因子載荷 的英文怎麼說

中文拼音 [yīnzizǎi]
因子載荷 英文
factor loading
  • : Ⅰ動詞[書面語] (沿襲) follow; carry on Ⅱ介詞1 [書面語] (憑借; 根據) on the basis of; in accord...
  • : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
  • : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • : 荷名詞(蓮) lotus
  • 載荷 : load; loading載荷變化 load fluctuation; variation in load; 載荷裝置 load device
  1. First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in ug software. the elastic contact problem is analyzed in finite element method ( fem ) and is used to the parameters " distribution and contact stress of the joint are obtained on the base of ansys code. with the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high / low cycle complex load is proposed

    本文介紹了微動損傷的機理和微動疲勞壽命的研究方法;利用ug軟體對燕尾榫聯接結構創建了參數化實體模型;基於ansys軟體平臺求解彈性接觸問題,獲得了榫聯接結構接觸應力及接觸狀態量的分佈;在已有微動疲勞壽命預測模型的基礎上,引入頻率影響,對低周、高低周復合作用下的燕尾榫聯接結構進行了微動疲勞壽命的預測,與試驗結果對比表明採用本文提出的方法預測榫聯接結構的微動疲勞壽命是有效的。
  2. Establishing an human spine dynamic model is an significan event to study spine injured biomechanics of pilot " s ejective injury, parachute opening, landing and study the endurance to impact loading on human spine. in this paper, the huston " s method of kane " s equations is developed so that it can be applied to the multibodysystem including translation between the bodyies. the dynamic model of human spine is provided basing on these theories, while the big movement of spine is considered. the deformation of vetebra is far smaller comparing with the intervetebra disc, so the spine is considered into multibodysystem including rigid bodies ( vetebra ) and the flexible bodies ( intervetebra disc ). the computer solution correspond with the results of the large scale human impact test. the rigid coefficient factors and the damping factor of intervetebra joints are obtained

    人體脊柱動力學模型的建立對研究飛行員彈射救生、傘兵跳傘開傘、著陸等脊柱損傷的生物力學以及研究人體脊柱耐受沖擊的極限問題都具有重要意義.首先發展了凱恩方程的休斯頓方法,使其可應用於變形體連接的多體系統,並以此理論為依據建立人體整椎脊柱沖擊動力學模型,此時考慮脊柱的大位移運動,每個椎骨的變形相對椎間盤的變形小得多,把脊柱看成由剛體(椎骨)和變形體(椎間盤)組成的多體系統.並以大型真人坐姿沖擊實驗結果進行了擬合,最後得到腰椎間關節剛度系數和阻尼系數
  3. The dynamic loads must be extrapolated using aeroelatic scale factors.

    動力必須用氣動彈性尺度來推算。
  4. Assemblage ) represented the coastal shallow - water environment ; factor 2 ( protelphidium tuberculatum assemblage ) represented the alongshore cold - water current area or cold shallow sea environment ; factor 3 ( elphidium magellanicum assemblage ) represented the sh allow sea ( < 20 - 30m depth ) deposit ; factor 4 ( ammonia ketienziensis assemblage ) represented the shallow - sea water more than 50m depth ; and factor 5 ( buccella frigida assemblage ) represented the colder - water sea environment ; and the distribution of factor load accorded with the character of benthic foraminifer community

    Q型分析揭示ey02 - 2孔5種有孔蟲組合,分別對應濱岸鹽沼環境、黃海沿岸流冷水分佈區、高潮坪淺海沉積環境、水深大於50m的現代淺海環境及較冷的沉積環境。因子載荷的分佈與有孔蟲群落特徵吻合較好。南黃海有孔蟲含量? ?水深轉換函數關系式有一定的局限性,並不能在南黃海陸架地區推廣使用。
  5. In different in terne die travel, the metal flow characterize in warm extrusion forming processes and the affection for the flow of metal stage which made by the difference between the blank bottom altitude and the axial direction limiting size in warm extrusion forming technique have been analysed we have gotten the equivalent strain field and the velocity field and other field variable that the blank in different in terne die travel and the die travel - load curve. at the same time, we have analyzed the contributing factor for the oil pump stator forming process optimized and achieve thereasonable die parameter for the war m extrusion forming finally, the optimized technics parameters were used into pilot production, then the qualified oil pump stator forging were produced, the analog results were compared with those of pilot production

