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首页> 外文会议>International Conference on Recent Advances in Space Technologies >Characterization of a Geostationary Satellite Thruster Plumes Using Response Surface Generation
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Characterization of a Geostationary Satellite Thruster Plumes Using Response Surface Generation

机译：利用响应面生成表征对地静止卫星推进器羽状物

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Satellites make use of thrusters related to their missions, station keeping maneuvers and end-of-life transfers. One of the secondary effects of thruster firings are the disturbing forces and torques caused by the interactions between the plume and satellite. A comprehensive numerical effort is conducted to predict disturbing forces and torques due to thruster plume and give input to mission related performance such as the amount needed for the lifetime of the satellite. A numerical approach which is based on Direct Simulation Monte Carlo method is used to model the plume of thrusters making use of adaptive mesh refinement (AMR) and Message Passing Interface (MPI). The individual simulations are able to predict the disturbing forces and torques given the position, orientation and exit profiles of thrusters on a geostationary satellite geometry. The other major focus of the study is to efficiently sweep the design parameter space, create response surface functions (RSF) that are orders of magnitude faster than actual high fidelity simulations and feed these RSFs into orbit propagation tools.
机译：卫星利用与它们的任务，驻地保持机动和寿命终止转移有关的推进器。推进器点火的次要作用之一是由羽流和卫星之间的相互作用引起的干扰力和扭矩。进行了全面的数值努力，以预测由于推进器羽流引起的干扰力和扭矩，并为与任务相关的性能（例如卫星寿命所需的数量）提供输入。使用基于直接模拟蒙特卡洛方法的数值方法，利用自适应网格细化（AMR）和消息传递接口（MPI）对推进器的羽流建模。给定对地静止卫星几何形状上推进器的位置，方向和出口轮廓，单独的仿真能够预测干扰力和扭矩。该研究的另一个主要重点是有效扫掠设计参数空间，创建比实际高保真度仿真快几个数量级的响应面函数（RSF），并将这些RSF馈入轨道传播工具。

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