5EXCITE_basic_training_连接副

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高考英语词性转换汇总

高考英语词性转换汇总

高考英语词性转换汇总A1.able -- ability(n.), disability (反)__ disable(反形) 能力,能够2.absent-- absence(n.)缺席3.absolute-- absolutely (adv.), absoluteness (n.)绝对的(certainly)4.absorb-- absorbed(adj.) 专心的,吸收(be absorbed in)5.accept-- acceptable(adj.), acceptance (n.) 接受6.access-- accessible(adj.) 使用,进入,可接近的(be accessible to/have access to)7.accident--accidental(adj.),accidentally (adv.)事故,偶然(by accident)8.accomplish-- accomplishment (n.)完成,实现9.achieve-- achievable(adj.), achievement (n.) 到达,完成10.act-- action (n.)11.active-- activity (n.), activate (v.) 积极的(positive)12.actual-- actually__ (adv.) 事实上,实际上(in fact)13.advertise_advertisement(n.)广告1.addict-- addicted(adj.), addiction (n.) 沉迷于,上瘾的(be addicted to)2.addition-- additional (adj.) 附加,除此之外(in addition to)3.adjust-- adjustment(n.) 调整,调节(adjust to )4. admire-- admirable(adj.), admiration (n.)赞美,羡慕5. admit-- admission(n.) 承认(permit)6. advance-- advanced(adj.) 发展,前进7.advantage—advantageous(adj.) 优势(disadvantage劣势,不足)8. advise--advice(n.) 建议(suggest)9.affect(影响)--effect (n.) effective(adj)影响(influence, havean effect on…)10.age-- aged(adj.) 年老的11.agree--agreeable(adj.),agreement(n.)12.agriculture--agricultural(adj.)农业13. allow--allowable(adj.), allowance(n.) 允许(allow sb to do sth/ allow doing sth)14.amaze—amazing/amazed(adj.);amazement (n.)使吃惊1.ambition-- ambitious(adj.)野心,追求2.amuse—amusing/amused(adj.); amusement (n.) 娱乐,快乐3.analyze-- analysis(n.); analytic (adj.)分析4.ancient-- anciently(adv.)远古的,古代5.angry-- _anger(n.) 生气6.announce-- announcement(n.)宣布(declare, claim)7.annoy-- annoying(adj.); annoyance (n.)打搅,扰乱8.annual-- annually(adv.)年度的9.anxious--anxiety(n.);anxiously(adj)担心10.apologize--apologetic(adj.);apology (n.) 道歉11.appear-- appearance(n.) 出现,外貌12.apply-- applicant,application (n.)申请(apply for)13.appoint-- appointed(adj.);appointment (n.)任命,约定14.appreciate-- appreciation(n.)欣赏,感激15.approve-- approval(n.)赞成16.argue-- argument(n.)争论17.arrange-- arrangement(n.)安排1. arrive-- arrival(n.)到达2. assist-- assistant, assistance(n.)帮助,助理3. associate-- association(n.)联系4. astonish-- astonishment(n.);astonished (adj.) astonishing(adj)使惊讶5. attend-- attendance(n.)参加,出席6. attract-- attractive(adj.); attraction (n.)吸引7. avail-- available(adj.)有用的B1.bath-- bathev.沐浴2. beautiful --beautyn. beautify v.漂亮,美化3.believe-- believable(adj.) 相信4.benefit __beneficial__adj.利益,好处5.brave bravery n._bravely (adv) 勇敢的、6.breath breathe_v. breathless(反形)呼吸(out of breath上气不接下气)C1.calculate_caculation_ n. 计算2.careful _careless_(反)_carelessness(反名)_care_v._care_(n)3.caution __cautious_ adj. 小心4.celebrate _celebration_n. 庆祝5.center n. __central_adj. 中心6.change _changeable_ adj. 变化7.character characteristic_ adj.个性8.cheer cheerful adj. 开心9.choose choice n. 选择10.cloud cloudy adj. 云,多云的-fort comfortable adj.舒适pete petitor (人)_competitive(adj) 竞争14.concentrate _concentration_ n. 集中注意力(concentrate on)15.conclude _conclusion n. 