    論文具體分析研究了不同成形工藝過程中金屬流動的特點,並對不同凸模行程下溫擠成形過程中的金屬流動特點、坯料連皮厚度(底部高度)與溫擠壓成形工藝中的軸向界限尺寸的差值對金屬變形階段的影響進行了分析,獲得了坯料在不同凸模行程下的等效應變場、速度場等場變量及凸模行程-曲線,同時對油泵定成形過程的影響素等進行了分析,優化並獲得了合理的溫擠成形工藝及模具參數。最後,利用模擬優化獲得的各項工藝參數進行生產實驗,得到實際生產出的合格油泵定件,並將模擬結果與生產實驗結果進行比較。
  6. The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks, detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack, a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading. the distributions of tz are minutely studied in the forward section of the cracks. strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions

    全文主要研究內容和學術貢獻如下: 1 .針對一般三維裂紋端部場應力約束準確解析的困難,對均勻拉伸作用下各向同性彈性板中穿透厚度中心直裂紋、半橢圓表面裂紋和1 / 4橢圓角裂紋進行了大量詳細的全場應力三維有限元分析,首次全面分析了非穿透裂紋端部場三維影響區范圍,給出了不同形狀三維裂紋前沿離面應力約束tz的數值解,並結合k場平面解給出了非穿透裂紋端部應力場k - tz雙參數描述。
  7. Using the complex potential method in the plane theory of elasticity of an anisotropic body, a series solution to the stress field of a finite plate containing multiple cracks subjected to arbitrary loads is obtained by means of the faber series expansion, and the stress intensity factors at the crack tips are calculated based on the theories of fracture mechanics. equivalence yield stress is introduced in order to consider the effects of the plastic zones, with which the strip yield criteria is developed in the article so that the effects of structural size and the crack interactions on the stress distribution can be considered accurately. the effects of plate size, crack size and crack distributions on the stress intensity factors as well as the residual strength of the plate are studied detailedly

    採用各向異性體平面彈性理論中的復勢方法,以faber級數為工具,得到了含多裂紋有限大板在任意作用下應力場的級數解,並應用斷裂力學方法確定裂紋尖端的應力強度;引入當量屈服應力考慮裂尖塑性區的影響,提出基於帶屈服準則的剩餘強度分析模型,能夠充分考慮結構尺寸和裂紋之間相互作用對應力場的影響;通過數值計算詳細討論了結構尺寸和裂紋之間位置關系對應力強度和結構剩餘強度的影響規律,得到了一系列對工程應用具有實用價值的結論。
  8. Finally, the distribution discipline of the cyclic changing temperature damage factor under the conditions of low temperature through the equivalent assumption and energy equivalent model based on damage mechanics theory. the fatigue life of the 4cm depth sawed cracking road is obtained under the conditions of - 15 based on the shenyang - dalian highway. in this paper, the inhomogeniety of asphalt concrete resulting from temperature change is considered, when the influence of the temperature change on the semi - rigid asphalt pavement concrete is analyzed

    最後,基於損傷力學理論,通過等效應變假設原理和能量等價模型,得到低溫下循環變溫損傷的分佈規律,以沈陽?大連高速公路的預鋸縫為工浙江大學博士學位論文廣義作用下道路與軟基共同作用研究王金昌2003年5月程背景,預測了4cm深的鋸縫在一巧路表變溫作用下的疲勞壽命。
  9. The second one discusses the rules of dynamic instability regions of serial system with different static load factor and different column cross - section size

    算例二討論了隨靜力及柱截面的不同,串聯體系動力失穩區間的變化規律。
  10. This paper mainly deals with the subjects below : the problem on fem analysis, general reliability analysis and calculation, and optimization based on the general reliability of the random or fuzzy parameters structure ; and also brings forward a method for getting the fuzzy answers from the fem equation by taking the fuzzy multiplier from a fuzzy variable ; in the fem analysis and structural reliability optimization, the randomcity and fuzziness of the structural physical parameters and the load applied on the structures are all considered

