The multiple - object optimum design for the round angle of the universal profiled roll based on the software ansys 軟件的萬(wàn)能型鋼軋機(jī)機(jī)架圓角的多目標(biāo)優(yōu)化設(shè)計(jì)
Simulation results show that better atomization can be realized by enhancing the cavitation intensity via increasing the injection pressure difference or decreasing the nozzle inlet round angle - radius ratio 通過模擬計(jì)算可知,提高噴射壓差和減小噴孔入口圓角半徑都可以提高空穴強(qiáng)度,同時(shí)也發(fā)現(xiàn)提高噴孔長(zhǎng)徑比可以使空穴在噴孔出口截面上分布更為均勻。
Based on this model , the effects of geometric and structural parameters , such as injection pressure , rear pressure , length - diameter ratio , inlet round angle - radius ratio and non - axis symmetry of nozzle , on the distribution of the cavitation inside the nozzle are analyzed 基于這一模型進(jìn)一步分析了噴射壓力、背壓和噴孔長(zhǎng)徑比、噴孔入口圓角比、非軸對(duì)稱噴孔等幾何結(jié)構(gòu)參數(shù)對(duì)噴孔內(nèi)空穴分布的影響。
( 6 ) in this paper . adopting fea software ansys to simulation and analysis the al ecap process . in order to spread out studying of ecap in the future . the results show : die comer angle , the radius of round angle , the friction coffience of workpiece and die , the properties of die ( elastic modulus , possion ratio ) et al , have some degree impact on the deformation of materials ( 6 )采用有限元( fea )分析軟件ansys對(duì)al的擠壓過程進(jìn)行ecap仿真與分析,為后續(xù)研究工作做好鋪墊,分析結(jié)果表明:外切角、圓角半徑、試樣與凹模之間的摩擦系數(shù)、凹模本身的特性(如彈性模量、泊松比等)等等,對(duì)材料的變形量都由不同程度的影響。
A concept of step - by - step round angle surface for transition and its mathematic modeling was put forward first time . different fiber placement patterns ( 0 , 90and 45 ply ) and their simulation module were designed . a simulation system for fp - - - - - - simjoint system for satellite triangle conjunction was composted , which include mandrel modeling , fiber placement trace in mandrel simulation and robot ' s kinematics simulation 詳盡描述了構(gòu)架式衛(wèi)星接頭的幾何建模過程,針對(duì)所研究對(duì)象的特點(diǎn),提出了用于變截面曲面之間過渡的漸進(jìn)圓角過渡曲面的概念,并建立了相應(yīng)的數(shù)學(xué)模型;針對(duì)構(gòu)架式衛(wèi)星接頭設(shè)計(jì)了90 、 0和45等不同角度對(duì)應(yīng)的纖維路徑和鋪絲線型仿真模塊。