The results show that in traditional aging temperature, the stress relaxation curve of 7050 aluminum alloys exhibits a classical logarithmic decrement curve.
结果表明：时效温度范围内7050铝合金的应力松弛曲线表现为典型的对数衰减曲线。
The logarithmic decrement of the cable is then calculated from the free decay curve of the displacement data.
通过人工激振拉索后，测得拉索的振动波腹点位移衰减时程曲线，计算得拉索的对数衰减率值。
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