摘要：Umbrella-shaped assembly of cylindrical fins is optimized by adopting analytical method and taking dimensionless mean thermal resistance (MTR) as performance index. The optimal construct of umbrella-shaped assembly is obtained. The results show that the heat conductance performance of the assembly becomes ever worse with ever greater number of elemental cylindrical fins,the umbrella-shaped assembly reduces to cylindrical fin in some values of design parameters,and the diameters’ dependence on design parameters is weak for the optimized assembly. An equivalent thermal resistance defined based on entransy dissipation rate (EDR) reflects an average heat transfer effect of the assembly. The constructal design corresponding to the minimum EDR (or MTR) should be adopted for designing an assembly of fins in engineering at the limit safe condition.

摘要：研制情况 GEC费伦蒂公司的fin 1155是一种小型、轻重量惯性导航系统,主要用于地面车辆,例如坦克、装甲输送车、自行火炮、自行迫击炮和牵引炮兵系统。它提供连续的位置输出和在俯仰、纵摇和方位方面的姿态输出,因而提供了适于导航、转向和瞄准姿态的数据。 系统以两个万向架固定的惯性平台为基础,该平台是专门设计的,用来从不太复杂的半捷联式惯性平台提供惯性特性。