By the method of transforming the node DOF of the space bar element to the node DOF of the space virtual laminated element ,that is,the node of bar element need not fixed on the node of space solid element,the prestressed concrete structure were simulated together.

通過(guò)自由度變換亚洲一区视频在线观看，把空間桿單元的節(jié)點(diǎn)自由度用空間虛擬層合單元的節(jié)點(diǎn)自由度來(lái)表示mianfeihuangseshipin，即桿單元的節(jié)點(diǎn)無(wú)需固定在體單元節(jié)點(diǎn)上，共同模擬了預(yù)應(yīng)力混凝土結(jié)構(gòu)午夜理理伦电影A片无码。

Besides all six degrees of freedom of ship rigid body, other inportant generalized freedom such as aircushion pressure, freedom of seals and generalized coordinates of structural vibration are also included in the model in accordance with the nature of hybrid catamaran.

分析模型中除了船舶剛體運(yùn)動(dòng)的六個(gè)自由度外日本精品视频在线观看，還包括了其它重要的廣義自由度-氣墊壓力、圍裙運(yùn)動(dòng)的自由度以及結(jié)構(gòu)各階振形所對(duì)應(yīng)的主坐標(biāo)二级免费黄片国产播放久久久,噜噜噜。

But with its variety and specialization , three-axial non-instaneous envelope method had not meet needs. So four-axial non -instaneous envelope method was set forth firstly in this article, which is based on three-axial non-instaneous envelope and spiral rod compressor rotator speciality.

然而隨著螺桿應(yīng)用范圍的擴(kuò)展亚洲人人级，螺桿型線不斷復(fù)雜化、多樣化国产特黄品爱网，三自由度無(wú)瞬心包絡(luò)銑削法已不能滿足部分型線的加工要求，為此本文在三自由度無(wú)瞬心包絡(luò)銑削法的基礎(chǔ)上中文一级免费视频，針對(duì)螺桿壓縮機(jī)陰陽(yáng)轉(zhuǎn)子的特性国产无遮挡免费视频一区二区，在國(guó)內(nèi)首次提出四自由度無(wú)瞬心包絡(luò)銑削螺旋曲面的新方法亚洲黄黄，趕超國(guó)際螺旋曲面加工技術(shù)水平，具有重要的理論和現(xiàn)實(shí)意義人人干探花。

Taking precise microminiature mechanical systems as assembly objects, the reconfigurable 12 degree of freedom microassembly technology and realization method are systematically proposed, including modules such as 6-DOF macro-robot, 6-DOF precise micromotion worktable, micro gripper integrated micro detection and feedback, and micro pose detection device, and so on.

以精密微小型機(jī)械系統(tǒng)為裝配對(duì)象国产女人天天弄高清免费，提出了可重構(gòu)12自由度微裝配技術(shù)和實(shí)現(xiàn)方法，具體包括6自由度宏動(dòng)機(jī)器人老熟妇乱伦视频、6自由度精密微動(dòng)工作臺(tái)成色伊甸同上、集成微力檢測(cè)與反饋的組合式微夾持器和位姿檢測(cè)裝置等可重構(gòu)模塊。

Around the topic, the weak points of the traditional platform is analyzed first, such as complex arithmetic, long calculating time, high needs of hardware and so on. A real time control method based on virtual simulation is suggested to separate the complex positive/negative calculation of space kinematic and real time motion control. And a"3-2-1"type 6DOF platform is designed with the reference of the MAST (Multi-Axis Shaking Table) of MTS. The kinematic and dynamic calculation of the platform is finished. According to the calculating result, the control system of the"3-2-1"type 6DOF platform including 6 linear servo electric cylinders is designed and constructed. And the professional software Pro/E is used to do the 3D model and 6DOF motion simulation of the platform. The motion curves of the pistons of the 6 cylinders are exported with the simulation. At last the control software is programmed with Microsoft Visual Basic 6.0 and realizes the functions with the commands of GE series motion controllers. When loading the motion curves exported with the simulation, every cylinder can follow the curve very well and the platform realizes the hoped 6DOF motion.

