据说他还对紧绷的弦，管子，贝壳和满载的船的固有振动频率进行了测试。
He is also reported to have experimented with the relationship between consonance and the natural frequencies of vibration of stretched strings, pipes, shells, and filled vessels.
振动，由于疲劳与磨损将导致管子的破坏。
Excessive vibration may lead to tube failure due to fatigue or fretting-wear.
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