鱼雷涡轮动力系统参数仿真

【作者】 聂卫东；

【导师】 赵寅生；

【作者基本信息】 西北工业大学 ， 机械电子工程， 2002， 硕士

【摘要】 现代战争对鱼雷的战术技术指标提出了更高的要求。而作为鱼雷武器心脏的动力系统对鱼雷的战术技术指标的高低起着至关重要的作用，所以对鱼雷动力系统的研究应予以特别的关注。 鱼雷涡轮发动机属于复杂系统，特别是变工况条件下，系统各参数的匹配与控制则更为复杂。因此利用数字计算机辅助系统建模和仿真在设计阶段是必须的也是必要的，仿真能模拟真实系统试验，为设计提供尽可能详尽的参数数据；仿真的结果也是建立系统控制方程的根据。 本文以工程热力学为理论基础，以鱼雷开式循环部分进气纯冲动式复速级涡轮发动机为研究对象。首先分析设计工况时涡轮机动力系统，在满足鱼雷动力系统的各项外部条件(如鱼雷航深、航速等)和内部条件(如涡轮机功率、效率，燃烧室压力、温度，转子机械强度等)的前提下，建立起设计工况涡轮发动机的数学模型，编程计算并确定涡轮机内部机械结构和燃气热力学状态各参数。然后以上述计算结果为依据，研究鱼雷涡轮机在变工况条件下的内部参数，此时涡轮机机械结构参数已由设计工况分析所确定。采用与设计工况时相类似的分析步骤着重研究了两种非设计工况：鱼雷航行时的恒深变速工况和恒速变深工况。建立模型，仿真计算，最后分析结果，提出可行的变工况控制方案。更多还原

【Abstract】 More and more higher performance of torpedo is required to adapt to the present-day war. The thermodynamic propulsion system is the central part of torpedo. Its performance is the key of tactical and technical requirement to modern torpedo. So it is necessary to pay more attention to the thermodynamic propulsion system in torpedo research.In simulation theory terms, torpedo turbine engine system is a complicated system. Especially at non-design condition, the works of matching and controlling inner parameters of system is more difficult. For this reason, it is obligatory to use digital computer in establishing system’s mathematics model and system simulating at the phase of turbine engine system designing. Through system simulating, we can provide as more detail parameters for designing as possible. The resort of system simulating is the base of establishing system controlling formulation.This paper is based on the theory of engineering thermodynamics. The research object is unclosed-cycle-form partial-flow two-stage impulse torpedo turbine. First we study the design condition of torpedo turbine. The precondition of establishing mathematics model of torpedo turbine system in design condition is to fulfill the external conditions (such as torpedo sailing speed and depth etc.) and inner conditions (such as turbine power and efficiency etc.). After establishing mathematics model of torpedo turbine system in design condition, we compiled simulation program to compute all kinds of inner parameters of turbine engine include engine type, principal layout of turbine, inner structure of turbine and state parameters of gases. Based on above computing, we researched two kinds of non-design condition-process of changing speed in the same depth and process of changing depth in the same speed. Establishing mathematics model and computing, then we bring forward a kind of measure to adjust the turbine during the transition process.更多还原