摘要
受到高温影响,动力系统内部热量分布不均,导致振动响应分析结果不精准。考虑舰船动力系统热效应,提出多态形变同步耦合模型振动响应研究。假设动力系统生热在系统内均匀分布,计算经过化学反应生成的能量,得到总产热量,由此构建动力系统热效应多态形变同步耦合模型,确定动力系统内部沿法向、径向热导率。构建多态形变同步耦合振动动力学分析模型,根据动能等效原则,建立传动轴上齿轮弯扭耦合振动数学方程式,得到振动响应规律。设置温度场,分析系统模态,进行仿真实验。结果表明,在高温环境情况下,动力系统振动量明显比在室温环境下振动量大。
Due to high temperature,the uneven heat distribution in the power system leads to inaccurate vibration response analysis results.Considering the thermal effect of the ship’s power system,a study on the vibration response of a multi-state deformation synchronous coupling model is proposed.Assuming that the heat generation of the power system is evenly distributed in the system,the energy generated by the chemical reaction is calculated to obtain the total heat production,thereby constructing a synchronous coupling model of the thermal system multi-effect deformation and determining the normal and radial thermal conductivity of the power system.The dynamic analysis model of synchronous coupling vibration of multi-state deformation is constructed.According to the principle of kinetic energy equivalence,the mathematical equation of coupled bending and torsional vibration of gears on the transmission shaft is established to obtain the vibration response law.Set the temperature field,analyze the system modalities,and then carry out simulation experiments and conclude that under high-temperature environment,the vibration of the power system is significantly larger than room temperature,which shows that the power system can work stably.
作者
胡海东
刁金霞
杨利坡
HU Hai-dong;DIAO Jin-xia;YANG Li-po(Langfang Polytechnic Institute,Langfang 065000,China;National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China)
出处
《舰船科学技术》
北大核心
2020年第18期109-111,183,共4页
Ship Science and Technology
基金
河北省自然科学基金资助项目(E2015203103)
关键词
动力系统
热效应
多态形变同步
耦合模型
振动响应
ship power system
thermal effect
polymorphic deformation synchronization
coupled model
vibration response
