Solution for continuous beam problem using initial parameter equation 用初參數(shù)方程求解連續(xù)梁問題
In this paper we mainly use initial value problem ( ivp ) method to study the existence and uniqueness of the solution to the equation , which is a kind of semi - linear differential one 本文主要使用常微分方程初值問題( initialvalueproblem ? ? ivp )方法對一類半線性微分方程的解的存在性和唯一性加以研究。
The results indicate that the stability for bifurcation point equilibrium configuration and post - buckling equilibrium path of roof strata can be revealed and an effective method for determining displacement field of imperfection structure can be provided by using initial post - buckling theory 應用初始后屈曲理論可揭示淺埋煤層長壁開采頂板巖層的分叉點平衡構形及后屈曲平衡路徑的穩(wěn)定性,是確定非完善結構位移場的一種有效方法。
In accordance with the occurrence behavior of roof strata and the fracture characteristics of key stratum in shallow seam longwall mining , studied post - buckling behavior of roof key stratum in the process of mining by using initial post - buckling theory , which derived a critical load and a breaking span of the main roof during the first weighting , determined the final subsidence and the maximum rotation angle for broken key stratum , and presented an application with the example of daliuta 1203 face 摘要根據(jù)淺埋煤層頂板巖層的賦存特點和長壁開采時關鍵層的變形破斷特征,應用初始后屈曲理論探討了開采過程中頂板關鍵層的后屈曲性態(tài),得出了老頂初次來壓時頂板的臨界載荷和破斷步距,確定了頂板破斷后的極限下沉量和回轉角,并以神東礦區(qū)大柳塔1203工作面為例給出了工程實例。
Because formation satellite ' s relative position is very close and the geometry can change easily , based on the relative motion of satellites , the initial phase bias could be quickly resolved simulation solution indicates that phase bias can be determined quickly and the relative states accuracy should be improved by using initial phase bias 由于編隊衛(wèi)星相對距離近,相對構型容易改變,因此采用衛(wèi)星相對機動的方式進行整周模糊度的快速初始化。仿真結果表明,基于衛(wèi)星機動,整周模糊度可很快初始化。利用初始化的整周模糊度,相對狀態(tài)的解算精度會大大提高。