    文中對隨機和模糊參數結構在不確定性作用下的結構有限元分析、可靠性分析和基於可靠性的優化設計等問題進行了研究。以桿系結構為對象,提出結構分析的模糊方法,其中分別或同時考慮了結構材料的物理參數、構件的幾何尺寸和作用幅值等的隨機性和模糊性;對結構響應(位移、應力)為模糊變量時的廣義可靠度進行了推導。
  11. Effect of inclusion on the stress intensity factors under mechanical and thermal loads

    機械作用下夾雜對應力強度的影響
  12. It is revealed that higher grain yield can be best explained by adoption of advanced technologies, followed by material inputs, environment and climate, and policy

    研究結果表明,在糧食單產方面,科技進步水平具有較高,對糧食單產的影響力最大,其次是物質投入、環境與氣候和政策
  13. With the different loading ratio of parallel to axis and normal to axis direction, damage defects will occur bulking problem. by varying the degree of material anisotropy relative to the loading axis such as poisson ' s ratio and shear modulus, crack growth bulking strain value parallel to or normal to the loading axis is different. the parameters controlling the growth or arrest of the delamination damage are identified as the geometry and the depth of defects and radius of cylindrical etc. at last, it was investigated that the delamination damage is often induced by the tip of matrix damage under higher stress

    研究結果表明:殼體筒段受軸向拉伸和內壓作用時,軸向和環向的比率不同,母層和層可能發生拉伸屈曲,也可能發生收縮屈曲,或者同時發生拉伸和壓縮屈曲;母層與層各向異性存在差異,即泊松比與剪切模量不匹配時,將使層板的邊界上承受壓縮和剪切作用,當分層達到臨界狀態則發生屈曲,當母層與層的各向異性差異越大,則發生分層屈曲的可能性越大;分層損傷的屈曲應變值與層自身的彈性模量、分層層的形狀、厚度以及圓柱半徑等素有關。
  14. Rolling bearings - dynamic load ratings and rating life - life modification factor a ; amendment a2 iso 281 : 1990 amd 2 : 2000

    滾動軸承.動值和額定壽命.修改件2 :壽命改進a
  15. By using the arrived fundamental solution, combined with the " pseudo - traction " method and the boundary collocation, the stress intensity factor for crack in a finite plate under compressive loading are solved, the effects of crack direction and boundary condition on the stress intensity factor are analyzed, and the varying curves of the sif along with the width are given

    將所得的基本解與「偽力法」 、邊界配置法相結合,得到了有限板在壓縮作用下應力強度的解法,分析了裂紋方向和邊界條件對應力強度的影響,給出了應力強度隨板寬的變化曲線。
  16. In this thesis, the stress intensity factors of top - down cracks caused by loading are calculated using three dimensional finite element model and compared to the results of plane strain model

    本文採用三維有限元模型分析了作用下自上而下裂縫尖端的應力強度,並與二維平面應變模型分析的結果進行比較。
  17. As for traffic load, two situation were analyzed, symmetrical load and asymmetric load, in each of them, crack top ' s tension stress, shear stress and stress intensity factor were calculated, also the effect of structural parameters were analyzed

    把交通分為對稱和偏兩種情況,計算了裂縫尖端的拉應力、剪應力以及強度,並對路面結構進行了參數分析。
  18. In this thesis, the stress intensity factors of top - down cracks caused by load are calculated using three dimensional finite element method, and the fatigue propagation rules and fatigue lives of top - down cracks are analyzed using paris law

    本文採用三維有限元方法分析了作用下自上而下裂縫尖端的應力強度,並採用paris公式分析了自上而下裂縫的疲勞擴展規律與疲勞壽命。
  19. Sif of pavements with cracks under dynamic loading

    作用下含裂縫公路結構體的應力強度
  20. Based on the analysis of wheat production resources in china by using factor loading matrix theory, this paper builds the factor analysis models and ascertains the factors that influence the general output of wheat and their effect weight

    摘要在分析我國小麥生產資源的基礎上,採用因子載荷矩陣理論,通過構建分析模型,確定了影響小麥總產量的各及其影響權重。
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