两栖应急救援运载平台水动力学仿真技术研究

Hydrodynamic Simulation Technology of AmphibiousEmergency Rescue Carrier Platform

面对有着极端灾害环境、复杂地形条件及多灾种并发的大应急救援,具备涉水越野、多功能救援、水陆两栖救援能力的两栖应急救援装备至关重要。作为两栖应急救援装备的一种,水陆两栖运载平台是一种兼具陆地车辆与船舶性能的特殊车辆,能够在陆地和水下两种环境下行驶和作业,可适应各类“水-陆”复合灾害环境,被广泛应用于应急救灾。水陆两栖运载平台车体外形结构复杂,表现出复杂的水动力学特性,为实现水陆两栖运载平台水下安全稳定航行,探究水陆两栖车辆的水动力学特性对其综合作战能力的设计和优化十分重要。通过水陆两栖运载平台的水下动力学特性及其仿真技术的研究,对包括航行阻力、航行稳态,水下操控性、推进器与车体相互作用几个方面做了介绍,将不同学者的研究方法与成果进行了分析与总结,对水陆两栖车辆水动力学研究的发展趋势做出展望,为后续研究者提供一定的参考。

In the face of major emergency rescue in extreme disaster environments,complex terrain conditions and multiple disasters,it is highly critical to consider amphibious emergency rescue equipment with cross-country wading,multi-role rescue and amphibious rescue capabilities.As an amphibious emergency rescue device,the amphibious delivery platform is a special vehicle with both land and ship performance.It can drive and operate in both land and underwater environments,and can adapt to composite disaster environments with various types of“water-land”,and is widely used in emergency disaster relief.The shape and structure of the amphibious delivery platform body are complex,and complex hydrodynamic properties can be exhibited.Therefore,it is extremely essential to realize the safe and stable underwater navigation of amphibious delivery platform and to study the hydrodynamic properties of amphibious vehicles for the design and optimization of its comprehensive combat capability.The underwater dynamic characteristics and simulation technology of amphibious delivery platform were studied,including navigation resistance,navigation stability,underwater maneuverability,interaction between propeller and vehicle body were introduced.The methods and achievements of different scholars were analyzed and summarized.The methods and achievements of different scholars were analyzed and summarized,which can predict the trend of hydrodynamics research in amphibious vehicles and some references can be provided for follow-up researchers.