The dissertation consists of seven chapters which are dealt with many fields , such as cad / cam , aircraft design , computational geometry , computer graphics etc . the research achievements and main contents are as follows : 1 论文共分七章,内容涉及cad cam 、飞行器设计、计算几何、计算机图形学等。既有理论研究、方法探讨、又有实际应用。
In order to respond the rapid change of global market and develop high quality product in short time , it ’ s more and more important to use cooperative design method in enterprise . it can solve many difficulties in aircraft design because of different time and place 因此,将协同设计工作模式应用到飞行器这一复杂产品设计中,能够解决传统飞行器设计中由于时间和空间方面而引起的设计难题。
Electro - hydraulic servo loading system ( ehsls ) is an important simulation system in hard ware - in - loop flight simulation laboratory , which can simulate aerodynamic loads acting on flight vehicle , such as missiles , planes . its performance of test is important on the design of flight vehicle 电液伺服负载模拟器是半实物仿真试验室中模拟飞行器在飞行中舵面所受空气动力载荷的重要设备,它的试验能力高低对飞行器设计起着重要作用。
Accurate calculation of aircraft steady and unsteady aerodynamics and flutter characteristics , especially in the transonic speed range is a crucial problem for aircraft designers . it is very important for us to develop an efficient , accurate , robust navier - stokes / euler flow solver that could be used to study transonic steady and unsteady flowfields 飞行器的定常和非定常气动力的准确数值求解及颤振特性研究,特别是跨音速范围内的准确数值求解及研究,一直以来都是飞行器设计工作者必须面对的重要研究难题。
Wind tunnels are essential for research and teaching of aerodynamics ; they provide a major means for discovering and confirming airflow phenomena , exploring and revealing airflow mechanism , seeking and understanding airflow rules , and providing fine aerodynamic configuration and aerodynamic characteristic data for aircraft design . the development of advanced wind tunnel is the prerequisite for t enhancing accuracy and standard of wind tunnel experiments , playing an important role in improving product aerodynamic design 风洞是空气动力学科研和教学的必要条件,是发现和确认流动现象、探索和揭示流动机理、寻求和了解流动规律,以及为飞行器设计提供优良的气动布局和空气动力学特性数据的主要手段,先进风洞的建设,是提高风洞实验精度及水平的前提,对提高产品的气动设计质量具有重要的作用。