Since the multiple scattering should be considered, the scattering problem of many-cylinders is more complicated than single cylinder. By using scattering matrix method to solve the scattering problem of many-cylinders, first we have to express the incident fieldand scattered field by special function（for example, Bessel function and Hankel function）under cylindrical coordinate, then use the addition theorem of special function to get a linear system of equations to relate the incident field coefficients and scattered field coefficients. The incident and scattered field coefficients for every cylinder can be solved from the linear equations by matching electromagnetic boundary condition pointwisely.

單顆圓柱散射體的散射場解析解很早就被解出婷婷精品图区，而多個圓柱陣列的散射場問題因為涉及到入射光在圓柱與圓柱間的多重散射，故散射行為較單顆圓柱的散射復(fù)雜在线视频青青，因此圓柱陣列的多重散射問題需要利用加法定理來處理日韩在线丝袜福利网站；散射矩陣法的主要精神即是先用圓柱座標(biāo)下的特殊函數(shù)對平面波和圓柱散射體的內(nèi)外域電磁場做無窮級數(shù)展開，再藉由特殊函數(shù)的加法定理將所有圓柱散射體的展開中心移到同一個展開中心深夜人妻无码碰碰碰碰，最后可以得到一組連結(jié)整個散射系統(tǒng)的入射電磁場系數(shù)及散射電磁場系數(shù)的線性方程組性爱视频喷水，將該組線性方程配合電磁場在散射體邊界的連續(xù)條件，便可分別求出圓柱陣列中各個圓柱體的內(nèi)部電磁場與外部散射場国产v日产v欧美v韩国视频，再利用線性疊加原理即可求得整個圓柱系統(tǒng)的全域電磁場分布嗯啊～嗯啊使劲视频在线观看。

Firstly, the equation for stress intensity factors under static uniform pressure is used as the reference case, and then the weight function for a thick-walled cylinder containing a radial edge crack can be worked out. Secondly, the dynamic stresses in uncracked thick-walled cylinders are solved under internal impulsive pressure by using mode shape function method. The solution consists of a quasi-static solution satisfying inhomogeneous boundary conditions and a dynamic solution satisfying homogeneous boundary conditions, and the history and distribution of dynamic stresses in thick-walled cylinders are derived in terms of Fourier–Bessel series. Finally, the dynamic stress intensity factor equations for thick-walled cylinder containing a radial edge crack subjected to internal impulsive pressure are given by dynamic weight function method.

首先采用靜態(tài)內(nèi)壓下的應(yīng)力強度因子作為參考解，得到了帶徑向邊裂紋厚壁圓筒的權(quán)函數(shù)；然后用振型函數(shù)方法推導(dǎo)無裂紋厚壁圓筒在沖擊內(nèi)壓下的動應(yīng)力響應(yīng)九九久久精品无码专区，分析中將相應(yīng)的彈性動力學(xué)方程解分為滿足非齊次邊界條件的準(zhǔn)靜態(tài)解和滿足齊次邊界條件的動態(tài)解的疊加色哟哟网址，利用傅立葉-貝塞爾級數(shù)展開，推導(dǎo)出了厚壁圓筒內(nèi)動應(yīng)力的響應(yīng)歷程和分布規(guī)律在线国产精品；最后由動應(yīng)力權(quán)函數(shù)方法導(dǎo)出帶徑向邊裂紋厚壁筒在沖擊內(nèi)壓下的動態(tài)應(yīng)力強度因子計算公式男女无遮挡猛进猛出动态图。

Whether the inner cylinder is drilled or not do not affect obviously the measurement accuracy. The accuracy of the drilled outside cylinder is higher than the undrilled ones, and the drilled holes are better to be equally distributed, further more, the number is less than 36 with the diameter of 3mm. The sealed outside cylinder can lower the measurement accuracy. The thinner material of sealed inside cylinder is and the more ventilative function is, the higher accuracy will be achieved. Moreover, when the space between inside and outside cylinder is smaller, the measurement accuracy also becomes higher.

結(jié)果表明：各處理精度均較高，最高達97.40%人人操,人人看,人人叉；內(nèi)筒打孔與否對測量精度無顯著影響男人天堂网免费视频在线；套筒打孔的處理比不打孔的處理精度更高，且孔洞適宜均勻分布欧美熟女乱交，但數(shù)目不可過多手机在线一区二区，直徑為3mm時不宜超過36個；套筒封底會降低測量精度最新免费黄网，內(nèi)筒封底材料越薄97综合干视频、透氣性能越好精度越高；內(nèi)筒與套筒的間隔較小時精度更高国产超污精品A级毛片。

circular cylinder function：圓柱函數(shù)

圓柱 circular cylinder | 圓柱函數(shù) circular cylinder function | 圓柱坐標(biāo) circular cylindrical coordinates

elliptic cylinder function：橢圓柱函數(shù)

elliptic cylinder 橢圓柱 | elliptic cylinder function 橢圓柱函數(shù) | elliptic differential operator 橢圓型微分算子

elliptic cylinder function：扁圓柱函數(shù)

320. elliptic cylinder coordinates 扁圓柱坐標(biāo) | 321. elliptic cylinder function 扁圓柱函數(shù) | 322. elliptic gear 扁圓齒輪