Dynamics of Novel Air-Assisted Marine Vehicles

新型空气辅助船舶动力学

• 批准号: 1026264
• 负责人: Konstantin Matveev
• 金额: $ 25.87万
• 依托单位: Washington State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-10-01 至 2014-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1026264&HistoricalAwards=false
• 关键词: Dynamics; Novel; Air; Assisted; Marine

This project will investigate the dynamics of novel air-assisted marine vehicles that include energy-efficient air-cavity hulls and fast amphibious platforms. The dynamics of these vehicles is very complex due to unsteady phenomena in compliant air zones between hulls and water and high-speed body motions near the air-sea interface. The main research goals are to derive and investigate dynamical systems for vehicle motions and to establish methods for determining static and dynamic stability, motions in waves and transient regimes, and effective control approaches. The scope of this work include derivation of mathematical models for vehicle dynamics, determination of forces with help of simplified modeling, detailed computational simulations, and experiments, and validation of theoretical findings on scaled experimental models of air-assisted marine vehicles.This research will provide understanding on how to design and control novel sea-going air-assisted marine vehicles with exceptional efficiency and speed characteristics. Cargo ships will benefit from air cavity systems that can decrease drag by up to 30 percent. Reductions in underwater noise and wake wash will be additional environmentally friendly by-products. Ultra-fast heavy-lift amphibious craft with speeds well above 100 mph will provide efficient transportation means for Arctic regions and for rescue and security operations in oceans and on islands. Obtained research results will be broadly disseminated and integrated into existing and new courses and summer schools. Demonstrator models of advanced marine vehicles will provide an effective means to recruit students to careers in engineering.

该项目将研究新型空气辅助船舶的动力学，包括节能空腔船体和快速两栖平台。由于船体与水之间的柔顺气区不稳定现象和靠近海气界面的高速身体运动，这些车辆的动力学非常复杂。主要的研究目标是推导和研究车辆运动的动力系统，建立确定静态和动态稳定性的方法，波浪和瞬态运动，以及有效的控制方法。这项工作的范围包括推导车辆动力学的数学模型，在简化建模的帮助下确定力，详细的计算模拟和实验，以及在空气辅助船舶的比例实验模型上验证理论发现。本研究将为如何设计和控制具有卓越效率和速度特性的新型海上气助船舶提供理解。货船将受益于空腔系统，该系统可以减少高达30%的阻力。减少水下噪音和尾流将是额外的环保副产品。速度超过100英里/小时的超高速重型两栖船将为北极地区以及海洋和岛屿上的救援和安全行动提供高效的运输手段。获得的研究成果将广泛传播，并纳入现有和新的课程和暑期学校。先进船舶的示范模型将为招收学生从事工程职业提供有效的手段。