The demand for large antennas in future space missions has increasingly stimulated the development of deployable membrane antenna structures owing to their light weight and small stowage volume. However, there is litt...The demand for large antennas in future space missions has increasingly stimulated the development of deployable membrane antenna structures owing to their light weight and small stowage volume. However, there is little literature providing a comprehensive review and comparison of different membrane antenna structures. Space-borne membrane antenna structures are mainly classified as either parabolic or planar membrane antenna structures. For parabolic membrane antenna structures, there are five deploying and forming methods, including inflation, inflation-rigidization, elastic ribs driven, Shape Memory Polymer （SMP）-inflation, and electrostatic form- ing. The development and detailed comparison of these five methods are presented. Then, properties of membrane materials （including polyester film and polyimide film） for parabolic membrane antennas are compared. Additionally, for planar membrane antenna structures, frame shapes have changed from circular to rectangular, and different ten- sioning systems have emerged successively, including single Miura-Natori, double, and multi-layer tensioning systems. Recent advances in structural configurations, tensioning system design, and dynamic analysis for planar membrane antenna structures are investigated. Finally, future trends for large space membrane antenna structures are pointed out and technical problems are proposed, including design and analysis of membrane structures,materials and processes, membrane packing, surface accuracy stability, and test and verification technology. Through a review of large deployable membrane antenna structures, guidance for space membrane-antenna research and applications is provided.展开更多
选取某规格全钢子午线轮胎胶料分别进行单轴拉伸、等双轴拉伸和平面拉伸不同变形模式测试,分析比较不同变形模式组合时Yeoh,Ogden和Van der Waals等本构模型的拟合精度,并以同规格轮胎为例对比不同变形模式下本构模型的仿真精度。结果表...选取某规格全钢子午线轮胎胶料分别进行单轴拉伸、等双轴拉伸和平面拉伸不同变形模式测试,分析比较不同变形模式组合时Yeoh,Ogden和Van der Waals等本构模型的拟合精度,并以同规格轮胎为例对比不同变形模式下本构模型的仿真精度。结果表明,当仅有单轴拉伸数据时适宜选择Yeoh模型,而3种变形模式结合使用能够更好地表征胶料在工作状态时的变形状态。展开更多
基金Supported by Research Fund of Institute of Spacecraft System Engineering,China Academy of Space Technology,China(Grant No.ZTBYY-7)
文摘The demand for large antennas in future space missions has increasingly stimulated the development of deployable membrane antenna structures owing to their light weight and small stowage volume. However, there is little literature providing a comprehensive review and comparison of different membrane antenna structures. Space-borne membrane antenna structures are mainly classified as either parabolic or planar membrane antenna structures. For parabolic membrane antenna structures, there are five deploying and forming methods, including inflation, inflation-rigidization, elastic ribs driven, Shape Memory Polymer （SMP）-inflation, and electrostatic form- ing. The development and detailed comparison of these five methods are presented. Then, properties of membrane materials （including polyester film and polyimide film） for parabolic membrane antennas are compared. Additionally, for planar membrane antenna structures, frame shapes have changed from circular to rectangular, and different ten- sioning systems have emerged successively, including single Miura-Natori, double, and multi-layer tensioning systems. Recent advances in structural configurations, tensioning system design, and dynamic analysis for planar membrane antenna structures are investigated. Finally, future trends for large space membrane antenna structures are pointed out and technical problems are proposed, including design and analysis of membrane structures,materials and processes, membrane packing, surface accuracy stability, and test and verification technology. Through a review of large deployable membrane antenna structures, guidance for space membrane-antenna research and applications is provided.
文摘选取某规格全钢子午线轮胎胶料分别进行单轴拉伸、等双轴拉伸和平面拉伸不同变形模式测试,分析比较不同变形模式组合时Yeoh,Ogden和Van der Waals等本构模型的拟合精度,并以同规格轮胎为例对比不同变形模式下本构模型的仿真精度。结果表明,当仅有单轴拉伸数据时适宜选择Yeoh模型,而3种变形模式结合使用能够更好地表征胶料在工作状态时的变形状态。