结论16.confident confidence n.信心17.congratulate congratulation n. 祝贺(congratulation on sb)18.connect connection n. 连接19.consider considerateadj. consideration n. 思考20.construct constructionn.建造21.contribute contribution n. 贡献22.convenience convenient adj. 方便的23.correct correction n. 正确的24.curious curiosity n.好奇的25.creat creation(n) creator (人)创造D1.danger-- _ dangerous (adj.) 危险2.dark-- darkness (n.)黑暗3.date-- dated / dateless (adj.) 日期4.decide-- decision (n.)决定5.deep-- depth(n.); deepen (v.) 深度6.defend-- defense (n.)保卫,防护7.describe-- _description_ (n.); descriptive (adj.) 描述8.determine--determined (adj.); _ determination (n.)决定9.develop--development_(n.)developing / developed (adj.) 发展10.devote-- devoted_ (adj.); _ devotion _ (n.)贡献1.differ_different;_(adj)_difference__(n)不同2.difficult--_difficulty (n.) 困难3.disadvantage-- disadvantageous(adj.) 劣势4.disagree-- disagreeable(adj.); disagreement _ (n.) 反对5.disappoint--disappointed/disappointing(adj.);disappointment(n.)失望6.discourage-- discouraged/ discouraging _ (adj.); _ discouragement (n.) 阻止,沮丧7.discover-- _discovery _ (n.)发现8.discuss--discussion (n.) 讨论E cate education n. educator_n. (人)2.effect _ effectiveadj. affect (v)3.employ employment_n. employer(employee)n. (人)雇佣4.encourage encouragement__n. discourage(反)鼓励5.enjoy . enjoyable adj.joy (n)6.enter v. entrance_ n.entryn.7.equip . equipment n. equipped _(adj)设备8.exact exactly adv.正确9.examine examination n. 检查10.excite exciting/excited adj. excitementn.兴奋11.exist _.existence n. 存在12.explain .explanation n.解释13.express _.expression n. 表达,表情14.extreme extremely adv.极端F1.fail failure n. 失败2.fair fairness _ n.公平3.fluent _.fluency_ n. 流利4.fog foggy _ adj雾G1. gentle gently_adv.2. gift _ gifted adj.礼物,天赋3. govern government _ n. governor _(人) 管理,政府4. graduate graduation n.毕业5. guide _ guidance_ n._guide _ (人) 引导6. guilt guilty adj. guiltless(形反)内疚,H1.health healthyadj.2.heat heated _adj.加热3.high height _n.4.help helpful __ adj.helpless_ adj.5.hesitate hesitationn.犹豫6.honest honestly_ adj. _honesty_ n.老实,诚实-7.honor honorable_adj. honorably adv. 荣誉8.hope hopeful_ adj. hopeless_ (形反).9.horror_.horribleadj. horribly adv. 恐惧10.humo(u)r humorousadj._Humorless(形反). humorist _(人).11.hunger _ hungryadj._ hungrily adv.I1. ignore ignorancen. ignorant adj. 忽视2. legal illegal_(反)合法,不合法3. ill illnessn.4. imagine imagination_n._imaginable/imaginary adj. 想象5. immigrate immigration n. 移民6. important unimportant(反形)_importantly adv.7. impossible _ possible (反形). _impossibly __adv_ possibility _ (反名).不可能8. impress impression_n. impressive adj. impressively adv. 印象9. introducev. introduction n. 介绍10. invent invention n. inventor(人) 发明11. invite v. .invitation n. 邀请J1. joy joyful _adj.快乐2. judge judgment _ n . 判断,法官3. justice_.just_(adj)正义K1.kind _.kindness_(n)_ kindly _(adv) 和蔼的Lrge enlarge_ v. largely _(adv)ugh_ laughter_ n.zy __ laziness__ n. lazily (adv) 懒4.long length _ n.5.limit limited_adj. 