Time-resolved fuel regression measurement function of a hybrid rocket solid fuel integrated by multi-material additive manufacturing
Time-resolved fuel regression measurement function of a hybrid rocket solid fuel integrated by multi-material additive manufacturing
复制标题
多材料增材制造集成混合火箭固体燃料的时间分辨燃料回归测量功能
DOI：
10.1016/j.actaastro.2021.06.031
复制
发表时间：
2021
影响因子：
3.5
通讯作者：
Tsuboi Nobuyuki
中科院分区：
文献类型：
--
作者：
Ozawa Kohei;Wang Han-wei;Yoshino Takuro;Tsuboi Nobuyuki
时间分辨燃料回归测量的功能被集成到增材制造的混合火箭燃料中，并通过与燃烧期间的时间分辨光学燃料回归测量的比较在概念上得到了证明。该功能通过主要热塑性固体燃料的多材料增材制造以及由导电热塑性塑料制成的梯形电阻器来实现。这种功能化具有许多优点，如其广泛的适用性所示，包括具有新兴的复杂几何形状的固体燃料颗粒、成本效益、易于实施以及对原始推进性能和燃料回归行为的影响最小。燃料退化是通过施加到梯形电阻器上的电压的阶跃变化来检测的，这表明在燃烧期间其顶部燃料表面横档的断裂。对于点燃的情况下，所有的横档断裂被检测到，而燃料回归也使用高速视频光学测量。使用这两种方法测量的燃料回归时间历程之间观察到误差;然而，这些误差中的大多数可以通过相机方向上的燃料回归分布、相机分辨率和熔化的燃料层厚度来解释。考虑到这些不确定性，无法由这些因素解释的剩余误差小于±0.15 mm，对应于应用于固体燃料原型的±1层增材制造。
The function of time-resolved fuel regression measurement is integrated into additively manufactured hybrid rocket fuels and conceptually demonstrated through the comparison with time-resolved optical fuel regression measurements during burns. This function is enabled by multi-material additive manufacturing of mainly thermoplastic solid fuels with a ladder-shaped resistor made of a conductive thermoplastic. This functionalization has many advantages, as indicated by its wide range of applicability, including solid fuel grains with emerging complex geometries, cost-effectiveness, ease of implementation, and minimal influence on the original propulsive performance and fuel regression behavior. Fuel regression is detected by a step change in the voltage applied to the ladder-shaped resistor, indicating the breakage of its top fuel surface rung during a burn. For ignited cases, all the rung breaks were detected, while the fuel regression was also optically measured using high-speed video. Errors were observed between the fuel regression time-histories measured using the two methods; however, most of these errors could be explained by the distribution of the fuel regression in the camera direction and the camera resolution and the melted fuel layer thickness. Considering these uncertainties, the remaining errors that could not be explained by these factors were less than±0.15 mm, corresponding to±1 layer of additive manufacturing applied to the prototyping of the solid fuels.
登录
查看更多内容
O/F可控混合火箭推进系统节流范围的理论研究
影响因子：
0.8
作者：
Kohei OZAWA;Toru SHIMADA
通讯作者：
Toru SHIMADA
开发CAMUI混合火箭，为小型火箭实验创造市场
DOI：
--
发表时间：
2006
期刊：
Acta Astronautica 59/1-5
影响因子：
--
作者：
H. Nagata;M. Ito;T. Maeda;M. Watanabe;T. Uematsu;T. Totani;I. Kudo
通讯作者：
I. Kudo
燃料回归不确定性下混合比控制混合火箭的性能
影响因子：
1.9
作者：
Kohei Ozawa;Toru Shimada
通讯作者：
Toru Shimada
混合动力车辆的飞行测试
DOI：
--
发表时间：
2006
期刊：
--
影响因子：
--
作者：
G. Story;J. Arves
通讯作者：
J. Arves
混合火箭中时间分辨燃料-谷物端口直径测量
影响因子：
1.9
作者：
S. D. Zilwa;G. Zilliac;M. Reinath;Arif M. Karabeyoglu
通讯作者：
Arif M. Karabeyoglu