acceleration history中文是什么意思

發(fā)音:

中文翻譯
造句

加速度隨時(shí)間的變化

acceleration n. 1.加速；促進(jìn)。 2.【物理學(xué)】加速度；變速。 3 ...
history n. 1.歷史，歷史學(xué)。 2.沿革，來(lái)歷；(個(gè)人的)履歷 ...
normal acceleration time history 法向加速度隨時(shí)間的變化
time history of acceleration variable 加速度隨時(shí)間的變化
acceleration n. 1.加速；促進(jìn)。 2.【物理學(xué)】加速度；變速。 3.【教育】加速升級(jí)。 uniform [variable] acceleration 等〔不等〕加速度。 lightning acceleration 【汽車】瞬間加速度。 brief acceleration 瞬時(shí)有效加速度。 acceleration of gravity 重力加速度。
of acceleration 加速
be history 成為過(guò)去
history n. 1.歷史，歷史學(xué)。 2.沿革，來(lái)歷；(個(gè)人的)履歷，經(jīng)歷。 3.對(duì)過(guò)去事件的記載；大事記。 4.對(duì)形成未來(lái)的進(jìn)程有影響的事件[思想]。 5.過(guò)去的事。 6.歷史劇。 a case history 病例，典型例證。 Ancient [Medieval, Modern] H- 古代[中古、近代]史。 natural history 博物學(xué)，自然史。 This sword has a history. 這劍有來(lái)歷。 She has a history. 她的身世有難言之隱。 temperature history 溫度變化過(guò)程。 time history 時(shí)間關(guān)系曲線圖。 be history 成為歷史；完蛋。 H- repeats itself. 〔諺語(yǔ)〕歷史往往重演。 make history 影響歷史進(jìn)程，做名垂青史的大事。
history of 黨史
in history 歷史掌故; 在歷史上; 在歷史中
shock acceleration acceleration 沖擊加速度
alternate history, alternative history 另類歷史小說(shuō)
comprehensive history; general history 通史
history (including history of art) 歷史（包括藝術(shù)史）
history and art history 歷史與美術(shù)史
history, medical history 病史
landscape history garden history 園林史
outline history; brief history 史略
a olute acceleration 絕對(duì)加速度
abrupt acceleration 沖擊性加速度; 突然加速度
absolute acceleration 絕對(duì)加速度; 絕對(duì)溫度
academic acceleration (優(yōu)秀學(xué)生)學(xué)習(xí)跳級(jí)(越級(jí)), 提前結(jié)業(yè); 優(yōu)秀學(xué)生學(xué)習(xí)跳級(jí)
acc acceleration 加速度
acceleration ectrum 加速度譜
acceleration action 加速度影響; 加速度作用

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例句與用法

With the input of a vibration acceleration history of subway train , a full dynamic analysis of soil - pile - structure is carried out . the propagation of vibration wave on the ground and vibration responses of the huge platform and the storied buildings are analyzed . some conclusions are drawn as follows : ( 1 ) with the increase of the distance to the vibration source , vibration intensity of the ground decreases ; ( 2 ) the vibration intensity of the ground in vertical direction is slightly larger than that in horizontal direction ; ( 3 ) with the increase of the distance to the vibration source , the situation that the vibration intensity of each building in horizontal direction is maximum at highest and lowest story whereas minimum at the middle story changes gradually to that decreasing with the height of building ; ( 4 ) in vertical direction , the vibration velocities and accelerations at the end points of each story of a building are the nominal identical , which indicates that the vertical vibration of them is unanimous ; ( 5 ) the vibration intensity in vertical direction of a building is larger than that in horizontal direction ; ( 6 ) increasing of the elasticity of track is an effective way to abate vibration of ground and buildings
本文以北京地鐵八王墳車輛段地上超大結(jié)構(gòu)(車輛段大平臺(tái)及其上的小區(qū)樓房)及其地基基礎(chǔ)為研究對(duì)象，在研究和分析有關(guān)資料的基礎(chǔ)上，用快速拉格朗日有限差分法軟件flac建立了二維數(shù)值分析模型，并以列車振動(dòng)加速度時(shí)程作為模型輸入，進(jìn)行了地基?樁基礎(chǔ)?地上結(jié)構(gòu)的整體動(dòng)力學(xué)分析，分析了地鐵列車運(yùn)行產(chǎn)生的振動(dòng)在地面的傳播規(guī)律及其對(duì)地上結(jié)構(gòu)的影響，得到了如下結(jié)論： ( 1 )隨著與地鐵線路距離的增大，地面的振動(dòng)強(qiáng)度有減小的趨勢(shì)； ( 2 )地面豎直方向的振動(dòng)強(qiáng)度較之水平方向的略大； ( 3 )隨著與振源距離的增大，在水平方向上，地上各幢樓房的振動(dòng)強(qiáng)度由底層和頂層的最大、中間層的最小逐漸過(guò)渡到沿樓層增高而減小； ( 4 )在豎直方向上，每幢樓各層端點(diǎn)的振動(dòng)速度、加速度完全相同，表明樓房各層在豎直方向上的運(yùn)動(dòng)狀態(tài)一致； ( 5 )各幢樓房豎直方向的振動(dòng)強(qiáng)度比水平方向的大； ( 6 )增加軌道彈性是減輕地面和地上建筑振動(dòng)的有效途徑。
Based on the assessment of seismic risk of surrounding rocks , three sections are selected to perform fem calculating using ground acceleration history of different engineering properties as input . through study of the displacement and stress fields of grotto surrounding rocks under ground motion of different pga , frequency spectrum and duration , the influence of structure of grottoes and neighboring grottoes on dynamic damage and stability of country rock is discussed
通過(guò)對(duì)不同地震動(dòng)峰值加速度( pga ) 、不同頻譜、不同持時(shí)作用下,錨索加固洞窟圍巖的位移場(chǎng)和應(yīng)力場(chǎng)特征的研究,探討了不同地震動(dòng)作用下,洞窟的結(jié)構(gòu)及洞窟之間的組合關(guān)系對(duì)圍巖動(dòng)態(tài)損傷及穩(wěn)定性的影響。
Based on hundreds of actual site profiles collected in china , 1281 typical profiles were selected or constructed , which were used for studying three kinds of soil layer profiles containing soft layers that locate at the bottom , in the mid or on the top of them . 480 acceleration histories were formed artificially , which can express the different characters of ground motions and be used as the ground motion inputs in the study
在整理分析全國(guó)各地諸多實(shí)際工程場(chǎng)地鉆孔資料的基礎(chǔ)上，從中選取和構(gòu)造了1281個(gè)研究三種不同土層結(jié)構(gòu)的場(chǎng)地計(jì)算模型；合成了480條能夠反應(yīng)不同地震動(dòng)特征的加速度時(shí)程曲線，并將其作為土層地震反應(yīng)分析的地震動(dòng)輸入。

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