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中文摘要：
针对齿轮箱较为复杂的振动与噪声特性,提出一种粘滞阻尼器用于控制齿轮轴系的振动。搭建了粘滞阻尼器—齿轮箱实验台,对粘滞阻尼器单独作用于输出轴、输入轴及两阻尼器同时作用于输入轴、输出轴下的减振特性进行试验研究。试验结果表明,该粘滞阻尼器能同时有效抑制齿轮轴系振动的各频率成分,减振频带宽;当阻尼器单独安装时,无论阻尼器作用于哪根齿轮轴,对于整个啮合齿轮副产生的冲击振动均有明显的减振特性;两个阻尼器作用于两根齿轮轴的减振效果要好于单个阻尼器作用某根齿轮轴。试验了不同转速下的减振特性,验证该阻尼器能有效保证齿轮传动系统在较宽的变速范围内平稳运行。
英文摘要：
A viscous damper for suppressing the complex vibration and noise of a gearbox is proposed. The proposed control concept employs a viscous damper to deliver the gearbox vibration through a secondary bearing, so as to achieve vibration reduction. A viscous damper-gearbox bench was built to experimentally evaluate the damping characteristics for the cases of a viscous damper mounted alone on the output shaft, a viscous damper mounted alone on the input shaft and two dampers mounted separately on the output shaft and input shaft. The experimental results show that the viscous damper can simultaneously inhibit each frequency component of the gear shaft mesh shock vibration over a wide frequency range, giving a reduction of up to 45%. Significant vibration reduction was obtained when the viscous damper was mounted alone on the either the input shaft or the output shaft. The damping effect obtained by using two dampers acting on the two gear shafts is better than when using a single damper on one gear shaft. The experiments verify that the damper can effectively guarantee the smooth operation of the gear transmission with good vibration reduction characteristics over a range of operating speeds.
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