| 1. | Development and application of bridge decreasing vibration technique
桥梁减振技术的发展与应用 |
| 2. | It offers a theory gist to decrease vibration and reduce noise of gear - box
这为变速箱的减振降噪提供了理论依据。 |
| 3. | In this dissertation , a research on decreasing vibration and noise for equipment mounted on a floor was studied
本文针对诸如机器设备上楼等柔性基础的减振降噪问题进行了研究。 |
| 4. | In addition , two kinds of vibration - decreasing measures are applied on the rail lines with big vibration , and the effects of decreasing vibration are also analyzed comparatively
对振动较大的轨道沿线采用了两种不同的减振措施，并对减振效果进行分析比较。 |
| 5. | For the case , we put forward the methods for decreasing vibration at the peak speeds and study the influence of support plan for vibrational character of rotor - support system of the aeroengine
研究降低峰值转速下振动水平的方法及支承方案对发动机转子?支承系统振动特性的影响，得出了有工程参考价值的结论。 |
| 6. | Scientists and technologists of many countries have dedicated a great effort to solve this problem , many achievements were achieved , a lot of measures to decrease vibration and noise were made out . each kind of measure has certain effect to decrease vibration and noise
各国科技工作者已经对此展开了长期深入的研究,取得了很多的成果,并制定了一些减振降噪的措施,每一种措施都有一定的减振降噪效果。 |
| 7. | Stability and intensity of structure are commonly top - priority in the structure design . when a noise problem has been found in the structure , the common way to decrease vibration is adding damping or vibration isolating because of much restriction in the modification of structure
在常规的结构设计中，设计过程往往优先考虑结构的稳定性和强度及重量等因素，在试验阶段才考虑振动和噪声问题，此时，结构可改动的余地一般已经很小，通常只可能通过附加阻尼或者采用隔振手段等来实现减振降噪。 |
| 8. | The dynamic predigesting model for passive isolation of flexible base system was established , and the four - pole parameters and machinery impedance methods were adopted to analyse the system , the expression of the responsibility and power flow transmissibility was deduced . by means of the matlab programming language , the responsibility and power flow transmissibility were simulated . proposed the vibration contrl method of optimizing system parameters . the methods proposed in this dissertation , can meet the requirement of decreasing vibration and noise for flexible base , and have some practicability and reference value
对柔性基础被动隔振系统进行了力学建模简化，并采用四端参数和机械阻抗方法对其进行分析，推导出其响应比和功率流传递率的表达式，并利用matlab程序设计语言对响应比和功率流传递率进行了模拟仿真。提出了以优化系统参数为措施的振动控制方法。本文所提出的方法，能够满足柔性基础减振降噪的要求，具有一定的实用性和参考价值。 |
| 9. | For a class of series - wound active power line conditioner the design approach law of a new fuzzy integral sliding mode variable structure control is presented . this method adjusts power electronic switch in order to achieve anticipated balance volt , finally makes active power line conditioner not only possess good robustness of variable - structure control and decrease vibration to the most but also increase the steady state precision . series - wound aplc adopted this control method possesses good dynamic and steady state performance
针对串联型有源电网调节器运用变结构控制策略，调节电力电子开关模式，以获得预期的平衡电压，对串联型有源电网调节器提出了模糊积分变结构控制方法，使串联型有源电网调节器既保持了常规滑模控制强鲁棒性的优点，又减弱了滑模控制的抖振，提高了系统的稳态精度，使系统具有良好的动态和静态性能，仿真试验表明该控制策略是一种十分有效的控制方法。 |
