在不同的发动机轮下使用双动态振动吸收器减轻机动艇发动机手臂振动的振动激发
Nabil Mohamad Usamah1, Mohamad Syazwan Md Isa1, Ahmad Zhafran Ahmad Mazlan1
1School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang, Malaysia.
概括
这项研究使用双动态振动吸收器 (DVA) 来降低机动艇手柄的振动. 在DVAs显著减少振动暴露,降低手臂振动综合征 (HAVS) 的风险操作人员.
科学领域:
- 工程 工程师 工程师 工程师
- 职业健康 职业健康 职业健康
- 人体工程学就是人体工程学.
背景情况:
- 小型机动艇的发动机把手向操作员传递高振动水平.
- 这种暴露对发展手臂振动综合征 (HAVS) 构成重大风险.
研究的目的:
- 为了研究机动艇发动机把手中的振动传导性.
- 应用双动态振动吸收器 (DVA) 来减少在关键频率的振动.
- 评估DVA在减轻HAVS风险方面的有效性.
主要方法:
- 一个实验室规模的装置模拟了机动船发动机在不同速度和轮条件下运行.
- 双动态振动吸收器 (DVA) 应用于发动机手柄.
- 用和没有DVA测量了振动水平和传播能力.
- 分析包括基于ISO 5349-1的权重.
主要成果:
- 没有DVA,高振动发生在45-50 Hz (速度1) 和95-100 Hz (速度2) 时.
- DVA改变了手柄的自然频率,使振动减少了42.08% (速度1) 和53.56% (速度2).
- 传导能力 (Ts < 1) 显著下降,表明对操作人员手部的振动传输减少.
结论:
- DVA有效地减少了从小型机动艇发动机传输到操作员手柄的振动.
- 应用DVA大大降低了振动风险,有助于预防手臂振动综合征 (HAVS).
- 这项技术为改善机动艇环境中的操作员安全提供了实际解决方案.
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