限制6.live _ lively__ adj_ living adj活的7.lose __ loss_ n._ lost _(形)8.love lovely_adj.9.luck _ lucky adj luckily _ adv. unlucky_(反形)_ unlikely_(反形副)M 1. major majority _ n. 主要的2. manage managern(人).management _n. 管理3. mean meaning n.4. medical medicine _ n. 医学的5. memory memorial adj.记忆6.mistake mistaken_ adj. 错误7. mix mixture n. 混合8. mountain mountainous adj. 山9. move movement n. moving (adj)10.mud muddy _ adj. 泥11. music musical adj._ musician n.(人)N1 nation __ nationaladj. nationality n.国家2 .nature natural_adj. naturally adv 自然3 necessary necessity_n._ unnecessary_(反形)必要4 noisenoisy adj.5 north __ northern_ adj.O1 occupy occupation_ n.occupiedadj.占有、2 operate _operator n. _operation n.运转3 organize _ organization_ n. _ organizer _ n.组织4 office official _adj.P1 pain painful adj2. patient patient _n. patience n.耐心3 peace _ peacefuladj 和平.4 perfect _ perfectly adv .5 permit permission n. 允许6. physics _ physicaladj. physicist物理,身体的,物理学家7 poison poisonous adj. 毒药,有毒的8.please-----_ pleasedadj. pleasant adj. pleasure n.愉快的9.politics--_ politicaladj. politician(人)政治10.possible---possiblyadv. possibility n.可能11.prepare--.preparationn 准备-12.pride--_proud _adj.自豪13.private--_ privacyn.私人的14.promote----promotion_n.促进,提高15.pronounce--- pronunciation__n.发音16.protect---protection_n protectiveadj保护17.punish---punishment_n.惩罚R1.real--_really adv. reality/realization_n. Realize v.2.reason--_ reasonableadj _ unreasonable __(反形)3.relax---__ relaxation__n.4.rely-- reliable_adj.依靠5.religion--__ religiousadj 宗教6.remain_remaining _adj遗留,保留7.respect---__ respection_n. respectful/respectable _adj 尊重8.represent representative_ (人) 代表9.repeat ___repetition__(n)10. requirerequirement(n)需要11.reservereservation____(n) 保留12.responsible---_responsibility n.责任13.rob-__robbery_n.抢劫S1.safe--__safety__n.2.satisfy--_satisfied_adj_satisfaction__n满意3.science--scientist_(人)scientific_adj_scientifically_adv4.secure--__ security__n.安全5.self---__ selfish_adj--_ selfishness (n) unselfish_(反形)6.sense--_ sensibleadj感觉,明智的7.separate--_separation__n.分开8.serve---_service _n._servant_(人).服务9.silent---__ silencen.__ ,silently _(adv)10.sleep--_sleepy adj11.social---_society_n. socialism_n._socialist(人)12.specal--specalistn_speciallyadv13.spirit--_ spiritual_adj 净胜14.starve--_ starvation _n 饿死15..strong--_strength_n --strengthen_v16.succeed-- success_n -- successful adj17.suggest-- suggestionn 建议18.suitable--_suit _ v—suit n合适的19..survive -- survivaln 幸存20.surround--_ surrounding_adj周围T1.taste--_ tasty_adj2.terrible--_ terribly _adv3.thirst--__thirsty _adj4.traditiona--_.tradittional _adj 传统5.translate--_ translation_n--_,translator_(人)翻译6.treat-- treatment_n治疗7.true--truly __adv--truth_nU1. unconscious--__ conscious _(反形)_ consciousness_(反名) 无意识/有意识V1. value-- valuable _adj 有价值的2. vary--___ variety_n--__ various _adj不同W1. warm-- warmth__n 温暖2.weak-- weakness n_ weakly_(adv)虚弱3.wealth--_wealthy adj 财富4.week--_weekly_adj每周的5.wind--_ windy_adj 风,多风的6.wise--wisdom _n有智慧的7.young--__ youth_n年轻的。

