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首页> 外文会议>ASME(American Society of Mechanical Engineers)/JSME Pressure Vessels and Piping Conference: Seismic Engineering v.2; 20040725-20040729; San Diego,CA; US >Fundamental study of Active Mass Damper for improving livability of houses against traffic vibration - Substantiation Test-
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Fundamental study of Active Mass Damper for improving livability of houses against traffic vibration - Substantiation Test-

机译：主动减震器用于改善房屋抗交通振动能力的基础研究-实证测试-

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摘要

In Japan, there are many houses built in limited space as well as in close proximity to causeways and railroads, due mainly to concentration of population in the cities in recent years. Slender structures and especially 3-story houses are susceptible to vibration induced by external forces such as traffic. This effect often creates an uncomfortable environment for habitation. Because houses often have a complex geometry, it is difficult to establish the vibration characteristics of a structure. Furthermore, the response characteristics of a house will change with environmental conditions. A prototype Active Mass Damper (AMD) has been developed to address some of these issues. This has been tested in an exhibition house in Tokyo. It uses two AMD's of 1,725N mass each for both X-axis and Y-axis. Both AMD's are applied in X and Y directions and are installed at RooF level, they are controlled by Direct Displacement Feedback (DDFB). The test showed that the AMD could dramatically reduce vibration. Of particular note was reduction about 6dB to 8dB (L_(10)) in the first mode of vibration even though the house mass is double the prototype target weight. Also, vibration was dramatically decreased by the AMD on 3rd floor of the house. Vibration level and comfort are important criteria for this kind of system.
机译：在日本，由于近几年城市人口的集中，许多房屋都在有限的空间内以及靠近堤道和铁路的地方建造。细长的结构，尤其是三层楼的房屋，容易受到交通等外力引起的振动的影响。这种效果通常会为居住环境带来不舒适感。由于房屋通常具有复杂的几何形状，因此很难确定结构的振动特性。此外，房屋的响应特性将随环境条件而变化。已经开发出原型主动质量阻尼器（AMD）来解决其中的一些问题。这已经在东京的一家展览馆进行了测试。它在X轴和Y轴上分别使用两个质量为1,725N的AMD。两种AMD都在X和Y方向上应用，并以RooF级别安装，它们由直接位移反馈（DDFB）控制。测试表明，AMD可以大大降低振动。特别值得注意的是，即使房屋的质量是原型目标重量的两倍，在第一种振动模式下也可减少约6dB至8dB（L_（10））。另外，房屋三楼的AMD大大降低了振动。振动水平和舒适度是此类系统的重要标准。

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