How does the "gap effect" contribute to performance degradation in fluid viscous dampers?
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The "gap effect" in fluid viscous dampers refers to the phenomenon where the damper cannot generate damping force at the beginning of the reverse movement of its piston, resulting in a "gap" in the hysteretic curves. This gap effect is caused by the leakage of the viscous damper . The leaked viscous damper does not provide damping force initially, leading to a decrease in the overall damping capacity of the combined viscous-steel damping system . However, despite the leakage severity, the combined system still exhibits reliable locking behavior and decent vibration mitigation effectiveness under earthquakes . The gap effect can be accurately simulated using a proposed modeling method . The gap effect can be mitigated by using gap viscous dampers that have a gap between the piston and cylinder block, allowing for the flow of viscous damping fluids to realize damping . The gap unit in viscous dampers does not have a damping effect but provides good damping on fast and large displacement loads such as seismic loads .
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1 Citations | The leaked viscous damper cannot generate damping force at the beginning of the reverse movement of its piston, resulting in a "gap" phenomenon in the hysteretic curves. This gap effect contributes to performance degradation in fluid viscous dampers. |
| The provided paper does not mention the "gap effect" or how it contributes to performance degradation in fluid viscous dampers. | |
| The provided paper does not mention the "gap effect" or its contribution to performance degradation in fluid viscous dampers. | |
| The provided paper does not mention the "gap effect" or how it contributes to performance degradation in fluid viscous dampers. | |
| The provided paper does not mention the "gap effect" or its contribution to performance degradation in fluid viscous dampers. |
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