和二質(zhì)量模型建立了起落架著陸的線(xiàn)性狀態(tài)方程,應(yīng)用現(xiàn)代控制理論對(duì)方程進(jìn)行分析并結(jié)合matlab軟件對(duì)其進(jìn)行著陸動(dòng)態(tài)仿真。
In order to real - time displaying the parameters and the predicts result , developed the parameters curve displaying module and the black - and - white / colored seismic sections displaying module , which provide convenient conditions for the comparative choice of many kinds of parameters and outputting the result 為了實(shí)時(shí)顯示參數(shù)及預(yù)測(cè)結(jié)果,相應(yīng)開(kāi)發(fā)了地震剖面及參數(shù)剖面的黑白彩色顯示模塊,為多種參數(shù)的比較選擇及結(jié)果的輸出創(chuàng)造了便利條件。
The existed material fatigue performance test curves are dealt with and analyzed , and the non - dimensional stress - strain curve , tangent modulus factor curve and fatigue life curve are drawn based on the experiment data , and these three non - dimensional parameter curves are used to find the inherent rules that the test curves can be replaced each other to some extent . it can be concluded that if the common character and system error of these materials are found , the test curve of a certain material can be used for reference by another material . this is a simple approach about fatigue life estimate and is engineering practical 對(duì)已有的材料力學(xué)疲勞性能試驗(yàn)曲線(xiàn)進(jìn)行分析整理,利用試驗(yàn)數(shù)據(jù)繪制了相對(duì)應(yīng)力應(yīng)變曲線(xiàn)、切線(xiàn)模量因子曲線(xiàn)和疲勞壽命曲線(xiàn),利用這三種無(wú)量綱參數(shù)曲線(xiàn)發(fā)現(xiàn)了其中存在的規(guī)律性,即在某種程度上實(shí)驗(yàn)曲線(xiàn)可以互相取代,并用試驗(yàn)數(shù)據(jù)對(duì)此進(jìn)行了討論,并由此推斷,如果找出材料彼此的共性或彼此之間的系統(tǒng)誤差就可以將一種材料的試驗(yàn)曲線(xiàn)供其它材料參考使用,這是一種估算材料的疲勞壽命的簡(jiǎn)便方法,對(duì)工程而言具有實(shí)用性。
We put more attention on the study of 3d graphic rendering technology , such as shading model and ray tracing . shading model is compared of simple shading model and whole shading model . studied the radiosity and texture mapping , mainly about the parameter curve surface texture mapping , two steps texture mapping , environment texture mapping and mip - map mapping 研究了光照模型及光線(xiàn)跟蹤技術(shù),包括簡(jiǎn)單光照明模型、整體光照明模型;分析了輻射度方法及紋理映射技術(shù),研究了紋理映射中參數(shù)曲面的紋理映射技術(shù)、兩步法紋理映射、環(huán)境映射、 mip - map映射等映射技術(shù)。
This paper summaries the researches on the new schemes of parameter curves and surfaces modeling - curves and surfaces modeling of trigonometric polynomial , which includes curves and surfaces of t - bezier , t - b - spline , tc - bezier and tc - b - spline . hc - b zier curves and surfaces are also discussed in the space of hyperbolic functions in the end 本文主要對(duì)參數(shù)曲線(xiàn)曲面造型的一種新方法? ?三角多項(xiàng)式曲線(xiàn)曲面進(jìn)行了深入研究,其內(nèi)容主要包括t - b zier曲線(xiàn)曲面、 t - b樣條曲線(xiàn)曲面、 tc - b zier曲線(xiàn)曲面和tc - b樣條曲線(xiàn)曲面。