surface contact stress 中文意思是什麼
surface contact stress
解釋
表面接觸應力-
Secondly, through analyzing the failure instance of electrical connectors in using and testing environment, educed contact fault was a main mode of failure of electrical connectors. on natural working conditions, the main reasons which caused fault of electrical connector were contact stress decreasing, microseism wearing and tearing and surface film growing
而在正常的工作條件下，造成電連接器電接觸失效，即決定電連接器工作壽命的主要原因是接觸壓力減小、微動磨損和表面膜層的生長，而影響接觸壓力、微動磨損和表面膜層變化的主要因素是環境振動和溫度。 -
After being improved, the gear surface contact fatigue strength obeys weibull distribution and stress obeys normal distribution, the gear bottom bend fatigue strength and stress obey logarithm normal distribution, according to the relation of average safe rate and reliability, then the gear strength reliability design and check equations can be deduced
將齒面接觸疲勞強度按威布爾分佈、應力按正態分佈處理，將齒根彎曲疲勞強度和應力均按對數正態分佈處理，再根據平均安全系數和可靠度之間的關系，推導出了齒輪強度可靠性設計和校核公式。 -
Statistical characteristic of fatigue strength of contact wires was obtained by comprehensively considering such coefficients as stress concentration, size and surface quality
綜合考慮了接觸線應力集中系數、尺寸系數、表面質量系數和材料疲勞強度的影響，得到了接觸線疲勞極限的統計特徵。 -
Considering different microstructures and properties of metal of hardened layer and the core of back - up roller, the distributions of shear stress below surface and the contact stress between work roller and back - up roller of a four - high - mill were simulated with nonlinear fem
摘要考慮軋輥表面淬硬層與其心部金屬材料組織性能的差別，採用非線性有限元方法對四輥軋機的工作輥與支撐輥間接觸應力及輥內剪應力分佈進行模擬，並將模擬結果與傳統強度校核方法進行了對比分析，研究了軋輥淬硬層厚度對輥間接觸應力的影響規律。 -
And it is calculated and analyzed the distribution and quantity of slag thermal stress created by boiler load shift. thermal stress quantity can be as big as e / 1000 and is enough to destroy slag structure and to make some drop. it is also concluded that the walltube parameters can only affect on thermal stress of the slag that is near to contact surface and contribute little to slag drop
針對鍋爐變負荷運行時爐膛的自然掉渣現象，分析鍋爐水冷壁渣層中熱應力的產生機理，建立了水冷壁渣層熱應力的計算模型，計算分析了鍋爐大范圍變負荷運行產生的渣層熱應力變化大小和分佈，並分析渣層熱應力的影響因素。 -
5 、 as adding the friction of the spiral bevel gear, the variety of the contact stress of teeth surface and the bending stress of teeth root vs the different meshing position are presented
5 、初步探討了考慮干摩擦的情況下，螺旋錐齒輪副動態嚙合過程中齒面接觸應力及齒根彎曲應力隨嚙合位置變化的規律。 -
Second, the direct analysis method was applied to determine the residual stress of rolling / sliding contact between cylinder and plane. more over the limit of shakedown load of contact surface layer was computed with different friction affection
對二維滾滑彈塑性接觸的安定狀態，建立循環載荷下接觸安定狀態分析的計算機應用程序，並進行了殘余應變和殘余應力的分析計算。 -
Because of the different material property of the piles and soil, shear stress is produced on the contact surface between piles and soil, which may cause slide and crazing of the soil mass under workload. in order to reflect the mechanical character precisely on the contact surface, a new kind of element, plane - plane contact element is introduced. the principle of the process is presented in detail and the finite element model is established with the consideration of the soil ' s elastoplastic constitutive relation
由於樁體結構的材料性能與周圍土層性質相差較大，在荷載作用下有可能在其接觸面上產生較大的剪應力從而導致錯動或開裂，為了充分反映樁土接觸面上的受力及變形特徵，考慮樁土之間的共同作用，在樁土接觸面處設置面面接觸單元，將採用接觸單元和不採用接觸單元兩種演算法的計算結果與模型試驗結果進行比較，驗證了本文接觸界面處理的合理性。 -
The fem results indicated that as to the rough surfaces in sliding contact, the value of the contact pressure was very high which coursed a high value of the heat flow rate, meanwhile the sliding time was not enough for the frictional heat to transfer, thus the highest value of the body temperature occurred just on the sliding surfaces, which possessed a sharp thermal gradient in direction perpendicular to the sliding surface. so the great thermal stress was caused just by the sharp gradient and the thermal elastic distortion with which the contact pressure changed occurred simultaneously, thus this change of the contact pressure would affect the temperature distribution in return
