为了合理地设计高空气球加强带热合机的加热辊,达到提高气球承载力,对加强带的热合过程进行了数值仿真。对该热合过程进行了简化,建立了热合过程的传热模型,采用ANSYS是的命令流编制了瞬态热分析的参数化程序,建立了动态热流密度表并通过移动热源的加载,实现了热合过程的数值仿真。对热合面上的温度场进行分析,得到热源功率和热合速度之间的线性关系,拟合出热合最佳位置落后于热源中心距离L与热合速度V之间的数值关系。结果表明可用来指导加强带热合机的加热部件设计,得出加热功率和结构设计应遵循的原则,为设计提供了依据。 In order to reasonably design the high-altitude balloon to strengthen the heat roller with the heat sealing machine, the balloon bearing capacity can be increased and the heat-sealing process of the reinforcement belt can be numerically simulated. The heat sealing process is simplified, the heat transfer model of the heat sealing process is established, the parameterization program of transient thermal analysis is programmed by using ANSYS command flow, the dynamic heat flux density table is established, and the heat source loading is achieved to realize the heat sealing Numerical simulation of the process. The temperature field on the heat sealing surface is analyzed to get the linear relationship between the heat source power and the heat-sealing speed, and the numerical relation between the best heat-bonding position lagging behind the heat source center L and the heat-sealing speed V is obtained. The results show that the design can be used to guide the design of heating parts with heat sealing machine, and the principle of heating power and structure design should be followed, which provides the basis for design.