BASIC_exercise

BASIC_exercise

1Categor y:ApprovedIRC5机器人教育训练练习题 初阶:安全事项设定示教器语言为中文。

为机器人设定一个正确的时间的操作。

查看机器人的信息提示。

机器人备份与恢复的操作。

移动机器人:熟悉手动操作画面(JOGGING ) 使用增量模式移动机器人 慢慢地移动机器人的轴1――6 慢慢地移动机器人的X Y Z 慢慢地在线性动作模式下移动机器人 慢慢地在重定位动作模式下移动机器人笔 记:………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………2熟悉机器人各个轴的原点标记位置 6-5-4-1-2-3 进行转数计数器的更新操作 学习一下快捷菜单各按键的作用。

IO 信号:调出需查看的IO 单元画面 对DO 信号进行置位操作 对DI 信号进行仿真的操作RAPID 程序:程序结构的认识新建一个程序模块(module ),名字为“TESTMOD ”在刚才新建的程序模块里,新建一个例行程序(Main ) 建一个例行程序“MOVING ”用MoveJ 指令,编写机器人从p1点到p2点的程序。

MoveJ p1,v100,fine,tool0;MoveJ p2,v100,fine,tool0;在上述两条移动指令中增加等待3秒的指令。

basic的用法总结

basic的用法总结

basic的用法总结一、基础知识:在计算机编程领域,编程语言中的“basic”是一种高级程序设计语言。

它最初由约翰·G ·凯姆林格(John G. Kemeny)和托马斯·E. 卡茨(Thomas E. Kurtz)于1964年开发出来,并且广泛应用于教育和业余爱好者之间。

二、历史背景:BASIC这个词源自英文名称的缩写——Beginners' All-purpose Symbolic Instruction Code,既意为“初学者通用指令码”,因此它确实是一个以简单易学而闻名的初级编程语言。

当时,凯姆林格和卡茨希望能够创造一种供学生学习计算机科学和编程的简明工具。

最开始,BASIC只能运行在大型计算机上,但随着计算机硬件的发展,它也逐渐运行在了各类个人电脑上。

三、基本特点:BASIC的设计目标是为非专业程序员提供一种容易理解和上手的编程语言。

正因如此,它不像其他高级编程语言那样强调规范性。

与其说BASIC是严格执行命令的语言,倒不如说它更像是一种指导程序执行的伪码。

BASIC的语法简单直观,容易理解和记忆。

它使用人类可读的表达式和命令,而不是像其他编程语言那样使用复杂的符号。

这使得初学者能够更轻松地掌握编程基础,并且能够比较快速地写出自己的代码。

此外,BASIC还支持跳转、循环和条件判断等流程控制结构,使得程序员可以实现更复杂的逻辑判断和循环操作。

四、应用领域:由于BASIC简单易懂的特点,它在教育领域得到了广泛应用。

许多初学者通过学习BASIC打开了编程之门,并且逐渐转向其他更为强大的编程语言。

除此之外,在个人电脑早期发展阶段(例如20世纪80年代),BASIC也被广泛用于编写游戏、自动化任务和终端操作等方面。

五、基本用法总结:1. 变量和数据类型:BASIC允许声明变量并赋予不同类型的值。

常见类型包括整数(integer)、浮点数(float)、字符串(string)等。

[2]Excite Designer培训教程

[2]Excite Designer培训教程
培训教程
Training Course
概述 General
介绍 Introduction
EXCITE Designer 包括了发动机轴系初期设 计所需的工具,输入数据也较少。
covers tools required for crank train design analysis used early in the development process due to the small amount of data input required. The applications are:
EXCITE DESIGNER BTC-2003 10
模型准备 Model Preparation 活塞,销,连杆,轴承 Piston, Piston Pin, Connecting Rods, Bearings
可使用拷贝功能,包括活塞,连杆Use copy, create other pistons and connecting rods.
轴系参数Crank Train Globals:
Definition of Crank Train Main Characteristics
轴生成器Shaft Modeler:
Definition of Crank Shaft Characteristics
载荷数据Load Data:
Definition of Cylinder Pressure, Body Loads, External Loads
vibrations covers the calculation of natural frequencies as well as forced vibrations
z 强度计算Strength Calculation

中考英语形容词-副词复习

中考英语形容词-副词复习
形容词在句中作定语、表语、宾语补 足语等成分.
形容词的构成通常有:
1、+ful
forget—forgetful
help—helpful
wonder—wonderful use—useful
care—careful
beauty—beautiful
thank-thankful
colour ----colourful
farther/further farthest/furthest older/elder oldest/eldest
as+形容词原形+as
Tom is as tall as Mike.
There are as many students in our
school as yours.
否定 not as+形容词原形+as “和… 不一样”
注意:
中考英语专项复习 形容词和副词
①最高级前可以有序数词来修饰。例如:
Which is the first most useful
invention? 哪一个是第一个最有用途的发明?
②如果形容词最高级前有物主代词,指示代 词,名词所有格时,则不必加定冠词the。 例如:
Yesterday was my busiest day. 昨天是 我最忙碌的一天。
Which is easier, maths or English? 3、能修饰比较级的副词及短:much(…的多)、 a lot(…的多)、even(更…)、still(更…)、a bit/alittle(…一点儿)
This city is much more beautiful than
hat one
明确这两种词的基本意义以及在语句中的功能和 位置, 如形容词具有修饰和限定作用,一般用来 修饰名词,在语句中可用作定语和表语;

