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相继增压柴油机切换延迟时间的试验分析 被引量:2
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作者 高敬博 王彬彬 +2 位作者 夏清梁 高占斌 范金宇 《广州航海学院学报》 2019年第4期1-4,共4页
基于改善TBD234V6型柴油机在相继增压系统切换过程中的瞬间性能,根据经济性最优原则选择柴油机运行的最佳工况点;为了使柴油机在切换过程中更加平稳,避免出现喘振和倒灌现象,选择在最佳切换工况点对增压器切换延迟时间进行研究.研究结... 基于改善TBD234V6型柴油机在相继增压系统切换过程中的瞬间性能,根据经济性最优原则选择柴油机运行的最佳工况点;为了使柴油机在切换过程中更加平稳,避免出现喘振和倒灌现象,选择在最佳切换工况点对增压器切换延迟时间进行研究.研究结果表明:柴油机的最佳切换工况点在40%负荷,转速1112转/分;受控增压器切入最佳延迟切换时间为1 s,切出时延迟时间为0 s最佳.此时,柴油机各项指标良好,切换相对平稳,无喘振和倒灌现象. 展开更多
关键词 柴油机 相继增压 最佳切换工况点 切换延迟时间
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一种新型射流元件的仿真和测试 被引量:1
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作者 张忠波 马武举 《计算机仿真》 CSCD 北大核心 2016年第3期76-79,共4页
射流元件是一种重要的制导火箭弹姿态控制器件。射流力切换延迟时间对制导火箭弹的控制精度十分关键,但目前尚无法测量。为了获得精确的射流力切换延迟时间,设计了一种新的实时测试方法,采用霍尔传感器检测摇臂的位置来测试射流力的切... 射流元件是一种重要的制导火箭弹姿态控制器件。射流力切换延迟时间对制导火箭弹的控制精度十分关键,但目前尚无法测量。为了获得精确的射流力切换延迟时间,设计了一种新的实时测试方法,采用霍尔传感器检测摇臂的位置来测试射流力的切换时间并进行了建模仿真,摇臂位置变化与射流力切换一致。实验结果与仿真数据相符。射流力切换延迟时间测试方法,有助于提高射流元件控制精度,能够显著提高弹道修正火箭的射击密集度。 展开更多
关键词 射流元件 切换延迟时间 仿真与测试
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H_∞ Control Based on LMIs for a Class of Time-delay Switched Systems 被引量:2
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作者 李春明 田学民 《Journal of Measurement Science and Instrumentation》 CAS 2010年第3期293-296,共4页
The problem of H∞ stability analysis and control synthesis of switched systems with delayed states under arb/trary switchirg laws is considered. By means of Lyapunov function and linear matrix inequality tools, suffi... The problem of H∞ stability analysis and control synthesis of switched systems with delayed states under arb/trary switchirg laws is considered. By means of Lyapunov function and linear matrix inequality tools, sufficient ctmdition of H∞ stability is presented in terms of linear matrix inequalities. Furthermore, the robust H∞ control synthesis via state feedback and output feedack is studied. Finally, a numerical example is given to demonstrate the effectiveness of the proposed method. 展开更多
关键词 time-delay switched systems H∞ perfomance Lyapunov function linear matrix inequality
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Exponential stability of memristor-based synchronous switching neural networks with time delays
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作者 Yinlu Jiang Chuandong Li 《International Journal of Biomathematics》 2016年第1期301-318,共18页
In this paper, we study the existence, uniqueness and stability of memristor-based syn- chronous switching neural networks with time delays. Several criteria of exponential stability are given by introducing multiple ... In this paper, we study the existence, uniqueness and stability of memristor-based syn- chronous switching neural networks with time delays. Several criteria of exponential stability are given by introducing multiple Lyapunov functions. In comparison with the existing publications on simplice memristive neural networks or switching neural net- works, we consider a system with a series of switchings, these switchings are assumed to be synchronous with memristive switching mechanism. Moreover, the proposed stability conditions are straightforward and convenient and can reflect the impact of time delay on the stability. Two examples are also presented to illustrate the effectiveness of the theoretical results. 展开更多
关键词 Memristor-based synchronous switching neural networks exponential stabi-lity time delays Lyapunov functions.
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