水下无人装备前沿发展趋势与关键技术分析

水下无人装备是海上军事竞争新的制高点之一,是赢得新时代水下攻防对抗的重要保障。当前各类水下无人装备飞速发展和应用,文中以无人水下航行器和水下无人预置系统为例,梳理前沿发展趋势与关键技术。通过总结国内外水下无人装备的发展现状,分析发展中面临的挑战,对水下无人装备未来的发展趋势进行了展望,并在此基础上梳理了发展中需要攻克的关键技术难点,进一步提出未来发展思考和建议,为水下无人装备技术研究提供有益的参考和借鉴。

A Double-Stage Surrogate-Based Shape Optimization Strategy for Blended-Wing-Body Underwater Gliders

In this paper,a Double-stage Surrogate-based Shape Optimization(DSSO)strategy for Blended-Wing-Body Underwater Gliders(BWBUGs)is proposed to reduce the computational cost.In this strategy,a double-stage surrogate model is developed to replace the high-dimensional objective in shape optimization.Specifically,several First-stage Surrogate Models(FSMs)are built for the sectional airfoils,and the second-stage surrogate model is constructed with respect to the outputs of FSMs.Besides,a Multi-start Space Reduction surrogate-based global optimization method is applied to search for the optimum.In order to validate the efficiency of the proposed method,DSSO is first compared with an ordinary One-stage Surrogate-based Optimization strategy by using the same optimization method.Then,the other three popular surrogate-based optimization methods and three heuristic algorithms are utilized to make comparisons.Results indicate that the lift-to-drag ratio of the BWBUG is improved by 9.35%with DSSO,which outperforms the comparison methods.Besides,DSSO reduces more than 50%of the time that other methods used when obtaining the same level of results.Furthermore,some considerations of the proposed strategy are further discussed and some characteristics of DSSO are identified.

基于航道发散的港口封控布雷方案生成方法

在布雷方案的制定工作中,针对人工作业方式和布雷辅助决策系统自动化水平不高、方案制定效率低、精确度不高、可靠性不强等问题,提出了一种新的布雷方案快速自动生成方法。该方法设计了一种港口口门和主航道发散模型,考虑了多种海洋环境因素和敌对反水雷威胁的影响,结合大地主题解算理论及水深插值与提取技术,能够快速地自动生成精确的港口封控布雷方案。仿真实验与结果表明,该方法生成的布雷方案符合海域的实际情况,准确性、可靠性和实用性较好。

汽车电线束熔断片自动安装设计原理与实现

主要对汽车电线束熔断片安装进行研究,尤其是针对传统装配人工操作易错且效率低下的现状,进行系统分析与调查,建议采用熔断片自动安装设备来安装。该设备包含熔断片自动上料振动盘、自动送料滑道、机械手,设有检测装置,能准确控制压装力度,提高生产效率、降低生产成本。