impact formula 中文意思是什麼
impact formula
解釋
沖擊公式-
Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method
其主要功能是：當車輛滾翻時， rops能刺入未凍土壤而阻止車輛的進一步滾翻，降低滾翻的車輛對系著安全帶司機軋傷的可能性；保證rops在碰撞和沖擊變形不大的地面（如凍土、混疑土上、巖石）時，能具有相當大的抗連續沖擊能力；當車輛已經處于顛覆狀態時，已經變形的rops應能支撐住整車。落物保護裝置（簡稱fops ） ，其構件的布置方式要能遮蔽墜落的物體（如，樹木、巖石等） ，以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定，對大型推土機傾翻和落物保護裝置進行研究，在理論分析的基礎上，通過建立rops fops的力學分析模型，推導彈性、彈塑性階段rops fops變形的計算公式，建立一套可行的rops fops的非線性有限元分析計算方法。 -
With the material dynamic constitutive equation including damage and the effect of stain rate the predictable formula about ballistic limit velocity of fiber composite target. secondly based on the damage feature about ceramic / fiber composite target caused by impact load, analysis model about defense performance of ceramic / composite material target is formed and the predictable formula about ballistic limit velocity is also given. lastly using the reflection and projectile theory of stress wave the paper discusses the design of ceramic / composite material target, optimizes the design of double layer ceramic / composite targets, gains optimal coefficient under certain area density and discusses the variety relationship of area density and thickness with optimal coefficient u nder some ballistic limit velocity 3
首先，分析了纖維類正交鋪層復合靶板在沖擊載荷作用下的損傷破壞機理，結合包含損傷和應變率效應的材料動態本構方程，建立了纖維復合材料板彈道極限速度的預測公式；其次，根據陶瓷/纖維材料復合靶板在沖擊載荷下的破壞特點，建立了陶瓷/復合材料靶板抗彈性能分析模型，給出了彈道極限速度預測公式；最後，利用應力波反射和透射理論討論了陶瓷/復合材料靶板的設計問題，對雙層陶瓷復合靶板的優化設計進行了分析，給出了在一定面密度下的最佳優化系數，討論了一定彈道極限速度下的面密度和厚度隨優化系數的變化關系。 -
This paper puts forward the main influence factors to calculate the error of the fractured rock mass permeability coefficient using the permeability tensor on the basis of analyzing the fractured rock mass permeability tensor formula, and also discusses their impact on the calculation result in detail
作者在分析裂隙巖體滲透張量計算公式的基礎上，提出了利用滲透張量求取裂隙巖體滲透系數的誤差的主要影響因素，詳細論述了各因素對計算結果的影響。 -
The new formula can be used to estimate the water temperature of river where there is no water temperature monitoring data, and can provide the scientific foundation for environmental impact assessment of river basin development
研究成果可用於缺乏水溫監測資料河流的水溫估算，為流域開發的環境影響評價提供科學依據。 -
The impact of breast and formula milk on the development of gastric emptying and the jaundice in preterm neonates
不同奶方喂養對早產兒胃排空及黃疸的影響 -
The cause ( s ) and characteristics of vehicle rollover accident are analyzed, the general theory and method are given on reconstruction analysis of this kind of accident. the ‘ three phases ’ theory of vehicle rollover reconstruction analysis is put forward, which are pre - trip phrase, trip phrase and post - trip phrase, adopting relevant theory models, experiential formula and trajectory model in reconstruction analysis. on the basis of certain assumptions, several dynamics and kinematics models describing the vehicle rollover process are established, and the functions between cvs and impact time, impact height or other parameters are gained. then the
基於以上研究背景和社會需求，本文在國內外現有研究成果的基礎上，對汽車滾翻事故再現分析的一般理論和方法進行研究，擬定應用於實際汽車滾翻事故再現分析的一般流程、演算法和規則，建立了滾翻軌跡模型，開發了滾翻事故再現分析模塊（ car - rar ） 。 -
On calculation formula of wave impact pressure acting on offshore open structure
離岸透空式結構波浪上托力沖擊壓強計算公式的比較 -
The column effective length of strong bracing system can be calculated according to current design code, when consider the axial force changing impact on its effective length of the column, this text has offered the " g coefficient of correction " method. for weak bracing system, this paper provided the concrete formula of calculating the effective 1 ength coefficient of column
強支撐體系中柱子計算長度可以按照現行規范計算，當考慮柱子軸力變化對其計算長度的影響時，本文提供了修正g系數法；對於弱支撐體系，本文提供了計算柱子計算長度系數的具體公式。 -
The limited range ordinate by the code for design of masonry structures was validated. ( 3 ) using the program, impact to the compressive strength of ratio of grout for concrete and ratio of height to section thickness to the compressive strength was discussed. a new formula was advanced in this article
（ 3 ）利用本文編制的程序，採用回歸分析方法討論配筋砌塊砌體剪力墻中灌芯率和灌芯混凝土強度對其抗壓強度的影響，並提出了本文建議的配筋砌塊砌體剪力墻抗壓強度的計算公式。 -
According to the calculation results of general erosion of riverbed of bridge, this paper analyzes the impact of the main parameters in the formula to general erosion, gives the scope of application and defects of that formula, and proposes a suggestion on determination of general erosion depth
摘要根據橋位河床的一般沖刷計算成果，分析計算公式中主要參數對一般沖刷的影響，指出公式的適用范圍和不足，提出確定一般沖刷深度的建議。 -
The impact of the shape - change trend towards round on bending stress during the process of pressure increase was researched, a common formula and a simplified one for bending stress calculation were established, the formula of maximum bending stress caused by round degree of cylindrical vessels was deduced, the calculation method for wall thickness of pressure vessels of elliptical cross section was introduced
摘要研究了橢圓形截面容器在升壓過程中的趨圓變形對彎曲應力的影響，建立了彎曲應力通用計算公式和簡化計算公式，導出了由圓度引起的圓筒形容器最大彎曲應力計算公式，給出了橢圓形截面容器壁厚的計算方法。 -
The paper is composed of five chapters the first chapter first introduces the concept, characteristics and the course of development of the stock index futures, then deduces the pricing formula of stock index futures and further analyses the functions of stock index futures and the impact of its transaction on the fluctuation of the spot transactions. the second chapter demonstrates the need and feasibility of the introduction of the stock index futures in china. through the empirical analysis of the market risk of china ' s stock market, we can see that the risk difference between individual stocks, so a portfolio investment wo n ' t help much in risk aversion
本論文共分為五章，第一章在介紹股票指數期貨的概念、特點以及產生與發展的過程的基礎上，對股票指數期貨的定價公式進行了推導，從而引出股票指數期貨的套期保值、指數套利、資產配置、組合保險等作用，進而分析股票指數期貨交易對股票現貨市場波動性的影響；第二章主要是對中國推出股票指數期貨的必要性和可行性進行論證，通過對中國股票市場風險測度的實證分析，得出了中國股票價格波動齊漲齊落，個股之間的風險差異小的特點，因此，投資者進行投資組合的避險效果就很有限，無論是個人投資者還是機構投資者，都必須面臨中國股票市場巨大風險的事實。
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