Purpose

The purpose of this paper is to simulate the thermal performance of fluidic momentum controller (FMC) actuators in two case, with and without thermal distribution system on a three-axis configuration of FMC actuators to an orbital period of satellite. The results show the effectiveness of using a storage with FMC actuators.

Design/methodology/approach

One of the challenges during a satellite’s orbital mission is unpredictable external temperature perturbations. This system used as a collaborative thermal subsystem for microsatellite temperature passive control. The operating principles of the system are that each fluid rings are used in a microsatellite surface with pumps to stabilize the satellite. All fluid rings are connected to the satellite thermal distribution system (storage).

Findings

Simulation results show that with using of thermal distribution system, damping of satellite different surfaces temperature is rapidly possible to the event of thermal disturbances.

Practical implications

Numerical simulation is obtained by ANSYS Fluent software and pressure-velocity coupling is SIMPLE method and spatial discretization is second order accurate and first order in time, viscous model is k-e. In this regard, a solver algorithm is also developed.

Originality/value

In space research fields about FMC application as actuators to satellite system design, main goal is to research about role of this system to attitude and determination control system (ADCS) of satellites, and no study is performed on its role to satellite temperature damping. This study is exclusively simulated thermal distribution system (includes a storage and its connections) of a microsatellite equipped with FMC actuators. The idea of using a storage for FMC actuators is the innovative step of this research.

中文翻译：

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配备FMC执行器的微卫星热力分配系统的仿真

目的

本文的目的是模拟两种情况下的流体动量控制器（FMC）促动器的热性能，在有或没有热分配系统的情况下，FMC促动器的三轴配置都可达到卫星的轨道周期。结果显示了使用带有FMC执行器的存储器的有效性。

设计/方法/方法

卫星执行轨道飞行任务时面临的挑战之一是不可预测的外部温度扰动。该系统用作微卫星温度被动控制的协作热子系统。该系统的工作原理是，每个流体环都用于带有泵的微卫星表面，以稳定卫星。所有流体环都连接到卫星热分配系统（存储）。

发现

仿真结果表明，利用热分配系统，在发生热干扰时，可以迅速衰减卫星不同表面温度。

实际影响

通过ANSYS Fluent软件进行数值模拟，压力-速度耦合为SIMPLE方法，空间离散为二阶精度和一阶时间，粘性模型为ke。在这方面，还开发了一种求解器算法。

创意/价值

在有关FMC作为卫星系统设计执行器的空间研究领域中，主要目标是研究该系统在卫星姿态和确定控制系统（ADCS）中的作用，而没有研究其对卫星温度阻尼的作用。这项研究是专门模拟的装有FMC执行器的微卫星热分布系统（包括存储器及其连接）。为FMC执行器使用存储器的想法是这项研究的创新步骤。