Naval Engineers Journal最新文献_第9页

Optimal Feedback Control of Power Systems Using Eigenstructure Assignment and Particle Swarm Optimization 基于特征结构分配和粒子群优化的电力系统最优反馈控制

IF 0.2 4区工程技术

Naval Engineers Journal

Pub Date : 2011-04-26 DOI: 10.1111/j.1559-3584.2010.00300.x

FRANK FERRESE, QING DONG, NAT NATARAJ, SAROJ BISWAS

The US Navy has a continuing interest and investment in basic and applied research in the area of automation and control. The potential naval applications for this research are numerous and wide ranging. The need for advances in control and automation systems exists from missile defense, to shipboard auxiliary systems, to naval aircraft, and virtually everywhere in between. This research is performed in industry, academia, and in naval laboratories across the nation. This paper will detail particular research in control theory being performed in the area of automation and controls in the naval laboratories. A particle swarm optimization algorithm is used to manipulate the state and control weighting matrices of a linear quadratic regulator to achieve an optimal control for a desired eigenstructure. The algorithm is demonstrated on a nonlinear power system model, and is found to be highly effective in the stabilization of the system output performance, showing both rapid convergence and a closed loop eigenstructure very close to the specified eigenstructure.

美国海军一直对自动化和控制领域的基础和应用研究感兴趣并进行投资。这项研究的潜在海军应用范围广泛。对控制和自动化系统进步的需求存在，从导弹防御到船上辅助系统，再到海军飞机，几乎无处不在。这项研究在全国各地的工业界、学术界和海军实验室进行。本文将详细介绍在海军实验室自动化和控制领域进行的控制理论研究。粒子群优化算法用于操纵线性二次调节器的状态和控制加权矩阵，以实现对所需本征结构的最优控制。该算法在非线性电力系统模型上进行了验证，发现该算法在稳定系统输出性能方面非常有效，表现出快速收敛和闭环本征结构非常接近指定的本征结构。

{"title":"Optimal Feedback Control of Power Systems Using Eigenstructure Assignment and Particle Swarm Optimization","authors":"FRANK FERRESE, QING DONG, NAT NATARAJ, SAROJ BISWAS","doi":"10.1111/j.1559-3584.2010.00300.x","DOIUrl":"https://doi.org/10.1111/j.1559-3584.2010.00300.x","url":null,"abstract":"<p>The US Navy has a continuing interest and investment in basic and applied research in the area of automation and control. The potential naval applications for this research are numerous and wide ranging. The need for advances in control and automation systems exists from missile defense, to shipboard auxiliary systems, to naval aircraft, and virtually everywhere in between. This research is performed in industry, academia, and in naval laboratories across the nation. This paper will detail particular research in control theory being performed in the area of automation and controls in the naval laboratories. A particle swarm optimization algorithm is used to manipulate the state and control weighting matrices of a linear quadratic regulator to achieve an optimal control for a desired eigenstructure. The algorithm is demonstrated on a nonlinear power system model, and is found to be highly effective in the stabilization of the system output performance, showing both rapid convergence and a closed loop eigenstructure very close to the specified eigenstructure.</p>","PeriodicalId":49775,"journal":{"name":"Naval Engineers Journal","volume":"123 1","pages":"67-75"},"PeriodicalIF":0.2,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1559-3584.2010.00300.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72328008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

ASNE SECTION NEWS ASNE版块新闻

IF 0.2 4区工程技术

Naval Engineers Journal

Pub Date : 2011-04-26 DOI: 10.1111/j.1559-3584.2011.00311.x

引用次数: 0

Roll Stabilization with Short Wings 短翼侧倾稳定

IF 0.2 4区工程技术

Naval Engineers Journal

Pub Date : 2011-04-26 DOI: 10.1111/j.1559-3584.2010.00298.x

Zelik Segal, Alexander Segal

The paper presents the description and results of model experiments carried out, at zero forward speed, for determining the roll-damping qualities of continuous bilge keels and of short wings, installed in a staggered row along the ship. The damping qualities of the short wings roll stabilizer (SWIRS) were investigated also at forward motion of the ship, using additional experimental data and the more exact calculation method of the SWIRS effectiveness. The presented experimental results and the performed analysis of roll stabilizers can be useful in further investigations and design of new vessels.

