导弹与航天运载技术
導彈與航天運載技術
도탄여항천운재기술
MISSILES AND SPACE VEHICLES
2015年
1期
29-32,37
,共5页
液压伺服系统%热分析%节点模型
液壓伺服繫統%熱分析%節點模型
액압사복계통%열분석%절점모형
Hydraulic servo system%Thermal analysis%Nodal model
提出节点热模型分析方法，从电液伺服系统生热、传热机理出发，建立节点热物理模型，推导出节点热数学模型。在此基础上，搭建系统节点热物理模型，列写各节点热数学模型并组装成系统，并在Matlab下仿真求解。设计一套温度试验系统，得到了覆盖全系统的温度场信息。将仿真结果与试验数据对比，验证了节点热模型分析方法。旨在把握伺服系统温升机理，建立一套具有一定可行性和精确度的伺服系统热分析方法，为温控方案设计和技术创新奠定基础。
提齣節點熱模型分析方法，從電液伺服繫統生熱、傳熱機理齣髮，建立節點熱物理模型，推導齣節點熱數學模型。在此基礎上，搭建繫統節點熱物理模型，列寫各節點熱數學模型併組裝成繫統，併在Matlab下倣真求解。設計一套溫度試驗繫統，得到瞭覆蓋全繫統的溫度場信息。將倣真結果與試驗數據對比，驗證瞭節點熱模型分析方法。旨在把握伺服繫統溫升機理，建立一套具有一定可行性和精確度的伺服繫統熱分析方法，為溫控方案設計和技術創新奠定基礎。
제출절점열모형분석방법，종전액사복계통생열、전열궤리출발，건립절점열물리모형，추도출절점열수학모형。재차기출상，탑건계통절점열물리모형，렬사각절점열수학모형병조장성계통，병재Matlab하방진구해。설계일투온도시험계통，득도료복개전계통적온도장신식。장방진결과여시험수거대비，험증료절점열모형분석방법。지재파악사복계통온승궤리，건립일투구유일정가행성화정학도적사복계통열분석방법，위온공방안설계화기술창신전정기출。
In order to understand the mechanism of temperature rising in servo system, laying a solid foundation for better temperature control and technical innovation of servo systems, a nodal thermal model analytical method for a Thrust Vest Control hydraulic servo system was put forward. Based on the heat generation and transfer theory, the thermal physical model was established and the thermal mathematical model was derived. The system model was established in the form of one-order differential equations, and was calculated using Matlab. Experiments were conducted to obtain the temperature field of the whole system. The simulation results were compared with experimental data, validating the nodal thermal model analytical method.