语法填空技巧(给提示词)

语法填空技巧(给提示词)
3. At first, I was afraid that my English was so poor limited (limit) that I couldn’t follow and ________ them or make myself understood.
牛刀小试3:
suggestion (suggest) 1. As far as I am concerned, my ___________ is that we should always have a notebook. encouraging 2. But a smiling face here and an ____________ (encourage) nod there soon put me at ease. excited (excite), we walked around 3. Curious and ________ the station and looked everywhere, searching for any information in English. amazement 4. To my ____________(amaze), Calaf and Turandot eventually unite in marriage.
2015-2016年“语法填空”考点分布
命题方式
考点 分布
2016 课标1 2016 课标2 2015 年卷I 2015 年卷II







连接 词
有提 示词
7 7
无提 示词
3 3
4
4+1
1
1
1 1
1 1

广东省东莞市横沥汇星小学英语六年级小升初期末复习试卷(含答案) (2)

广东省东莞市横沥汇星小学英语六年级小升初期末复习试卷(含答案) (2)

广东省东莞市横沥汇星小学英语六年级小升初期末复习试卷(含答案)一、单项选择1.Bob can see some _____ on the farm. ( )A.horse B.a horse C.horses2.Don’t _________. He is tired. ( )A.wake up him B.wake up her C.wake him up3.The twins are _____ about their plans _____ the winter holiday. ( )A.taking; to B.talking; about C.talking; for4.Mike and his classmates are talking ________ their plans ________ the weekend. ( ) A.to; about B.about; for C.with; to5.—Where did you go ________ your holiday? ( )—I ________ to Xinjiang.A.on; go B.in; went C.on; went6.Sam is ______ about Bobby’s plans. ( )A.excite B.exciting C.excited7.There _____ no computers in my home before. But now there _____ two computers. ( ) A.are; are B.were; are C.are; were8.Shall we go by bus? It is faster than ______. ( )A.walking B.walk C.walked9.The bananas ______ green. Now ______ yellow. ( )A.were; it’s B.was; they’re C.were; they’re10.—I want to fly to the Moon. ( )—Do you want to be _______?—Yes, I do.A.an artist B.a scientist C.an astronaut 11.Before, I was ___________. ( )A.become B.enjoy C.quiet12.Did they ________? ( )A.fishing B.go fishing C.went fishing13.She got up late and _________ to school. ( )A.run B.runs C.ran14.Look! The monkey _________ in the tree. ( )A.swing B.is swinging C.swings15.People ______ go by bus ______ the Tang dynasty. ( )A./; at B.didn’t; on C.didn’t; in16.There isn’t _________ coffee in the cup. ( )A.some B.much C.many17.—Does Tom learn English _____? ( )—Yes, he likes _____ English _____.A.well; reading; loudly B.good; reading; loudly C.well; to read; loud18.I like to ______ basketball. But I ______ football yesterday. ( )A.play; played B.play; play C.played; play19.—_______ did you _______ yesterday? ( )—I went to the bookstore.A.What; go B.Where; went C.Where; go20.It was rainy. I _______ at home with my mother. ( )A.stay B.stayed C.stays二、用单词的适当形式填空21.Look! The first panda is ______(thin) than the second one.22.Those scarves in the window ________ (be) nice.23.All the people are ________ (excite) about the shows in the zoo.24.Mike is good at __________ (play) table tennis.25.Listen! Who ________ (read) English?26.Don’t eat too _____ (much) sweets.27.__________ your parents __________ (read) newspapers every day?28.All my friends like _______ (play) the piano. They want to be _______ (piano).29._______ (eat) a lot of food before bedtime is not good for our _______ (healthy). 30.Helen's mother is a doctor. She usually _______ (help) sick people.三、完成句子31.I r_________ a bike with my friends today. It is fun.32.Stay s________ and follow the rules on the roads.33.My little brother often laughs h________.34.People in the UK _______ (欢迎) visitors.35.______ ______ (认真听) in class.36.—What’s the matter with you?—I have a _________ (牙疼).37.I like dancing. I want to be a d_____.38.I will ________ (照相) in the nature park this Sunday.39.Did Lucy w_______ TV last Sunday?40.Tom s_____ in the lake yesterday.四、完形填空41.完形填空。

