北极环境下低温等恶劣条件对潜艇舵杆机构机械性能提出更高要求。建立潜艇舵杆机构三维模型，并以导向拉杆构件为例，对其在-60℃～-10℃的静力学特性进行有限元分析。结果表明，最大应力值出现在拉杆头与拉杆的连接部位，舵杆存在拉断的风险。基于此，提出了一种改进方案，将低温机械性能较差材料替换为极地船用钢EH36后，在-60℃～-30℃时最大应力值平均下降11.49%，有效提高了舵杆在低温下的机械性能，为北极环境下的舰艇设计改进提供参考。
The harsh conditions such as low temperature in Arctic environment put forward higher requirements for the mechanical performance of submarine rudder stock mechanism. The three-dimensional model of submarine rudder stock mechanism is established, and the static characteristics of the guide pull rod component at –10 ~ –60℃ are analyzed by finite element method. The results show that the maximum stress appears at the connection between the pull rod head and the pull rod, and the rudder stock has the risk of breaking. Based on this, an improvement scheme is proposed. After replacing the material with poor low-temperature mechanical properties with polar marine steel EH36, the average maximum stress value decreases by 11.49% at –30 ~ –60℃, which effectively improves the mechanical properties of the rudder stock at low temperature, which can provide a reference for the improvement of ship design in Arctic environment.
2023,45(11): 176-180 收稿日期：2022-04-24
DOI：10.3404/j.issn.1672-7619.2023.11.037
分类号：E953
基金项目：“十三五”军队双重项目（3901C9）
作者简介：陈思余(1998-),男,硕士研究生,研究方向为舰船机械维修与装备保障技术
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