圍繞選題三级片XX，本論文首先分析了傳統(tǒng)的運(yùn)動(dòng)平臺(tái)控制方法所存在的算法復(fù)雜免费黄色視頻网站、解算耗時(shí)長(zhǎng)、硬件需求高的缺點(diǎn)国产激情毛片，提出了一種基于虛擬仿真的實(shí)時(shí)控制方法国产毛片盗摄视频，該方法將復(fù)雜的空間運(yùn)動(dòng)學(xué)正、反解與實(shí)時(shí)運(yùn)動(dòng)控制相分離亚洲一级A片A毛；之后欧美超碰视屏，參考MTS公司的MAST多軸振動(dòng)平臺(tái)，設(shè)計(jì)了新型的"3-2-1"型六自由度平臺(tái)色播播电影，并進(jìn)行了運(yùn)動(dòng)學(xué)及動(dòng)力學(xué)計(jì)算国产精品免费久久久久影院无码，根據(jù)相關(guān)計(jì)算結(jié)果，設(shè)計(jì)與搭建了包括驅(qū)動(dòng)6個(gè)直線伺服電動(dòng)缸在內(nèi)的"3-2-1"型六自由度平臺(tái)控制系統(tǒng)草碰在线播；接著视频色色色人妻，使用Pro/E對(duì)"3-2-1"型六自由度平臺(tái)進(jìn)行了三維建模和六自由度運(yùn)動(dòng)學(xué)仿真，并由仿真直接獲得了6個(gè)直線伺服電動(dòng)缸的活塞桿的相應(yīng)運(yùn)動(dòng)曲線亚洲中文精品图区；最后使用Microsoft Visual Basic 6.0編寫(xiě)了控制軟件界面国产视频黄搜索，通過(guò)調(diào)用GE系列運(yùn)動(dòng)控制卡的各種命令函數(shù)實(shí)現(xiàn)了控制系統(tǒng)的相關(guān)功能，而當(dāng)加載仿真得到的各缸運(yùn)動(dòng)曲線后538免费在线视频精彩观看，每缸均能很好地跟蹤輸入曲線亚洲欧美在线视频免费，使平臺(tái)實(shí)現(xiàn)了期望的多自由度運(yùn)動(dòng)。

The long V block putted in the arch ribbed plate to limit two degrees of freedom in x axis and the z axes two degrees of freedom, the iron putted in the hole end limit to the degree of freedom which circle the y rotation of axis, the supporting block putted under the ribbed plate to limit degree of freedom along the y axis migration.

長(zhǎng)V型塊置于拱形肋板后限制x軸的兩自由度和z軸的兩自由度黄业网站免费在线观看，擋鐵置于孔端限制繞y軸旋轉(zhuǎn)的自由度黄色视频.免费观看网站，支承塊置于肋板下方限制沿y軸移動(dòng)的自由度。

Designing space mechanism run into question at first is that correct to confirm space degree of freedom of organization, but calculating many degrees of freedom, seal more ring, harmony wave gear wheel organization, space degree of freedom of organization of mixing with traditional degree of freedom must be very tedious; Calculating general form seal ring low packs of space degree of freedom of organization can be limited greatly too.

