摘要
在进行水中兵器减振降噪的研究过程中,发现作为其重要传动部件的特种缓冲油缸是主要噪声源之一,因此特种缓冲油缸的缓冲装置设计尤为重要,而对缓冲效果的预测是缓冲设计的核心问题。由于特种缓冲油缸工作情况的特殊性,其大多数时间都处于待机状态,当间隔很长时间后启动时,缓冲腔内的液压油温度等于所处安装环境温度,一次启动和后续启动之间缓冲腔内的液压油会有较大的温差。为了保证在极端温度条件下也能满足工作要求,需对特种缓冲油缸进行温度适应性研究。文中首先建立了特种油缸运动过程的数学模型,在油液极端温度10±2℃、40±2℃,供油压力7.5±0.2 MPa条件下,利用Fluent软件进行了流场数值仿真。然后在大型温度箱中进行了温度适应性试验,分别检测了2个极端温度条件下特种缓冲油缸的全行程运动时间和振动加速度级等参数。经对比发现,试验结果与理论分析相近,符合相应指标要求,可为特种缓冲油缸的设计和减振降噪提供参考。
During the research on vibration and noise reduction of underwater weapons,it was found that the special buffer oil cylinder,as an important transmission component,is one of the main sources of noise.Therefore,the design of the buffer device for the special buffer oil cylinder is important,and the prediction of the buffer effect is the core of the buffer design.Due to the special working conditions,special buffer oil cylinders are mostly in standby mode.When a startup is started after a long interval,the hydraulic oil temperature in the buffer chamber is equal to the installation environment temperature.There will be a large temperature difference in the hydraulic oil in the buffer chamber between the first startup and subsequent startups.In order to ensure that the working requirements can be met even under extreme temperature conditions,temperature adaptability research needs to be conducted on the special buffer oil cylinders.Firstly,a mathematical model of the motion process of a special oil cylinder was established.Under extreme oil temperatures of 10±2°C and 40±2°C and oil supply pressure of 7.5±0.2 MPa,the flow field was numerically simulated using Fluent.Then,temperature adaptability tests were conducted in a large temperature box,and the full stroke motion time,vibration acceleration level,and other parameters of the special buffer oil cylinders were tested under two extreme temperature conditions.Finally,it was found through comparison that the experimental results were similar to the theoretical analysis and met the corresponding indicator requirements,which can provide a reference for the design and vibration and noise reduction of special buffer oil cylinders in the future.
作者
代绍缘
李开福
陈俊锋
段浩
DAI Shaoyuan;LI Kaifu;CHEN Junfeng;DUAN Hao(Kunming Branch of the 705 Research Institute,China State Shipbuilding Corporation Limited,Kunming 650101,China)
出处
《水下无人系统学报》
2024年第3期565-571,共7页
Journal of Unmanned Undersea Systems
关键词
水中兵器
特种缓冲油缸
温度适应性
减振降噪
underwater weapons
special buffer oil cylinder
temperature adaptability
vibration and noise reduction
