日志
vibration frequency data
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To isolate vibrations, engineers must first identify their sources,
including machinery that may not even be in the same room. In
addition, environmental vibrations, such as seismic activity or from a
nearby highway, create low-frequency disturbances that are
transmitted through a building structure (usually 5 to 15 Hz). In
multilevel buildings, the structure itself will sometimes sway at a very
low frequency (<2 Hz). Damping this motion requires a pendulum
isolation system, which will allow greater freedom in the horizontal
plane.
including machinery that may not even be in the same room. In
addition, environmental vibrations, such as seismic activity or from a
nearby highway, create low-frequency disturbances that are
transmitted through a building structure (usually 5 to 15 Hz). In
multilevel buildings, the structure itself will sometimes sway at a very
low frequency (<2 Hz). Damping this motion requires a pendulum
isolation system, which will allow greater freedom in the horizontal
plane.
半懂
偶也是,所以收藏起来.
