索柱線 的英文怎麼說
中文拼音 [suǒzhùxiàn]
索柱線
英文
spring noise-
Chordoma, a frequent malignant tumor of bone, is usually adult epithelial tumors arising from embryonic notochord remains of the axial skeleton
脊索瘤是發生於神經軸中線並侵及鄰近骨的脊索殘留物，是脊柱腫瘤中最常見的一種。In this paper, an optimization design cad system of detached foundation of transmitting electricity iron tower has been studied. the system uses an easy and efficient method named grid search to find out the minimum cost of an detached foundation. at the same time, the depth and width of foundation, the width of column, the thickness of foundation plan have been ascertained
本論文研究開發的輸電鐵塔獨立基礎優化設計cad系統，以最小費用為目標，採用簡單、有效、易於編程的有約束非線性規劃方法? ?網格搜索法，對輸電鐵塔獨立基礎進行優化設計，確定出基礎埋深、基柱寬度、底板寬度、底板厚度等合理截面尺寸，並開發出計算、出圖一體化的優化設計計算機輔助設計系統。On the basis of analysis of design criterion of shaft washer and housing washer of tandem composite type cylindrical roller thrust bearing, we present a mathematic model for optimal design in accordance with line contact requirement for cylindrical roller and race, design the washers thickness and thickness variation angle by the search algorithm of constrained stochastic direction
摘要在分析串聯組合型推力圓柱滾子軸承軸圈和座圈設計準則的基礎上，按滾子與滾道線接觸要求建立其最優化設計數學模型，採用機械優化設計中的約束隨機方向搜索法計算軸圈和座圈的厚度、厚度變化角。Three circumstances on the geometric non - linear analysis are considered : the sag phenomenon of cables the nonlinear behavior of bending members and the geometry change due to large displacement. the non - linear behavior of cables is verified by introduced the ernst cable modulus of elasticity and cr formation is applied to analyze the non - linear of beams. an incremental - iterative method based on the newton - raphson method is adopted here to solve the non - behavior equations
幾何非線性分析主要考慮三個方面：索的垂度效應、樑柱效應和結構大位移，其中：索的非線性分析採用ernst彈性模量對索材料的彈性模量進行修正，計及索的垂度效應的方法；梁單元的非線性分析採用cr列式法，計算中採用基於newton - raphson法的增量迭代方法求解非線性方程組。Abstract : a semi - analytical method is used to modelling the pract ical 3 - zone simulated moving bed chromatography ( smbc ) process for optimal searc hing. the switch time which is the most important operation parameter of 3 - zone smbc is analyzed based on the nonlinear batch chromatography theory firstly, and then adjusted by the deviation between the output and the expectation. the switch time approaches the optimization very soon by continously searching on the basi s of the theory. the parameters of the practical system are inputted into simulat ion, the result is used in our experiment and a good separation is obtained
文摘:針對三帶模擬移動床色譜的實際模型，用一種融合了前饋與反饋的半解析優化計算方法對三帶模擬移動床色譜過程進行了模擬.首先，由非線性單柱色譜理論解析地給出一個三帶模擬移動床色譜的主要操作參數即切換時間值，然後利用所得結果與目標量之間的偏差來校正切換時間，在理論指導下進行優化搜索，切換時間能很快達到最佳值.將測得的系統參數引入計算，並將計算結果用於實際操作，得到了很好的分離效果分享友人