對于相對滑動的粗糙表面，因實際接觸面積小而導致接觸壓力很大，這樣使得熱流密度會很大，同時由於滑動時間很短，熱來不及傳導，最高溫度發生在摩擦表面，在垂直於摩擦面的方向有很大的溫度梯度，使得熱應力很大，且最大應力發生在表面，同時產生熱彈性變形，這種變形使得接觸區域內的壓力分佈發生變化，這種變化又反過來影響了接觸區域的溫度分佈。 -
Secondly, been generalized the failure data of electrical connectors from working and testing environment, electric contact failure, insulation failure, mechanical connection failure and other failure are four mainly failure modes of connectors, moreover, built the faulty - tree to analyze their reliability level. however, contact fault failure was the most prevalent mode of electrical connectors. under natural working and reserving conditions, the contact stress decreasing, fretting and surface film growing are mainly reasons to make electrical connector failure
其次，通過對現場、試驗場電連接器的失效情況進行統計和分析，總結出電連接器的四種主要失效模式：電接觸失效、絕緣失效、機械連接失效和其他失效，並對電連接器進行了故障樹分析，指出電接觸失效是電連接器失效的主要形式，而在正常的工作條件下，造成電接觸失效，即決定電連接器工作壽命的主要原因是氧化膜層的生長、接觸對磨損以及磨損腐蝕物的堆積，而影響氧化膜層的生長、接觸對磨損以及磨損腐蝕物堆積的主要因素是環境振動和溫度應力，為電連接器進行失效機理分析奠定了基礎。 -
Based on the analysis, we gave an example to study the dynamic contact with friction of the intermittent joint, and got some essential rules : the friction coefficient could n ' t influence the distributing of dynamic stress on the contact surface, and the roading rates affected evidently on the dynamic characteristic on the contact surface. in the last part, this paper made respectively use of the time - history method and the response spectrum method to analyze the dynamic response of the rock slope on baise hydraulic power plant, and got the coincident resultant. simultaneously, the contact theory was applied to study the stability of the intermittent joints
基於上述的接觸理論和接觸分析結果，本文在最後一部分中分別利用動力時程法和反應譜法對百色水電站尾水渠的巖質邊坡進行動力響應分析，兩者計算方法得出比較一致的結果，同時採用動力摩擦接觸理論重點分析了斷層對于邊坡的穩定影響，認為斷層的存在會使得巖坡的穩定性降低，在地震等動力荷載的作用下對于斷層將發生張開、閉合和錯動現象，尤其是動力荷載和其他荷載如滲流力等的耦合作用將會對斷層產生極為不利的後果，進而影響巖坡的整體動力穩定，應該要引起足夠的重視。 -
Study on surface contact stress distribution properties for multi - layered foundation during dynamic consolidation
強夯作用下成層地基的表面接觸應力分佈特徵 -
The experiment on the conclusion of shakedown analysis with the direct analysis method was conducted for proving residual stress of contact surface layer of the rolled specimen. the paper concerns itself on the following specific aspects : 1
本文針對接觸表面層的強化與疲勞失效問題，提出通過研究接觸表面層在循環載荷作用下的安定特性，來建立強化設計與疲勞評估準則。 -
In this thesis, the strain - hardening model of contact surface layer, the numerical theories and computational methods for shakedown analyses of contact body are systematically studied and applied to the aero - gear. the mentality is that the effects of the surface hardening and contact fatigue on contact surface layer under cycle contact loading are investigated by using shakedown analysis methods considering in a quantitative way the details of stress - inelastic strain responses, residual stress and residual strain computations
在國家「航空基金」 、 「總裝預研基金」等課題的資助下，本文以接觸體安定分析與接觸表面層疲勞裂紋萌生壽命預測一般演算法研究為手段，深入、系統研究了接觸體安定分析的數值理論和計算方法，全面研究了影響航空齒輪表面強化層失效的原因並提出了齒輪表面強化層裂紋萌生壽命的預測方法。 -
In the mechanism analysis of consolidation of foundation soil by heavy tamping method, the dynamic contact stress calculation of hammer bottom and foundation surface is the key technical problem
摘要在強夯法加固地基機理的分析中，夯?底部與地基表面的動接觸應力計算是關鍵技術問題。 -
The curvature radius was derivated and the contact stress of the three - arc - sect isometric type surface was calculated through the elastic dynamics theory
應用彈性力學理論，推導出接觸點的曲率半徑，對三弧段等距型面聯接進行接觸應力計算。
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