stiffness of the back 中文意思是什麼
stiffness of the back
解釋
脊強-
Through the analysis we found that the effect will become more obviously with the increase of thickness or width of superstratum and the decrease of the coefficient of foundation bed ; ( 3 ) anisotropy and nonlinear elastic f. e. m. model has been established and the effect of stress dispersion in compound two - layer foundation was analyzed on the base of the model. from the analysis we can conclude that the coefficient of subsidiary stress dispersion will amplify with the increase of thickness or width or stiffness of back - up coat ; ( 4 ) the formula which can be used in conventional calculation has been deduced for calculating the coefficient of subsidiary stress dispersion and it also has been affirmed to be reasonable through the checking calculation ; the whole theory of compound two - layer foundation has been brought forward in this paper and it ' ll enrich the theory of composite foundation
針對以上問題本文做了以下一些工作並得到若干結論： （ 1 ）提出了「復合雙層地基」的概念，並通過工程實例證明此概念的提出有其合理性和必要性； （ 2 ）用彈性地基梁理論證實了復合雙層地基確有應力擴散效應，且擴散效應隨上覆硬層厚度、剛度的增加而增大，隨下臥層基床系數的增大而減小； （ 3 ）建立了非線彈性、各向異性有限元模型，並以此為基礎分析了復合雙層地基的應力擴散效應，得到附加應力系數隨加固層厚度、寬度、剛度的增加而增大的結論； （ 4 ）推導了可用於常規計算的復合雙層地基應力擴散系數公式，並代入工程實例進行了驗證。 -
An improved design is proposed for blasting demolition of this kind of brick - concrete structure with good overall performance and great stiffness. wherever possible, it is desirable to increase blasting height to arrange blasting cut on the back of building in direction of dumping the building blasted and to adjust the initiation order by using sectional blaster cap
認為對于整體性好、剛度大的磚混結構樓房的爆破拆除，在條件允許時應多處理幾層以增加爆高，在樓房的傾倒背面也應布置爆破切口，還應採用分段雷管來調整其起爆順序，這樣才能達到更好的效果。 -
This articles presents the nomenclature, location and needling manipulation and indications of acupoint yanglao ( si 6 ) and its clinical application in the treatment of neck stiffness, back fascitis, prolapsed lumbar vertebra and sub - calcaneal fat pad lesion
摘要介紹養老穴命名、取穴方法、操作方法及適應癥，並列舉治療落枕、背肌筋膜炎、腰椎間盤突出癥、左跟骨下脂肪墊炎等病例4則。 -
Because the different stiffness match of front and rear suspension is very influencing to the ride comfort, optimal model of ride comfort is developed, regarding the rms of driver ’ s acceleration as the objection, regarding the stiffness of front and back suspension as optimal variable, regarding quiet flexibility 、 dynamic flexibility 、 frequency and dynamic load as nonlinear constraints. by matlab program and using sqp, the optimal match of front and back suspension ’ s stiffness is achieved, this optimal model consider not only request of quiet 、 dynamic flexibility 、 frequency and damp, but also security of run and peace of road, it is closer to the fact than other models which only consider partial restriction
由於前後懸架垂直剛度的不同匹配對汽車行駛平順性影響較大，論文建立以駕駛員垂直加速度的均方根值作為汽車行駛平順性優化目標值、以前後懸架垂直剛度作為優化變量的優化設計模型，並輔以靜撓度、動撓度、頻率、動載荷等非線性約束，使用序列二次規劃法，利用matlab編制優化程序，求得前後懸架垂直剛度的最優匹配值;此優化模型不僅包含動靜撓度及頻率和阻尼的限制，還考慮到汽車的行駛安全性和道路友好性，比文獻報道的只考慮部分約束的優化模型更切合實際情況。 -
During back substitution 2503 elements encounter a load applied to a degree of freedom that does not have any stiffness. the elements have been identified in element set warnelembacksubnostiffstep1inc1
這個錯誤是什麼意思？如何解決？字面上看一個荷載加到一個沒有剛度的節點上怎麼解釋？謝謝！
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