本文介绍了在零前进速度下进行的模型实验的描述和结果，该实验用于确定沿船交错排列的连续舱底龙骨和短翼的侧倾阻尼特性。利用附加的实验数据和更精确的SWIRS有效性计算方法，研究了短翼减摇器在船舶前进运动时的阻尼特性。所提供的实验结果和对侧倾稳定器进行的分析可用于进一步研究和设计新型船只。

引用次数: 4

Coast Guard Reliability-Centered Maintenance 海岸警卫队以可靠性为中心的维护

IF 0.2 4区工程技术

Naval Engineers Journal

Pub Date : 2011-04-26 DOI: 10.1111/j.1559-3584.2010.00294.x

ERIC M. LINTON

Since 2001, the Coast Guard's surface fleet has had a condition-based maintenance (CBM) policy. The reliability-centered maintenance (RCM) process is used to implement the policy by identifying minimum system maintenance requirements. The Coast Guard's RCM program provides the standards and capabilities needed to develop preventive maintenance systems that satisfy operational requirements. RCM requirements are based on the industry standard SAE JA-1011, which provides evaluation criteria for RCM processes. Department of Defense (DoD) data-deliverable specifications, training programs, continuous improvement functions, information system requirements, and condition assessment programs complete the Coast Guard's RCM program. This paper discusses the genesis of the Coast Guard surface fleet's RCM program, how it is managed, and the benefits that it provides.

自2001年以来，海岸警卫队的水面舰队一直实行基于状态的维护（CBM）政策。以可靠性为中心的维护（RCM）过程用于通过确定最低系统维护要求来实施该政策。海岸警卫队的RCM计划提供了开发满足作战要求的预防性维护系统所需的标准和能力。RCM要求基于行业标准SAE JA-1011，该标准为RCM过程提供了评估标准。国防部（DoD）的数据交付规范、培训计划、持续改进功能、信息系统要求和状态评估计划完成了海岸警卫队的RCM计划。本文讨论了海岸警卫队水面舰队RCM计划的起源、管理方式及其带来的好处。

引用次数: 1

ELECTRICAL ENGINEERS URGED TO SUPPORT EFFORT TO UPDATE ELECTRIC SHIP STANDARDS 敦促电气工程师支持更新电动船舶标准的努力

IF 0.2 4区工程技术

Naval Engineers Journal

Pub Date : 2011-04-26 DOI: 10.1111/j.1559-3584.2011.00315.x

EDWARD LUNDQUIST

引用次数: 0

Optimal Feedback Control of Power Systems Using Eigenstructure Assignment and Particle Swarm Optimization 基于特征结构分配和粒子群优化的电力系统最优反馈控制

IF 0.2 4区工程技术

Naval Engineers Journal

Pub Date : 2011-03-01 DOI: 10.1111/J.1559-3584.2010.00300.X

F. Ferrese, Q. Dong, N. Nataraj, S. Biswas

The US Navy has a continuing interest and investment in basic and applied research in the area of automation and control. The potential naval applications for this research are numerous and wide ranging. The need for advances in control and automation systems exists from missile defense, to shipboard auxiliary systems, to naval aircraft, and virtually everywhere in between. This research is performed in industry, academia, and in naval laboratories across the nation. This paper will detail particular research in control theory being performed in the area of automation and controls in the naval laboratories. A particle swarm optimization algorithm is used to manipulate the state and control weighting matrices of a linear quadratic regulator to achieve an optimal control for a desired eigenstructure. The algorithm is demonstrated on a nonlinear power system model, and is found to be highly effective in the stabilization of the system output performance, showing both rapid convergence and a closed loop eigenstructure very close to the specified eigenstructure.