設(shè)計(jì)空間機(jī)構(gòu)時(shí)人人做人人爽国产视，首先遇到的問(wèn)題是要正確確定空間機(jī)構(gòu)的自由度乱论强奸欧美，然而，用傳統(tǒng)空間機(jī)構(gòu)自由度公式去計(jì)算多自由度国产精品三区视频、多封閉環(huán)禁止18岁观看、諧波齒輪機(jī)構(gòu)、混合型空間機(jī)構(gòu)的自由度時(shí)，必須進(jìn)行變換毛片免费全部播放无码直播；計(jì)算一般單封閉環(huán)低副空間機(jī)構(gòu)自由度時(shí)免费一级A片刺激视频在线观看，也會(huì)受到很大限制。

Based on the instantaneous motion of the moving platforms, the uncertainty configuration conditions and simplified uncertainty configuration equations are obtained for the widely studied parallel manipulators, such as planar 3-DOF parallel manipulator, spherical 3-DOF parallel manipulator, 6-SPS triangular platform parallel manipulator, three-branch 6-DOF parallel manipulator, twotriangular-platform parallel manipulator, DELTA parallel manipulator, 5-DOF parallel manipulator, two-tetragonal-platform parallel manipulator, pentagonal platform parallel manipulator and Stewart platform parallel manipulator.

采用這一方法欧美理论大片清免费观看，根據(jù)國(guó)內(nèi)外常用的并聯(lián)機(jī)器人機(jī)構(gòu)的形式亚洲A片不卡网站，建立了平面3自由度并聯(lián)機(jī)器人、球面3自由度并聯(lián)機(jī)器人国产精品ⅴa无码一区二区、三角平臺(tái)并聯(lián)機(jī)器人酒色色色网站、三支鏈6自由度并聯(lián)機(jī)器人、雙三角平臺(tái)并聯(lián)機(jī)器人视频一区无码在线、DELTA并聯(lián)機(jī)器人日韩人妻中文在线综合、5自由度并聯(lián)機(jī)器人、雙四角平臺(tái)并聯(lián)機(jī)器人无码免费毛片毛机在线ww、五角平臺(tái)并聯(lián)機(jī)器人和Stewart平臺(tái)并聯(lián)機(jī)器人的奇異位形條件方程www.1区，除了Stewart平臺(tái)并聯(lián)機(jī)器人外，這些條件方程均為低于6階的行列式黄色在线专区，機(jī)器人結(jié)構(gòu)類(lèi)型不同呦呦导航在线，其簡(jiǎn)化程度各不相同。

Secondly,based on rigid-body kinematics,the model of degree of freedom was formulated to describe the relationship between the machining requirement and the theoretical constraint degree of freedom .

工件自由度的合理約束是夾具設(shè)計(jì)的關(guān)鍵国产精彩小视频，基于定位原理的數(shù)學(xué)模型男人的免费网站网站，根據(jù)齊次線性方程組解結(jié)構(gòu)的性質(zhì)，首先推導(dǎo)了三個(gè)定位方案的合理性判據(jù)国产永久亚洲18禁在线；然后亚洲一边摸一边插在线视频，基于剛體運(yùn)動(dòng)學(xué)，建立了描述加工要求和理論約束自由度之間關(guān)系的自由度模型91视频网站入口；最后经典1页日韩中文字幕视频在线，利用典型實(shí)例詳細(xì)討論了自由度模型及合理性判據(jù)的分析應(yīng)用過(guò)程。

The new rT joint not only has two rotation axes that intersect at right angle,but also has another rotational degree of freedom which can be used to modify the assembly of other joints.This can change the mobility of the parallel mechanisms that assembled with the new rT joints and leads to two types of metamorphic paralllel mechanisms:In the first type,the mechanism changes its topology by turning the new rT joints in all limbs into different configurations which reconfigures the constraints within the limbs or the assembly of all the limb constraints.This change of mobility is completed by two cases.One is illustrated by a 3PS and a 3C parallel mechanism,by altering the rT joint into different configurations there will produce or reduce local degrees of freedom and thus change the constraits to the moving platform.This qualifies the 3PS and 3C to have variable mobility from 3 through to 6 and from 1 through to 6 respectively.

