shakedown analysis 中文意思是什麼
shakedown analysis
解釋
篩簡分析-
Basic theorems and simplification for shakedown analysis of frame structure
阻滑樁加固土坡穩定性分析的上限解法 -
Shakedown analysis of soil structures based on elasto - plastic fem
基於彈塑性有限元分析土工安定性計算方法及其應用 -
Limit analysis and shakedown analysis of ultimate bearing capacity of offshore platform foundations
海洋平臺地基的極限分析與安定性分析 -
Shakedown analysis theory with non - associated flow rules and its application in soil mechanics
非關聯流動的安定性理論及在土力學中的應用 -
Numerical method of shakedown analysis based on kinematical - type theorem for incremental collapse and its applications
增量破壞型機動安定性分析方法及其應用 -
3. studying on prediction methods of the initiation life of aero - gear using shakedown analysis methods in order to directly consider in a quantitative way the details of stress - inelastic strain responses, residual stress and residual strain computations, fatigue crack initiation life was evaluated in aero - gear by using th
利用chaboche的材料模型，研究了航空齒輪韌性材料在彈、塑性安定下的輪齒接觸疲勞裂紋萌生準則，該研究結果與相關的齒輪實驗結果比較分析表明：塑性安定下的疲勞裂紋萌生預測方法預測航空齒輪的萌生壽命是較安全的。 -
Because the kinematically - admissble cyclic strain rate field required in kninematical - type theorem of shakedown analysis is rather difficult to be constructed, shakedown analysis based on kinematcal theorem cannot be directly applied. some conditions of kinematical - type shakedown theorem are released by ksnig and then the shakedown rules respectively for alternating plasticity and incremental collapse are obtained, for the numerical method based on the upper - bound theorem is formulated
兩種方法的特點是：運用一種分級循環加載方式來尋找機動許可的塑性應變率場，利用這兩種機動安定準則的特點來判斷結構的安定性，從而得到機動安定性分析的安定載荷。 -
The direct analysis method has more efficient than the line programming for the shakedown analysis of contact surface layer, therefore, the mentality of shakedown analysis of contact surface layer was introduced based on the direct analysis method as follows : first, the direct method for shakedown analysis was presented and its application to a two - dimensional rolling / sliding contact problem was demonstrated. the direct method consists of operator split technique, which transforms the elastic - plastic problem into a purely elastic problem and a residual problem with prescribed eigenstrains, and an incremental projection method to determine the eigenstrain
這些方法各有創新，其特點是計算速度快、收斂性好及精度可靠，計算規模避免了彈塑性隨動強化分析的非線性的影響，並使彈塑性問題轉化為殘余問題和線彈性問題，適用於滾動、滾滑及滑動接觸失效分析，從而有效地解決了接觸體安定性分析與裂紋萌生壽命預測的實際問題，也是本文對表面強化接觸失效的安定分析成為可能。 -
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。 -
In this paper, the numerical techniques and computational methods for limit analyses and shakedown analyses of soil structures and foundations are systematically investigated and then are employed to the assessment of the safety of the non - homogeneous foundations and the offshore platform foundations. in this dissertation, the computational method which combines elasto - plastic analysis with melan ' s theorem is developed and then applied to evaluate limit load and shakedown load of soil structures. elasto - plastic analyses are performed to obtain elasto - plastic stress field and elastic stress field
在巖土工程領域，飽和粘土的安定現象與飽和砂土的液化早已為人所知，但是安定性理論及其分析在工程實際中並沒用受到足夠的重視，在這方面的探索研究也極為有限，這與土體穩定性評價中廣泛應用極限分析方法極不協調，而在海洋平臺地基等實際工程中安定性問題又顯得十分重要。 -
The numerical methods developed in this thesis are employed to conduct both limit analysis and shakedown analysis for non - homogeneous foundations and offshore platform foundations. comparative studies are performed
將本文所提出的數值方法應用到巖土工程領域，對非均質地基進行了極限與安定性分析。 -
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。 -
This methodology avoids the operation of mathematical programming in traditional method of shakedown analysis and therefore obstruction due to large scale mathematical programming is overcome. the method for constructing a residual stress field based on the elasto - plastic analysis for soil structures do not need the linearization of the yield condition. the accuracy of numerical solution depends on elasto - plastic analysis
鑒于以上原因，本文深入、系統地研究了結構安定性分析的數值理論和計算方法，在此基礎上，基於經典安定理論建立了安定性分析的數值計算方法，並將其運用到巖土工程中地基的靜、動力穩定性評價中。 -
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。 -
Abstract : according to the requirement of mineral processing for particle size of grinding and based on closed - circuit test to second - stage grinding and production shakedown, the possibility and effect of which two - stage classification technology is used for transformation of the second - stage grinding flowsheet were discussed through calculation and analysis
文摘:考慮到選礦工藝對磨礦產品的粒度要求，根據第2段磨礦機局部閉路生產調試的結果，通過計算和分析，探討用兩段分級技術改造第2段磨礦流程的可能性及其效果。
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