美国海军对自动化和控制领域的基础和应用研究有着持续的兴趣和投资。这项研究的潜在海军应用是众多而广泛的。从导弹防御到舰载辅助系统，再到海军飞机，以及介于两者之间的几乎所有地方，对控制和自动化系统的进步的需求都存在。这项研究在全国各地的工业、学术界和海军实验室进行。本文将详细介绍海军实验室在自动化和控制领域进行的控制理论方面的具体研究。采用粒子群优化算法对线性二次型调节器的状态和控制权矩阵进行处理，以实现对期望特征结构的最优控制。在一个非线性电力系统模型上进行了验证，结果表明该算法对系统输出性能的稳定非常有效，收敛速度快，闭环特征结构与指定特征结构非常接近。

引用次数: 1

The Ballistic Response of Cross-Stiffened Panels from a Rocket-Propelled Grenade 火箭榴弹交叉加筋板的弹道响应

IF 0.2 4区工程技术

Naval Engineers Journal

Pub Date : 2011-03-01 DOI: 10.1111/J.1559-3584.2010.00299.X

S. Pahos

Cruise ships often transit the littoral zone of developing countries where piracy thrives. The attack against Seaborne Spirit on November 5, 2005 was countered successfully by the ship's crew but the toll could have been a lot heavier that day. Nowadays, although international forces police high-risk waters, the risk map is constantly evolving, and there have been instances where even naval vessels had to change their route in order to avoid perilous areas. In the Seaborne Spirit attack approximately 100 miles off the Somali Coast, although the crew thwarted the pirates from coming any closer to the ship, the assailants managed to launch a rocket-propelled grenade (RPG) that miraculously failed to explode when it hit the ship's side. This paper carried out the analysis of blast and impact in a fluid–structure interaction model with LS-DYNA solver. The aim of the present paper is to investigate the ballistic response of cross-stiffened panels, commonly used in ship and offshore structures, from the impact with an RPG warhead. It was found that although an RPG alone cannot threaten a highly redundant structure as a ship or an offshore platform, the developed jet from the shaped charge is certainly threatening to passengers and crew.

游轮经常经过海盗猖獗的发展中国家的沿海地区。2005年11月5日对“海魂号”的攻击被舰上的船员成功地反击了，但那天的损失可能要大得多。如今，虽然国际部队在高风险水域巡逻，但风险地图不断变化，甚至海军舰艇也不得不改变路线以避开危险地区。在离索马里海岸大约100英里的海上幽灵号袭击中，尽管船员们阻止了海盗靠近船只，但攻击者成功发射了一枚火箭推进榴弹(RPG)，当它击中船侧时，奇迹般地没有爆炸。本文利用LS-DYNA求解器对流固耦合模型中的爆炸和冲击进行了分析。本文的目的是研究通常用于船舶和近海结构的交叉加筋板在RPG弹头冲击下的弹道响应。研究发现，虽然RPG本身不能威胁到舰船或海上平台等高度冗余的结构，但聚能装药的射流肯定会威胁到乘客和机组人员。

