試驗強度 的英文怎麼說
中文拼音 [shìyànqiángdù]
試驗強度
英文
strength of testing-
A test analysis of open canal bottom coefficient of roughness anticlimax on turbulent velocity of flow and intensity of turbulence influence
明渠渠底糙率突減對紊流流速及紊動強度影響的試驗分析The study is imitating subulate tool penterite armor fabric by method of test for puncture of paperboard and corrugated fiberboard, and to ascertain the laver of armor fabric for absorb energy and arrestment, and any difference angle to compare the rank of defying ball, for understanding the sharp to the rank of annor fabric defy penterite energy, and penterite deep, the lose energy relation of sharp
摘要本研究是以沖孔強度試驗機測試,模擬尖錐利器攻擊穿刺防彈衣,且對于防彈衣層數間的阻抗作用及能量吸收的情形,並對各種不同角度的抗彈織物疊層排列作相互比較,進而?解尖錐對防彈衣的抗穿透層數之能量及穿透深度、錐度之能量耗損之間關系。The research results show that when the fly ash content is under 30 %, the strength of rcc can be increased but the effect is a little ; and with the fly ash content increased the dry shrinkage of the rcc reduced straightly, and the abrasion resistance and freeze resistance increased obviously. ( 3 ) fly ash can increase durability of the rcc and under the experiment condition, the perfect mixing content is 30 %
試驗結果表明: ( 1 )粉煤灰摻量小於30 %時能提高碾壓混凝土強度但影響度不大; ( 2 )隨著粉煤灰摻量的增加,碾壓混凝土的干縮呈直線降低,且抗磨性和抗凍融能力明顯提高; ( 3 )粉煤灰能有效提高碾壓混凝土的耐久性,且在試驗條件下的最佳摻量為30 % 。In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test
然後,對巖土工程領域至今尚未解決,甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討,提出了考慮地基變形的地基承載力上程計算方法;對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎(空間問題)的承載力界限荷載p _ ( 1 / 4 ) ,並與國內外土力學專著及地基基礎設計規范中的條形基礎(平面問題)的界限荷載p _ ( 1 / 4 ) ,進行了對比,從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況;根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作,本文以截頭錐模型模擬地基,對地基(巖基)承載力的動測法進行了研究,為各類地基(包括巖基) ,匯總了動力分析和檢測川的參數:針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題,從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論;本文作者根據多年現場載荷試驗的工程實踐,對深井荷試驗裝置的核心部分? ?反力裝置,設計了側壁支撐反力加載系統,該加載系統具有實用、簡便、穩定及安個等優點。Multispectral data for bathymetry is often performed in relatively clear shallow waters, up to now, no one use multispectral data for bathymetry in estuary waters of yellow river, where the highest sediment concentration in the world has been observed. in another part of this thesis, multispectral data acquired by landsat - 5 tm and in situ data are used for bathymetry in estuarine waters of yellow river. statistical models based on one band and two bands of tm respectively are developed
利用兩期水深的比對可以揭示黃河水下三角洲的沖淤演變規律,但由於實測水深資料獲取較為困難,因而利用遙感來反演水深是一個重要的選擇,為此,本文在黃河口海現代黃河三角洲沖淤演變規律與遙感應用研究端走取兩個試驗區進行了多光譜遙感水深反演試驗,試驗結果表明,在極高泥沙濃度、較強水動力條件的黃河口海域,用多光譜遙感反演水深是可行的。The accidents of bird impact have caused huge loss to human being. it is important to establish the predicting system to definite the response of the blade for the improvement the strength of the blade on the design of the resistance of the blade under the bird strike
減少此類事故發生的措施之一是:針對易受鳥撞擊的發動機等主要部件,從理論與實踐方面研究鳥撞擊的機理,對其進行結構、強度及性能的計算與試驗分析,指導工程設計,提高這些部件自身的抗鳥撞擊能力。Methods of the strength tests for brazed and soldered joint
釬焊接頭強度試驗方法The lightning impulse breakdown and steep - front impulse breakdown test of silicone rubber are also performed, which give a reference for other so lid materials. the result of this research also will give a reference to revises the standard of steep - front wave impulse voltage test
