| 1. | The adoption of ship lift is also a very effective mean for high dam 升船机也是解决高坝通航一种非常有效的手段。 |
| 2. | The characteristics of " water saving " of ship lift determines its status in channel development and construction of middle & western areas of china 升船机的省水特点决定了它在我国中西部地区航道开发建设中的地位。 |
| 3. | This paper investigates the adaptable condition of ship lift , and describes its function on optimizing channel network and improving navigation efficiency 摘要探讨升船机适用条件,提出升船机在优化航道网、提高航道通航效率中的作用。 |
| 4. | Industrial ethernet network of the computer monitoring and control system for ship lift of gaobazhou water control project is made up of a and b double redundancy ring optical fiber networks with better reliability and flexibility 摘要高坝洲升船机计算机监控系统工业以太网由a 、 b双冗余环形光纤网络组成,具有较高的通信可靠性和灵活性。 |
| 5. | Based on the dynamic analysis of the three - dimensions finite element model of three - gorges ship lift structure , the equivalent reduced mechanical model is established . the comparisons beween the dynamic characteristics and seismic response of these two models demonstrate that the reduced mechanical model can be used in the research on the seismic whipping effect control in the top machinery building of the ship lift structure 本文基于三维有限元模型的动力分析建立了等效的简化力学模型。两种模型的动力特性和地震反应表明,升船机顶部厂房地震鞭梢效应的磁流变智能自适应减震控制可以采用本文建立的简化力学模型模型。 |
| 6. | Through applying above theories and methods , safety monitoring model of temporary shiplock and ship lift dam sections in three - gorge project is studied . varying rule of dam displacement during construction period is analyzed by viscoelastic finite element , and safety monitoring model of dam displacement and stress during construction period is founded . rationality and validity of the model is validated ( 4 )应用前述的理论和方法,对三峡工程临时船闸坝段、升船机坝段的施工期安全监控模型进行了研究;对施工期坝体位移变化规律进行了粘弹性有限元分析,同时建立了大坝施工期位移和应力的安全监控模型,据此对模型的合理性和有效性进行了验证。 |
| 7. | Three - gorges ship lift structure is one of important navigation facilities in the three - gorges projects . as far as its scale for navigation , its lifted weight and height are concerned , the ship lift structure is the greatest one in the world . in this paper taking the ship lift structure as background , the principle of mr adaptive reduced vibration control system is proposed to solve the problem of seismic whipping effect of the top machinery building of ship lift structure 三峡大坝升船机是三峡水利枢纽工程中重要的通航设施之一。就其通航规模、提升重量及高度而言,均属国内外已建、在建升船机之首位。本文以该大型升船机为工程背景,对升船机顶部厂房地震鞭梢效应问题提出了磁流变智能自适应减震控制的原理、设计方法和效果分析。 |
| 8. | Generally ship lift structure is consisted of two or four huge reinforced concrete tube towers and a single - story machinery building on the top of tube towers . because the tube towers is demanded to support the large loads , the lateral stiffness of tube towers is a few hundred times as solid as that of the top machinery building and cause the sudden change of the stiffness . this change would cause insentive seismic whipping effect of the top building . the aseismic methods are difficultly used to reduce seismic responses of the top building of ship lift structure . the feasibility of develop an intelligent vibration control system is explored in the paper 这样,在塔柱顶部钢筋混凝土平台就会产生侧移刚度的突变。这种巨大的刚度突变会引起升船机顶部厂房强烈的地震鞭梢效应,使得升船机顶部厂房地震反应的控制就成为升船结构抗震设计中的关键问题之一。由于采用常规的结构振动控制方法难以较好地解决升船机顶部厂房地震鞭梢效应,因此这就为智能振动控制技术的发展和应用提供了可能。 |
| 9. | The concept of the roof mr intelligent isolation system is presented in this paper , and this control system to the ship lift structure is applied to reduce the seismic whipping effect in the top machinery building . a modified bingham model is proposed to simulate the mechanical model of a controlled ship lift structure with roof mr isolation systems is established . consequently , the dynamic equation of the controlled structure system is obtained 本文提出了屋盖mr智能隔震系统的概念,并将该控制系统运用于对升船机顶部厂房地震鞭梢效应的智能控制。提出了mr阻尼器修正的bingham模型。通过实验分析了mr阻尼器的力学性能。 |