train vt. 1.訓(xùn)練;培養(yǎng),養(yǎng)成;鍛煉(身體);【園藝】使向一定方向生長(zhǎng),整形,整枝 (up; over)。 2.瞄準(zhǔn),對(duì)準(zhǔn)(炮等) (on; upon)。 3.〔罕用語(yǔ)〕拖,曳。 4.〔古語(yǔ)〕引誘,吸引 (away; from)。 vi. 1.接受訓(xùn)練;練習(xí);鍛煉身體 (for)。 2.〔口語(yǔ)〕坐火車旅行;〔美俚〕交際,來往;〔美俚〕跳來跳去。 At school we should train young children (how) to be good citizens. 我們?cè)诔醯葘W(xué)校應(yīng)當(dāng)訓(xùn)練青少年(如何)當(dāng)好優(yōu)秀公民。 half-trained 訓(xùn)練[鍛煉 ]不夠的。 over-trained 訓(xùn)練[鍛煉]過度的。 under-trained 訓(xùn)練[鍛煉]差的。 train fine 嚴(yán)格訓(xùn)練[鍛煉]。 He was trained to be a doctor but later on he decided to become an actor instead. 他接受的是醫(yī)生的訓(xùn)練,可是后來卻決定做演員了。 Every morning he spends two hours training for race. 他每天早晨花兩個(gè)小時(shí)鍛煉賽跑。 train down (選手)練輕體重。 〔口語(yǔ)〕 train it 坐火車去。 train off 用鍛煉減輕[減肥];(子彈)打歪,沒打中。 train on 練好。 train with 〔美國(guó)〕交往;合作[聯(lián)合]。 n. 1.列車,火車。 2.隊(duì)伍;一行,排,列;系列;〔集合詞〕隨從,隨員。 3.鏈,(思想等的)連續(xù);一連串(事件);接著發(fā)生的事件,后事,結(jié)果。 4.次序;狀態(tài)。 5.拖在后頭的東西;衣裙;【軍事】輜重隊(duì);后勤部隊(duì);(炮架的)架尾;彗星的尾;鳥尾;導(dǎo)火線;(重而長(zhǎng)的)大雪橇。 6.【機(jī)械工程】(傳動(dòng)的)輪列,輪系;齒輪組。 a down [an up] train 下行[上行]列車。 a funeral train 送喪的隊(duì)伍。 a long train of sightseers 一大批游客。 an accommodation [express] train 普通[特快]列車。 a through train 直達(dá)列車。 All is now in (good) train. 完全停當(dāng)了,全好了。 Everything fell into its old train again. 一切又恢復(fù)原狀了。 train of mechanism 【機(jī)械工程】機(jī)構(gòu)系。 train of powder 【軍事】導(dǎo)火線。 by train 坐火車。 catch [make] one's train 正趕上火車。 in (good) train 準(zhǔn)備妥當(dāng)。 in the train of 接著,繼…之后。 miss one's train 沒趕上火車。 put on a special train 掛臨時(shí)加車。 put things in train 安排妥貼。 ride the gravy train 獲得賺錢好機(jī)會(huì);干不費(fèi)勁的活兒。 take train to ... 坐火車去…。 train de luxe 花車。
Comparison of valve train dynamic models 配氣機(jī)構(gòu)動(dòng)力學(xué)模型的比較研究
The results show that moderate lateral link stiffness between cars will do no harm to train dynamic curving behavior 適當(dāng)?shù)臋M向連接剛度對(duì)列車的曲線通過性能是無害的。
The goal of the thesis is to form an integrated theory for high-speed train dynamics . the work of the study can instruct the design of the high-speed train in china 本文的目的是通過研究,形成完整的高速列車動(dòng)力學(xué)分析理論體系,為我國(guó)高速列車的開發(fā)研制提供理論基礎(chǔ)。
This paper uses the program to calculate the dynamics performance of small slack coupler that designed by qiqiha'er vehicle ( grounp ) company . by compared maximum coupler force and maximum acceleration of car body with common slack coupler at condition of train starting, braking, emergency braking and releasing, we verified that small slack coupler is better than common slack coupler in dynamics performance . this paper also calculated the train dynamics performance parameter with different buffer and braking system, running in different line and using different operating method 本文利用列車縱向動(dòng)力學(xué)模擬程序,計(jì)算了齊齊哈爾車輛(集團(tuán))公司研制的13號(hào)小間隙防脫車鉤的縱向動(dòng)力學(xué)性能,通過比較各個(gè)車鉤間隙下列車最大縱向車鉤力和列車最大加速度的數(shù)值,得出小間隙車鉤在列車啟動(dòng)工況、常用制動(dòng)工況、緊急制動(dòng)工況、緩解工況的縱向動(dòng)力學(xué)性能都較原有車鉤性能優(yōu)異的結(jié)論。
According to different research objectives, four kinds of vehicle dynamic models ( named from model a to model d ) and two types of train dynamic models ( model e and model f ) are established in this thesis . during the modeling process of the vehicle and train systems, nonlinearities arising from wheel / rail contact geometry, wheel / rail interactive forces and suspension characteristics are fully considered . the modeling methods about vestibule diaphragm, coupler and draft gear are introduced, too 本文按照研究目的的不同,建立了4種車輛動(dòng)力學(xué)模型(模型a模型d)和2種列車動(dòng)力學(xué)模型(模型e和模型f),建模過程中盡可能多地考慮了列車(車輛)系統(tǒng)中的各種非線性因素,詳細(xì)給出了風(fēng)擋裝置、車鉤及緩沖器的具體建模方法。
