润滑与密封
潤滑與密封
윤활여밀봉
Lubrication Engineering
2015年
10期
108-112,133
,共6页
环保润滑油%尾轴%尾轴承%承载力
環保潤滑油%尾軸%尾軸承%承載力
배보윤활유%미축%미축승%승재력
environmentally acceptable lubricants%tail shaft%stern tube bearing%bearing capacity
针对某船舶系泊试验和航行试验期间出现的尾轴承高温现象，建立尾轴与尾轴承之间润滑的数学模型，研究尾轴转速和润滑油黏度对尾轴与尾轴承之间的油膜压力分布和承载力的影响，并分析尾轴承高温现象发生的主要原因。结果表明，采用的环保润滑油黏度过低，船舶系泊试验和航行试验期间尾轴长时间在低转速区域运行，是导致尾轴承高温现象发生的主要原因，避免尾轴在低转速区域长时间运行和提高润滑油黏度有助于减少和避免尾轴承高温现象的发生。
針對某船舶繫泊試驗和航行試驗期間齣現的尾軸承高溫現象，建立尾軸與尾軸承之間潤滑的數學模型，研究尾軸轉速和潤滑油黏度對尾軸與尾軸承之間的油膜壓力分佈和承載力的影響，併分析尾軸承高溫現象髮生的主要原因。結果錶明，採用的環保潤滑油黏度過低，船舶繫泊試驗和航行試驗期間尾軸長時間在低轉速區域運行，是導緻尾軸承高溫現象髮生的主要原因，避免尾軸在低轉速區域長時間運行和提高潤滑油黏度有助于減少和避免尾軸承高溫現象的髮生。
침대모선박계박시험화항행시험기간출현적미축승고온현상，건립미축여미축승지간윤활적수학모형，연구미축전속화윤활유점도대미축여미축승지간적유막압력분포화승재력적영향，병분석미축승고온현상발생적주요원인。결과표명，채용적배보윤활유점도과저，선박계박시험화항행시험기간미축장시간재저전속구역운행，시도치미축승고온현상발생적주요원인，피면미축재저전속구역장시간운행화제고윤활유점도유조우감소화피면미축승고온현상적발생。
Aimed at the occurrence of high temperature alarm of the stern tube bearing on board during the ship building tests in berth and voyage, the mathematical model for the lubrication mechanism between the surface of tail shaft and bear?ing was established. The effects of the rotation rate of tail shaft and kinematic viscosity of lubricants on the oil film pressure distribution between tail shaft and stern tube bearing and bearing capacity were studied, the main reasons that caused the occurrence of high temperature alarm of stern tube bearing were analyzed. The results show that the kinematic viscosity of the used environmentally acceptable lubricant is too low, and the tail shaft runs for a long period of time at low speed re?gion during the ship building tests in berth and voyage, which are the main reasons to cause the occurrence of high temper?ature alarm of stern tube bearing. The high temperature phenomena of stern tube bearing can be reduced or avoided by im?proving viscosity of lubricant and avoiding the tail shaft to run for a long period of time at low speed region.
