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在构建激光陀螺捷联系统时,由于三个激光陀螺安装在同一个支架上,并且三个陀螺振子都在进行高频角振动,激励支架产生耦合振动,外界的干扰振动也会通过隔振器传到支架上,因此造成陀螺是在振动载体环境下工作,引起激光捷联系统的振动耦合误差,导致系统导航精度下降。采用MSC.NASTRAN有限元软件,分析了某激光陀螺系统的动力学特性和振动模态,确定了三个激光陀螺的合理安装位置。计算了隔振器的隔振效果,并分析了外界扰动对激光陀螺的影响。由此评估激光陀螺系统的动力学特性,得出其中存在的弱点,为激光陀螺系统结构的动力学特性修改提供依据。 相似文献
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本文以稳象系统中的陀螺仪主轴振动为对象,对直接陀螺稳定系统的失稳进行了分析,对陀螺仪章动现象的原因给出了结论,并给出了振动控制方法。 相似文献
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电力储存用飞轮系统的控制模型研究 总被引:1,自引:0,他引:1
对用于电力储存的10MWh级飞轮系统的控制模型进行了研究,主要介绍了对大容量飞轮储能系统的构造设计、振动分析、没有考虑陀螺效应的有限元模型、考虑陀螺效应的有限元模型以及考虑陀螺效应的弹性支持的回转轴模型。 相似文献
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对用于电力储存的 10MWh级飞轮系统的控制模型进行了研究 ,主要介绍了对大容量飞轮储能系统的构造设计、振动分析、没有考虑系统陀螺效应的有限元模型、考虑陀螺效应的有限元模型以及考虑陀螺效应的弹性支持的回转轴模型 相似文献
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为了实时、准确地对液压系统的故障进行诊断,开发了一套基于神经网络理论的液压系统故障诊断系统,利用PC机强大的数据处理能力对采集的数据进行实时处理并直观地显示处理结果,极大地提高了诊断速度和准确度。将此系统应用于某型车辆液压系统的故障诊断,达到了比一般故障诊断系统更好的准确度和更快的速度。 相似文献
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Yong-Hwan Bae Seok-Hee Lee Ho-Chan Kim Byung-Ryong Lee Jaejin Jang Jay Lee 《The International Journal of Advanced Manufacturing Technology》2006,29(5-6):590-597
Modern manufacturing systems and their failure modes are very complex, and efficient fault diagnosis is essential for higher
productivity. However, traditional fault diagnostic systems that perform sequential fault diagnosis can fail during diagnosis
when fault propagation is very fast. This paper describes a real-time intelligent multiple fault diagnostic system (RIMFDS).
This system deals with multiple fault diagnosis, and is based on multiprocessing by using a strata hierarchical artificial
neural network (SHANN). If another fault occurs while an existing symptom is being diagnosed, the corresponding diagnosis
module is triggered, and the fault diagnosis module of the new faulty unit begins to diagnose the faults in real time. RIMFDS
can diagnose multiple faults with fast fault propagation and complex physical phenomena. The system consists of two main parts.
One is a personal computer for remote signal generation and transmission, and the other is a host system for multiple fault
diagnosis. The signal generator generates various faulty signals and image information and sends them to the host. The host
has various modules and agents for efficient multiple fault diagnosis. A SUN workstation is used as a host for multiple fault
diagnosis and graphic representation of the results. 相似文献
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A real-time intelligent multiple fault diagnostic system 总被引:3,自引:0,他引:3
Yong-Hwan Bae Seok-Hee Lee Ho-Chan Kim Byung-Ryong Lee Jaejin Jang Jay Lee 《The International Journal of Advanced Manufacturing Technology》2006,29(5):590-597
Modern manufacturing systems and their failure modes are very complex, and efficient fault diagnosis is essential for higher
productivity. However, traditional fault diagnostic systems that perform sequential fault diagnosis can fail during diagnosis
when fault propagation is very fast. This paper describes a real-time intelligent multiple fault diagnostic system (RIMFDS).
This system deals with multiple fault diagnosis, and is based on multiprocessing by using a strata hierarchical artificial
neural network (SHANN). If another fault occurs while an existing symptom is being diagnosed, the corresponding diagnosis
module is triggered, and the fault diagnosis module of the new faulty unit begins to diagnose the faults in real time. RIMFDS
can diagnose multiple faults with fast fault propagation and complex physical phenomena. The system consists of two main parts.
One is a personal computer for remote signal generation and transmission, and the other is a host system for multiple fault
diagnosis. The signal generator generates various faulty signals and image information and sends them to the host. The host
has various modules and agents for efficient multiple fault diagnosis. A SUN workstation is used as a host for multiple fault
diagnosis and graphic representation of the results. 相似文献
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