Abstract : from the point of theoretical analysis , this dissertation provides the coupling calculation on the hot gas temperature field and ablation in the cavity between stress release boot and insulation of solid motors . through the calculation , some law of the ablation of the stress release boot is found 文摘:从理论分析的角度出发，通过对人工脱粘层和绝热层所构成的槽缝燃气温度场与烧蚀的耦合计算，得出了人工脱粘层的烧蚀规律。
By analyzing the characteristic of the flow field in overloading srm and comparing several existing experiment techniques , a convergence - fold tube facility was developed . the flow field in chamber of srm with high acceleration was simulated . some inhibitor ablation experiments were carried out in this test facility 通过分析过载条件下流场的特点，提出并比较了现有过载地面模拟试验技术的优缺点，最终确定了收敛?折管的模拟试验方法，模拟了高过载条件下发动机燃烧室内的高浓度粒子流，利用该方法开展了高过载模拟冲刷条件下的绝热层烧蚀特性研究及绝热层抗冲刷能力的筛选试验。
The experiment results provided a basis for establishing inhibitor ablation model and thermal protection design . the work of this paper can be summarized into four parts : 1 . by analyzing the characteristic of the flow field of srm under high acceleration condition , the following phenomena were discovered : particles were deflected and concentrated in local region by overloading , which reinforced inhibitor ablation , and the particle distribution alone the wall was affected by several factors 本文的研究工作概括为以下四部分： ( 1 )通过分析固体发动机在高过载作用下的流场特点，发现流场中凝相粒子在过载作用下发生偏转，并在局部大量聚集而形成稠密的粒子流，强化了对绝热层的烧蚀；粒子在发动机壁面上的聚集分布受多种因素影响。
The plate - tube evaporator , the single back - fin evaporator and the box condenser . after analyzing the physical model and setting up the mathematical model according to the two - phase flow of adiabatic capillary tubes , it also numerically simulates and analyzes the different effects of main parameters on the capillary tube length . based on the heat transfer analysis and counting of thermal insulation layer , the cad system accomplishes the parametric design and drawings of the refrigerator body 该系统完成了对典型制冷装置的换热器部件，如板管式蒸发器、单脊翅片管式蒸发器、箱壁式冷凝器的参数化设计和绘图；分析了绝热型毛细管两相流的物理模型，并建立数学模型，对绝热型毛细管各主要参数对其长度的影响进行了数值模拟和计算分析；基于对电冰箱箱体绝热层厚度的传热分析和计算，完成了整个箱体的参数化设计和绘图工作。
In summary , this paper developed experiment techniques to simulated flow field in overloading srm . it is an effective way to study inhibitor ablation pattern under high acceleration condition . the experiment results provided basis for investigating ablation mechanism and thermal protection 通过本文的研究工作，发展了一种高过载发动机内流场模拟实验技术，为开展高过载条件下绝热层烧蚀研究提供了有效的实验手段;获得的绝热层烧蚀实验结果以及粒径分布规律，为高过载条件下绝热层机理研究奠定了基础，为高过载发动机热防护设计提供了依据。
Based on the model , a theoretical equation for designing the thermo - insulator and a design solution of the crucible assembling system has been suggested . whereby , the designing problem in the heating system of crucible components is solved , and the graphic crucible component system in practical application is designed and manufactured . 2 通过对碳化硅生长设备中石墨坩埚系统的径向组合传热问题的分析讨论，建立了系统热分析的理论模型，提出了绝热层设计的理论依据，解决了坩埚组件热系统的设计问题并设计制作了实际应用的石墨坩埚组件系统。
By observing the macrocosmic and microcosmic state of the test specimens , the ablation pattern of inhibitor was put forward and ablation mechanism was analyzed . the critical average particle diameter that influenced inhibitor ablation was obtained . the time - dependent ablation expression associated particle concentration and angle was achieved through analyzing their variation alone with the change of specimen figure ( 4 )通过对试验后绝热材料试件的表观和微观状态分析，提出了过载条件下绝热层的烧蚀模式，并分析了其烧蚀机理，获得了试验条件下影响绝热层烧蚀的平均颗粒直径。
4 . encapsulate ansys to this software by use of the ansys batch mode and ansys parametric design language ( apdl ) , and develop the interface with this software . users can transfer the kernel calculation program in the background to analysis mechanics and insulation heat transfer 对ansys进行二次开发，利用ansys程序提供的参数化设计语言( apdl )和ansys的批处理模式对ansys进行封装，编制该cad软件与ansys的接口程序，用户可以在该cad软件中从后台调用ansys核心计算程序进行金属壳体结构分析和绝热层传热分析。
The finite element method ( fe ' . i ) is adopted to analyze the effects of the numbers of coil turns , current intensity and current frequency upon the rate of joule heat generation in details . the thermo - radiation analytical countermeasures of various types are adopted to carry out the numerical analysis of the effects of the crucible with different shapes and sizes and the blind holes with different depths opened in the tops of crucibles as well as coil positions upon the thermal field distribution whereby solving the main problem of field the thermo - field design of the induction - heating sic crystal growth system . a new combination idea of the thermo - field design obtained by means of the united design of the thermo - insulator and blind holes has been presented 采用有限元分析方法对线圈匝数、电流强度、电流频率等对焦耳热产生速率的影响进行了详细的分析讨论；采用不同的热辐射分析策略，对不同坩埚形状、坩埚顶部开设不同深度的盲孔以及线圈的位置等对热场分布的影响进行了数值分析，解决了感应加热碳化硅晶体生长系统热场设计的主要问题，提出了通过绝热层与盲孔的联合设计获得所需热场设计的思路，给出了根据轴向温度梯度的波动对线圈位置实行动态调节以控制热场的理论依据。
Because the propellant grain is viscoelastic material , the liner and adiabatic layer are also viscoelastic one , the interface debond problem is actually interface crack about elastic - viscoelastic or bi - viscoelastic materials . research about this problem relates to the knowledge of viscoelastic mechanics and interface fracture and combustion . numerical analysis method about interface debond on solid rocket motor is researched in this paper 由于固体火箭发动机的推进剂药柱是一种粘弹性材料,衬层和绝热层也具有粘弹性性质,因此其界面脱粘问题实际上是弹性-粘弹性或双粘弹性各向同性材料界面裂纹问题,对该问题的研究涉及到粘弹性力学、界面断裂力学和燃烧学等相关学科。
