The change of indoor contaminating material concentration is dynamical simulated by adjusting the flow of fiowrator . at the same time , the path formulas of simulate pollutant source is modified by experiment , and providing theoretical base for dynamic simulation 通过调节转子流量计的流量来达到动态模拟室内污染物质浓度的变化情况，并根据对实验结果的修正得出装配式洁净室室内模拟污染源的轨迹方程，为动态模拟提供了理论依据。
The three basic steps are as follows : firstly , the flow field is computed . secondly , the droplet trajectory equation is solved in order to determinate the limiting droplet trajectories and local collection coefficient . thirdly , a new iced shape is defined according to ice accretion model 其基本步骤一般分三步：计算物体的绕流流场；求解水滴轨迹方程以确定极限水滴轨迹和收集系数；根据冰增长模型来确定新的结冰翼型形状。
Second , the author introduced a new stability region , and programmed a trajectory of variable zmp , which was defined as a cosine curve ; the author also designed a cog - compensated method to keep the cog ’ s height ; based on dynamics of 3 - d inverted pendulum , the author educed the cog ’ s trajectory equation of the robot in the three - leg - support phase , and used third - order splint function to ensure the acceleration continuity of the robot ’ s cog in the four - leg - support phase . at last , walking patterns of the corresponding gait are generated through programmer design 然后,提出了一种新的支撑区域选取方法,采用了按余弦规律变化的zmp运动轨迹;为了维持机器人行走时重心高度不变,采用了一套有效的质心高度保持方法;基于三维倒立摆模型,推导了机器人三脚支撑期质心运动轨迹方程;采用三次样条曲线插值规划了四足支撑期加速度连续的质心运动轨迹。
In the paper , based on the method of low pair replacing with high pair , the problem of cam design was transferred to that of linkage design . by means of rotary unit vectors , the equations of displacement , velocity and acceleration of the replacement mechanisms were developed . and then , the virtual linkage ' s length and direction were deduced 论文基于高副低代原理，将平面凸轮机构设计与再现函数的平面连杆机构设计统一为同一种方法，运用圆向量函数建立代换机构的位移、速度、加速度矢量方程式，求取虚拟连杆杆长和方向，由此展开凸轮理论廓线、实际廓线、曲率半径和压力角的求解，并得出用圆形刀具加工凸轮时刀具中心的轨迹方程。
The chapter 3 and 4 are the core of this dissertation . under the theory of ship manoeuvre capability , it calculates the moving track and strap especially affected by wind and current . base on the analysis of those parameter , the basic theory is provided on navigational safety in the bridge waters 以试验及调研的数据为依据，运用第三章建立的数学模型分析、计算船舶在桥区运动的轨迹及航迹带，重点计算在风、流等因素影响下的船舶横向漂移量，并对船舶在桥区运动轨迹方程的参数及桥区影响船舶横向漂移量的因素进行分析，为船舶在桥区安全航行提供理论依据。
Abstract : in this paper ， a ray - optics analysis is performed to investigate the asymmetry of dual beam scanning field produced by a rotating polygon . some basic equations of dual beam scan are derived ， such as ， the position vector for the incident point ， the scalar expression for reflected ray ， scan pattern on observation plane ect . the far - field asymmetry of the scanning field has been discussed 文摘:应用几何光学理论研究了多光束转镜扫描场的非对称性，导出多光束扫描入射点位置矢量、反射线标量表达式、观察面上的扫描轨迹方程，并研究了扫描远场的非对称性。
Abstract : based on the principle that the radical force of each roller should be equal roughly during the stagger spinning process , matching relationships among reductions of rollers on slope are defined after considering fully various influence factors of radical force . then locus equation of each roller is defined by using geometry relationship 文摘:基于错距旋压过程中各旋轮的径向力大致相等的原则，在充分考虑了影响径向旋压力的各因素后，确定了处于斜坡时各旋轮的压下量之间的匹配关系，进而利用几何关系分别求得各旋轮的运动轨迹方程。
Neglecting the influence of some factors , such as liquid ' s viscidity etc . , upon the process of empty bubble breaking , the authors analyze the pressure variation on bubble ' s wall in all directions when it shrinks , and deduce the equation of its moving track towards the rigid side wall under the function of asymmetry pressure 摘要通过对忽略液体粘性等一些因素对空泡溃灭过程的影响，分析了空泡在收缩过程中，泡壁四周压强的变化，得出空泡在此不均匀压强的合力作用下向刚性边壁运动的轨迹方程。
Based on variable zmp and dynamics of 3 - d inverted pendulum , we educed the cog ( center of gravity ) ’ s trajectory equation of the robot in the single - support phase and transition of locomotion phase . and we used third - order spline function to ensure the acceleration continuity of the robot ’ s cog in the double - support phase . thereby , the smooth trajectory of cog was gained by planning 由基于可变zmp和三维倒立摆的动力学原理,推导出了单脚支撑期内和步行方式转换期间机器人的质心运动轨迹方程;并采用三次样条曲线来保证机器人在双脚支撑期质心加速度的连续性,从而由规划得到了光滑的质心运动轨迹。
On the basis of the known actual contour equation of cam in the disk typed cam mechanism with swinging oblique bottomed follower , this paper expounded another method for determining inversely the track equation of cutter center and the motion law of follower , and three key techniques in numerical inverse seeking were solved successfully by adopting the method of curve matching 摘要根据已知摆动斜底从动件盘状凸轮机构的凸轮实际廓线方程，阐述了反求确定刀具中心轨迹方程和从动件运动规律的另一种方法，并采用曲线拟合等方法成功地解决了数值反求中的3个关键技术。