為了配合本課題的研究還做了硅橡膠材料的雷電沖擊耐受強度和陡波沖擊耐受強度試驗,這兩個試驗對了解其它固體材料的雷電沖擊系數和伏秒特性也具有參考價值。The main content is : splitting tensile experiments were carried out about the standardized cube bonding specimens ( 150x 150x 150mm3 ) of the new - old concrete after high temperature. the temperature is divided into 9 groups from normal atmospheric temperature to 900, the cooling styles are natural cooling and spraying water cooling ; different interfacial treating methods : brushed with steel - wire brush, man - made chiseling ( not evenly ), man - made chiseling ( quite evenly ) ; different interfacial agents : no interfacial agent, neat cement paste, cement paste mixed with 10 % expanding agent
主要內容有:本文對75個高溫作用后的標準立方體新老混凝土粘結試件進行了劈拉試驗,溫度從常溫到900c分9個溫度段,降溫方式分自然冷卻和噴水冷卻兩種。著重考察了溫度、降溫方式、界面粗糙度及界面劑對新老混凝土粘結劈拉強度的影響規律,闡述了高溫后粘結強度下降的機理。In the aspect of improving the cracking feature, compatibility and flexibility, the author has done experiments, including strength, modulus of elasticity experiments, and design some experiments similar to the practical structure and circumstance including adhesion strength between fresh mortars and old ones, between mortar and polystyrene board, mortar shrinkage in concrete circle, mortar shrinkage at different strength and different polymer - cement ratio, and temperature deformability at different strength and different polymer - cement ratio on mortars, on different type of formwork and on mortars with different type of formwork
在改善砂漿抗裂性、提高柔韌性和協調變形能力方面,進行了不同聚合物摻量的強度試驗、彈性模量試驗;設計了與模網混凝土實際結構和情況相接近的新老砂漿粘結強度試驗、砂漿與苯板的粘結試驗以及混凝土環中的砂漿收縮試驗;進行了不同強度、不同聚合物摻量下的砂漿干縮變形試驗、溫度變形試驗,以及不同結構形式的鋼網自身溫度變形試驗和配有鋼網的砂漿溫度變形試驗。The research of high performance pavement concrete ( hppc ) is done in two sides. one is mixture design, the other is pavement performance. the mixture design and design flowchart of hppc is given on the base of nc with the consideration of characteristic of both hppc and nc. the grow law, influencing factor and formation mechanism of hppc strength is analisised by perpendicular experiment. in the same, the fatigue equations are set up for hppc and hppc i on the base of fatigue experiment. the fatigue mechanism of hppc is analysised by damage mechanics and fracture mechanics. brittleness, frost resistance and abrasion resistance of hppc is researched with the camparition to nc i. at last, the economic analysis of hppc is done by two kinds of way
結合高性能混凝土與普通路面混凝土的特點,提出了建立在普通路面混凝土基礎上的高性能路面混凝土配合比設計方法,給出了設計流程;通過正交試驗(強度試驗) ,分析了高性能路面混凝土的強度發展規律、影響因素與形成機理;同時,根據疲勞試驗結果採用雙參數weibull分佈模型分別建立了高性能路面混凝土和高性能路面混凝土(沒有摻加硅粉)疲勞方程,應用損傷力學和斷裂力學,分析了高性能路面混凝土的疲勞機理;並採用了對比分析方法,研究了高性能路面混凝土的脆性、抗凍性和耐磨性等。The main deficiency of crankshaft fatigue test machine now used in our country are inadequate test loading precision, low automatic and intellective degree and blank of mathematical statistics by computer. in order to fix them up, a new style crankshaft fatigue test system is developed