EXCITE TD 基础培训教程--齿轮传动

EXCITE TD 基础培训教程--齿轮传动

SHGE(shaft+ gear):(6 DOF’s => radial and axial motions, recommended !)
一般不用Gear-Element 无轴段齿轮,因其只能考虑转动1个自由 度, 内设刚性支承(无轴承变形),因而会过高估计齿力 滚动轴承兼含径向和推力作用,需由 共同定义
GB1357-87标准模数常用系列 第一系 6.1 列模数 1 单位 (mm) 10
0.12 0.15 1.25 12 1.5 16 0.2 2 20 0.25 2.5 25 0.3 3 32 0.4 4 40 0.5 5 50 0.6 6 0.8 8
常见汽车变速器的法向模数(mm)
车型 微型、普通 级轿车 模数 2.25-2.75 中级轿车 2.75-3.00 中型货车 3.50-4.50 重型车 4.50-6.00
旋转方向 压力线
Pressure Line
Байду номын сангаас
背隙 驱动侧隙
„Driving Flank“ „Backlash“
压力角
„Pitch Point“
节点(节圆相交点) 主动轮 节圆
6
齿轮啮合理论
啮合刚度
必须描述一对齿轮所有啮合齿的总刚度must represent entire stiffness of all
齿轮轴的弹性支承(如:机体前端、缸头相应位置刚度),定义在相应 的径向轴承 和推力轴承 中 轴段弹性特征: 若本单元前面没有轴段SHAF单元,则不需定义(与截面 有关的数据,如面积,截面模量等) 定义旋转激励 :曲轴/齿轮轴转速波动(可选)及均匀主转速(必选)
最末端的齿轮应给定动载时间序列数据
5
齿轮啮合理论
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n
5 ≤ d 0 ≤ 50 [Ns/mm] 1 ≤ d B ≤ 10 [Ns/mm] x B = nom. radial clearance
.10.
在零位移处at zero displacement:
n
参考位移 Reference displacement:半径间隙
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.13.
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NONL 非线性弹簧/阻尼径向轴承 Non-linear Bearing
注意连接先后 节点组 枚举,手工添入 连接节点,按顺序
主轴颈有5个主自由度点
节点组 枚举,手工添入 连接节点, 按顺序 节点数等分后分别与上体 节点耦合
.4.
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连接单元 Joint
非线性弹簧/阻尼连接体 Non-linear Spring/Damping Joint
类型 Definition
n
常用于 Used For
1.径向轴承,如连杆大小头 轴承、主轴承等 Main
REVO 旋转轴承
Revolute Bearing Joint
Revolute bearing via nonlinear spring/damper function n Used for main bearing, big end bearing, small end bearing, etc. n Connection of only one bearing node possible Function for Constraint Force:
连杆大头轴承
Big end bearing
Conrod BigEnd
REVO radial slider bearing REVO radial slider bearing
Pin
连杆大头轴承 Big end bearing
.6.
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c f = c0 B c0
c0 d0 cB dB xB
∆ x ij xB
∆ x ij e ∆ x
d + d0 B d0
∆ x ij xB
& ij e ∆ x& ∆x
Stiffness coeff. at displacement ∆x=0 Damping coeff. at displacement ∆x=0 Stiffness coeff. at displacement ∆x=xB Damping coeff. at displacement ∆x=xB Reference displacement
n
刚度 Stiffness parameters
E
n
n
Fmax,bearing c = 在参考位移处 at reference displacement (xB): B *A radial clearance ⋅ # active springs (半径间隙 radial clearance)
.11.
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NONL 非线性弹簧/阻尼径向轴承 Non-linear Bearing
(I) 用于径向轴承 Bearing