該鉸鏈除了一般Hooke鉸的兩個(gè)軸線互相垂直相交的旋轉(zhuǎn)自由度外se色综合w，還增加了一個(gè)可以調(diào)節(jié)該兩個(gè)軸線之一的姿態(tài)的一個(gè)旋轉(zhuǎn)自由度无码操B在线播放，通過(guò)此自由度調(diào)節(jié)該rT鉸到不同的裝配構(gòu)型，可以改變用其裝配的并聯(lián)機(jī)構(gòu)的自由度欧洲一级电影免费播放视频，由此產(chǎn)生兩類(lèi)新型的并聯(lián)變胞機(jī)構(gòu)：一類(lèi)是機(jī)構(gòu)的各個(gè)支鏈中都有rT鉸jizz18丝袜，該鉸鏈的不同構(gòu)型可以改變各支鏈對(duì)運(yùn)動(dòng)平臺(tái)的約束或整個(gè)支鏈組的組合形式而改變機(jī)構(gòu)的自由度狀態(tài)，3PS和3C屬于前者wwww黄色网站，通過(guò)調(diào)節(jié)rT鉸到不同構(gòu)型可以使其支鏈產(chǎn)生或消失局部自由度亚州激情中文字幕，從而減少或增加支鏈對(duì)運(yùn)動(dòng)平臺(tái)的約束，使得并聯(lián)變胞機(jī)構(gòu)3PS和3C分別具有自由度從3變到6和從1變到6的能力欧美老妇女性爱网站；3P屬于改變支鏈組組合形式的機(jī)構(gòu)久久艹91，其rT鉸的不同構(gòu)型將改變整個(gè)支鏈組的幾何約束組合，使得并聯(lián)變胞機(jī)構(gòu)3P可以有三轉(zhuǎn)動(dòng)、三平動(dòng)或三平移(來(lái)源：ABCded9de論文網(wǎng)www.abclunwen.com)一轉(zhuǎn)動(dòng)的自由度形式人人曰。

ankylosis：自由度減損

"anisotropic factor","各向異性因子" | "ankylosis","自由度減損" | "anniversary winds","周年風(fēng)"

Degree-of-Freedom arrows：自由度箭頭

Degree less than minimum 階數(shù)小于最小值 | Degree-of-Freedom arrows 自由度箭頭 | Degree-of-Freedom indicators 自由度指示器

degree of freedom：自由度

所有三維空間控制設(shè)備的共同特征是至少能夠控制六個(gè)自由度(Degree of Freedom),對(duì)應(yīng)于描述三維對(duì)象的寬度欧美乱交牲交乱频、高度黄页网在线观看免费视频、深度、俯仰(pitch)角国产拍精品、轉(zhuǎn)動(dòng)(yaw)角和偏轉(zhuǎn)(roll)角.

degree of freedom：自由度;維

degree 度;程度 | degree of freedom 自由度;維 | dehumidifier 抽濕機(jī)

degree of freedom：自由度(結(jié)構(gòu)分析)

固定度(結(jié)構(gòu)分析) degree of fixity | 自由度(結(jié)構(gòu)分析) degree of freedom | 反動(dòng)度(渦輪機(jī)) degree of reaction

redundant degree of freedom：冗余自由度

人字齒輪 herringbone gear | 冗余自由度 redundant degree of freedom | 柔輪 flexspline

redundant degree of freedom：多余自由度

多余拘束 redundant constraint | 多余自由度 redundant degree of freedom | 機(jī)器人之多余可動(dòng)度 redundant mobility of a robot

redundant degree of freedom：冗于自由度

reciprocating motion 往復(fù)運(yùn)動(dòng) | redundant degree of freedom 冗于自由度 | relative motion 相對(duì)運(yùn)動(dòng)

passive degree of freedom：局部自由度

靜密封 static seal | 局部自由度 passive degree of freedom | 矩陣 matrix

freedom：自由度

計(jì)量為什么非常關(guān)心自由度(freedom)這個(gè)概念?自由度的經(jīng)濟(jì)或者直觀含義是什么?為什么在估計(jì)參數(shù)時(shí)自由度越多越好?