針對目前國內曲軸彎曲疲勞試驗機試驗精度不夠、試驗的自動化和智能化程度較低以及在試驗數據計算機統計空白等不足,開發了一種具有較強實用性的新型曲軸彎曲疲勞試驗系統。In order to solve it radically, making power assembly of bj1036e2f1 light truck the research object and through dynamic simulation analysis of power assembly, this thesis obtains the distribution rules of forces of the bolts linking three shells mentioned above and the relation between forces of the bolts and rotate speed of engine. after finite element mode analysis of these three shells, inherent frequency and vibration model of shell of power assembly are gained, and thus its dynamic character is realized. based on computer simulation analysis, experimental model of power assembly is acquired by vibration test and strength test of shell of power assembly, and the relation of forces of the shell and rotate speed of engine and imbalanced mass of rotate components is studied
為了從根本上解決該問題,本論文以bj1036e2f1輕卡動力總成為研究對象,通過動力總成的動力學模擬分析,找出了三殼之間聯接螺栓受力的分佈規律和螺栓受力與發動機轉速的關系;通過三殼的有限元模態分析,得到了動力總成殼體的固有頻率與振型,從而了解了動力總成殼體的動態特性;在計算機模擬分析的基礎上,通過動力總成殼體的振動測試和強度測試,得出了動力總成的試驗模態,並研究了殼體受力與發動機轉速和旋轉部件不平衡質量的關系。Reecat company adapts dc - power test system, go on speed performance test, load test, heat circulation test, durability test. use in motorcycle matching test, catalyst performance aging test
利凱特使用的是直流電力測功機系統,可進行速度特性試驗負荷特性試驗熱磨合循環試驗強化耐久試驗,主要用於摩托車匹配試驗和催化劑性能及老化試驗。Reecat company adapts dc - power test system, go on speed performance test, load test, heat circulation test, durability test. use in motorcycle matching test, catalyst performance & aging test
利凱特使用的是直流電力測功機系統,可進行速度特性試驗、負荷特性試驗、熱磨合循環試驗、強化耐久試驗,主要用於摩托車匹配試驗和催化劑性能及老化試驗。Test severity level
試驗強度級2 light weight, toughness, impact resistance, high voltage test strength over 5mpa
2重量輕韌性好耐沖擊耐壓試驗強度高達5mpa以上The main achievement of this text is a method to analyse through the theory, combine the material science of concrete, relevant knowledge of the composite, through method of mechanical analysis. set up one practical concrete pore structure compound body model comparatively. and through an analysis of test data in documents, examining the science and practicability of the model. according to calculation strength that model receive being with test strength fit very well, the coefficient correlation is very high
本文的主要成果是通過理論分析的方法,結合混凝土材料科學、復合材料的相關知識,通過力學分析的方法,建立了一個較為實用的混凝土孔結構復合體模型。並通過對文獻中試驗數據的分析與回歸,檢驗了模型的科學性和實用性。根據模型得到的計算強度與試驗強度擬合的非常好,相關系數非常高。The results show that, with the quenching temperature ( 270 ~ 380 ) increasing, the carbon content and percentage content of retained austenite increase first and then decrease, which are up to a maximum value at 360 ; the tensile strength of adi decreases ; the elongation and impact ductility of adi increase first and then decrease, which are up to a maximum value at 360 ; but the hardness of adi decreases first and then increases, which is up to a minimum value at 360
結果表明,在試驗溫度范圍內( 270 ~ 380 ) ,試樣中殘余奧氏體的含碳量及其含量隨著等溫淬火溫度的升高先增大后減小,均在360等溫淬火時出現最大值;抗拉強度隨著等溫淬火溫度的升高而逐漸降低;伸長率和沖擊韌度隨著等溫淬火溫度的升高先增大后減小,在360等溫淬火時出現最大值;硬度則隨著等溫淬火溫度的升高先減小后增大,當360溫淬火時硬度最低。On the base of the iec standard of dc suspension insulators, we designed a new ion migration test for 500kv dc ceramic support insulators, including the regulation between the bulk resistance and the temperature, the test samples, the test voltage and the temperature for long - term ion migration test, and the amount of accumulative charges
以懸式絕緣子離子遷移試驗標準為基礎,完整的設計了500kv直流支柱式瓷絕緣子離子遷移試驗,其中包括研究了試品體積電阻隨溫度場強變化的規律,成功的設計了試驗試品,確定了長期離子遷移試驗電壓( 40kv )和試驗溫度( 130 ) ,計算了50年累計電荷量( 0 . 173c ) 。分享友人