连杆动力学和高级轴承分析中常用 usually used in conrod dynamics and advanced bearing analysis
连接单元 Joint
定义连接体 Definition of a Joint
n通用类型耦合General Purposes (all types) n径向轴承 中心点-中心点 Center to Center (REVO or HDBU) 中心点-面点 Center to Surface(NONL,EHD,EHD2,TEHD) 面点-面点 Surface to Surface (EHD2 or TEHD) n轴向推力轴承 Axial thrust bearing (AXBE) n活塞/缸套 导向 Node to Line Coupling (GUID) 弹性液动 Surface to Surface Coupling (EPIL) n发动机悬置 Engine Mount (NONL,SLS) n减振器 Rotational Coupling (FINT) n自定义力表 n传动 旋转轴联轴器耦合 Rotational Coupling (ROTX) 齿轮 差速器 行星齿轮 万向节 皮带连接
.14.
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NONL 非线性弹簧/阻尼径向轴承 Non-linear Bearing
(I) 用于径向轴承 Bearing 液体径向滑动轴承的参数定义
Determination of Parameters for Hydrodynamic Radial Slider Bearings
.12.
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NONL 非线性弹簧/阻尼径向轴承 Non-linear Bearing
非线性刚度和阻尼
对中时 注意单位
垂直
轴向
的一半 或1:3:5:3:1 分布方式, 节点连接后 方可设定
Nonlinear spring stiffness increase greatly with the eccentricity of the pin
比照油膜及轴承阻尼特性,定义: 非线性阻尼随轴颈偏心的增加而增大。
Nonlinear damping increase with the eccentricity of the pin
轴瓦几何
定义局部坐标系(轴承孔) 轴承中心为原点时,POINT设为0,0,0
定常轴承力,由于外界或不对中产生的静载,常无 FEM间无外载时节点轴向距离,建议节点对齐 轴承孔方向 压
常:取消轴向力
D
压/拉/压拉
移至圆柱面。若有限元模型节点未精确落在圆柱 面上(微米量),影响轴承间隙,将导致模型误差 圆柱面半径
NONL 非线性弹簧/阻尼径向轴承 Non-linear Bearing
(I) 用于径向轴承 Bearing
n 连接一中心点与表面多点connects
one center node of one body with several surface nodes of another body
n 考虑节点初始距离Gaps can be
.3.
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连接单元 Joint
定义特性
定义非线性刚度和阻尼特性
Property Definition
---以NONL为例
连接节点 节点组
体单元1
手工添入
定义坐标系
连接节点,按顺序
体单元2 节点组 手工添入 连接节点,按顺序
⋅A
BigEnd Bearing:
Fmax,bearing ≈ Fmax, gas
n n
πD Pmax = 4
2
Main Bearing:
Fmax,bearing ≈
在零位移处at zero displacement:
c0 = cB ⋅ 10−2
阻尼 Damping parameters n 在参考位移处at reference displacement (xB):
刚度 Stiffness parameters n 在参考位移处at reference displacement (xB):
(半径间隙 radial clearance,adaptation A=1.5~3)
cB =
Fmax,bearing radial clearance Fmax, gas 2 ⋅ 1,3
.7.
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REVO 旋转轴承
Revolute Bearing Joint
注意:该体名称与 连接先后有关
对中时
注意单位
偏心时
E半径
间隙 =直径间隙的一半
.8.
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n 作用力,可分为:传递力、传递力矩、传递力和力矩 n 运动,可分为:平移、旋转、平移和旋转 n 非线性特性,可分为:弹簧/阻尼、润滑油等类型 n 连接方式,可分为:轴承、联轴器、活塞缸套导向、悬置等类型 n 连接主自由度节点的多少,可分为:单点-单点、单点-多点、多 点-多点
2
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轴承间隙Bearing Clearance (Gap) 轴颈不对中Journal Misalignment (Moment) 传递力和力矩,可规定只传递径向力
.5.
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REVO 旋转轴承
Revolute Bearing Joint
considered
n 可设定为压、拉、或拉压Can be
active only in compression or compression and tension direction

曲轴动力学和高级轴承分析中常用 usually used in cranktrain dynamics and advanced bearing analysis
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