Adopting paraboloid model of tip surface, presented the dynamics equation of negative ion flight in tip field and solve it with numerical method.
采用针尖的旋抛物面模型，给出了表面生成的负离子在针尖场中飞行的动力学方程，并用数值方法求解。
2
A model test of stressed-skin hyperbolic paraboloid cantilever structure has been made and the results obtained from calculation by the given method accord basically with those from the model test.
同时还进行了双曲抛物面应力蒙皮悬挑结构的模型试验，试验表明理论计算与实测结果是基本符合的。
3
Cable structures with hyperbolic paraboloid shape are analysed in detail for the form finding and structural loading calculation as well as fire reaction at high temperature by FEA method.