Among the six models, model a and model b can be used to study the vehicle stability and curve negotiation under different track situations . model c and model d can be used to carry out the stability, dynamic curving behavior and ride comfort of the high-speed passenger car . model e and model f are three-dimension train dynamic models which consist of three cars ( head car, intermediate car and tail car ) 所建立的6種動(dòng)力學(xué)模型中,模型a和模型b可用于研究不同軌道條件下車輛的運(yùn)動(dòng)穩(wěn)定性及動(dòng)態(tài)曲線通過性能;模型c和模型d可以用來研究車輛的運(yùn)動(dòng)穩(wěn)定性、動(dòng)態(tài)曲線通過性能及運(yùn)行平穩(wěn)性;模型e和模型f是列車系統(tǒng)動(dòng)力學(xué)分析模型,都是由三節(jié)車組成的列車單元,三車列車模型作為一個(gè)最小的列車單元,包含了頭車、中間車和尾車,已能夠反映整個(gè)列車的動(dòng)力學(xué)特性。
The assessment system software for driver's operation is designed and produced based on experts, knowledge about train traction calculations, operation experiences of excellent drivers, longitudinal profiles of running lines, train compositions as well as performance data of locomotives and rolling stocks, by use of object-oriented programming technology, in combination with data processing of train running monitoring device, train traction calculation, train dynamics analysis and optimized operation 摘要以列車牽引計(jì)算專家知識(shí)、優(yōu)秀司機(jī)的操縱經(jīng)驗(yàn)、行車線路縱斷面、列車編組及機(jī)車、車輛的特性數(shù)據(jù)等為基礎(chǔ),將機(jī)車運(yùn)行監(jiān)控裝置的數(shù)據(jù)處理、列車牽引計(jì)算、列車動(dòng)力學(xué)分析及優(yōu)化操縱等相關(guān)內(nèi)容有機(jī)地結(jié)合起來,利用面向?qū)ο蟮木幊碳夹g(shù)實(shí)現(xiàn)了機(jī)車司機(jī)操縱評(píng)價(jià)軟件的設(shè)計(jì)和制作。
In this paper, the dynamics problem of train with magneto-rheological coupled wheelsets are also researched and put forward a new method of computing train dynamics-cycle variable method . in succession, a train dynamics model based on cycle variable method is established and the relevant computer simulation software on train dynamics is drawn up 本文還從列車動(dòng)力學(xué)的角度對(duì)磁流變耦合輪對(duì)的動(dòng)力學(xué)性能進(jìn)行了研究,提出了一種計(jì)算列車動(dòng)力學(xué)的新方法??循環(huán)變量法,建立了基于循環(huán)變量法的列車動(dòng)力學(xué)模型,編制了列車動(dòng)力學(xué)計(jì)算軟件。
In this paper, the dynamics problem of train with magneto-rheological coupled wheelsets are also researched and put forward a new method of computing train dynamics-cycle variable method . in succession, a train dynamics model based on cycle variable method is established and the relevant computer simulation software on train dynamics is drawn up 本文還從列車動(dòng)力學(xué)的角度對(duì)磁流變耦合輪對(duì)的動(dòng)力學(xué)性能進(jìn)行了研究,提出了一種計(jì)算列車動(dòng)力學(xué)的新方法??循環(huán)變量法,建立了基于循環(huán)變量法的列車動(dòng)力學(xué)模型,編制了列車動(dòng)力學(xué)計(jì)算軟件。
In this paper, the dynamics problem of train with magneto-rheological coupled wheelsets are also researched and put forward a new method of computing train dynamics-cycle variable method . in succession, a train dynamics model based on cycle variable method is established and the relevant computer simulation software on train dynamics is drawn up 本文還從列車動(dòng)力學(xué)的角度對(duì)磁流變耦合輪對(duì)的動(dòng)力學(xué)性能進(jìn)行了研究,提出了一種計(jì)算列車動(dòng)力學(xué)的新方法??循環(huán)變量法,建立了基于循環(huán)變量法的列車動(dòng)力學(xué)模型,編制了列車動(dòng)力學(xué)計(jì)算軟件。