{"title":"The Ballistic Response of Cross-Stiffened Panels from a Rocket-Propelled Grenade","authors":"S. Pahos","doi":"10.1111/J.1559-3584.2010.00299.X","DOIUrl":"https://doi.org/10.1111/J.1559-3584.2010.00299.X","url":null,"abstract":"Cruise ships often transit the littoral zone of developing countries where piracy thrives. The attack against Seaborne Spirit on November 5, 2005 was countered successfully by the ship's crew but the toll could have been a lot heavier that day. Nowadays, although international forces police high-risk waters, the risk map is constantly evolving, and there have been instances where even naval vessels had to change their route in order to avoid perilous areas. In the Seaborne Spirit attack approximately 100 miles off the Somali Coast, although the crew thwarted the pirates from coming any closer to the ship, the assailants managed to launch a rocket-propelled grenade (RPG) that miraculously failed to explode when it hit the ship's side. This paper carried out the analysis of blast and impact in a fluid–structure interaction model with LS-DYNA solver. The aim of the present paper is to investigate the ballistic response of cross-stiffened panels, commonly used in ship and offshore structures, from the impact with an RPG warhead. It was found that although an RPG alone cannot threaten a highly redundant structure as a ship or an offshore platform, the developed jet from the shaped charge is certainly threatening to passengers and crew.","PeriodicalId":49775,"journal":{"name":"Naval Engineers Journal","volume":"15 1","pages":"55-65"},"PeriodicalIF":0.2,"publicationDate":"2011-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88451351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Only a Multipronged Strategy Can Advance the Function Life Cycle Logistics 只有多管齐下才能推进功能生命周期物流

IF 0.2 4区工程技术

Naval Engineers Journal

Pub Date : 2011-03-01 DOI: 10.1111/J.1559-3584.2010.00295.X

Charles Borsch

The Life Cycle Logistics career field is by definition not a professional one. Department of Navy Life Cycle Logisticians must nevertheless operate to high degrees of professionalism in order to successfully plan, resource, and execute sustainment programs for defense systems that are effective and maximally affordable for the Fleet to own and operate. The multifaceted solutions to the challenge of advancing both the functions of logistics and its career workforce, in lieu of professional certification, is the subject of this paper.

从定义上讲，生命周期物流职业领域并不是一个专业领域。然而，海军生命周期后勤人员必须以高度的专业精神运作，以便成功地为舰队拥有和运营的有效且最大限度负担得起的防御系统规划、资源和执行维持计划。本文的主题是为推进物流功能及其职业劳动力的挑战提供多方面的解决方案，而不是专业认证。

引用次数: 1

Coast Guard Reliability‐Centered Maintenance 海岸警卫队以可靠性为中心的维护

IF 0.2 4区工程技术

Naval Engineers Journal

Pub Date : 2011-03-01 DOI: 10.1111/J.1559-3584.2010.00294.X

Eric M. Linton

Since 2001, the Coast Guard's surface fleet has had a condition-based maintenance (CBM) policy. The reliability-centered maintenance (RCM) process is used to implement the policy by identifying minimum system maintenance requirements. The Coast Guard's RCM program provides the standards and capabilities needed to develop preventive maintenance systems that satisfy operational requirements. RCM requirements are based on the industry standard SAE JA-1011, which provides evaluation criteria for RCM processes. Department of Defense (DoD) data-deliverable specifications, training programs, continuous improvement functions, information system requirements, and condition assessment programs complete the Coast Guard's RCM program. This paper discusses the genesis of the Coast Guard surface fleet's RCM program, how it is managed, and the benefits that it provides.

自2001年以来，海岸警卫队的水面舰队一直有一项基于状态的维护(CBM)政策。以可靠性为中心的维护(RCM)流程通过识别最小的系统维护需求来实现策略。海岸警卫队的RCM项目提供了开发满足作战要求的预防性维护系统所需的标准和能力。RCM要求基于行业标准SAE JA-1011，该标准为RCM过程提供了评估标准。国防部(DoD)的数据交付规范、培训计划、持续改进功能、信息系统需求和状态评估计划完成了海岸警卫队的RCM计划。本文讨论了海岸警卫队水面舰队RCM计划的起源，如何管理它，以及它提供的好处。

引用次数: 1

“CAPS: THE ONLY FACILITY OF ITS KIND IN THE WORLD” "盖帽:世界上唯一的同类设施"

IF 0.2 4区工程技术

Naval Engineers Journal

Pub Date : 2011-03-01 DOI: 10.1111/J.1559-3584.2011.00312.X

E. Lundquist

引用次数: 0