
Ji ZhangYanshan University | YSU
Ji Zhang
Doctor of Engineering
About
19
Publications
3,504
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Introduction
Harbin Institute of Technology mechanics engineering
Publications
Publications (19)
This paper proposes a flexible kirigami structure. It has rotating rigid squares and cylindrical shells to improve the flexibility of the structure and produce snap-through instability. First, a mechanical spring model based on a quarter of unit cell was established to predict the mechanical characteristics of its deployment. The elastic deformatio...
Foldable and reconfigurable helical antennas change shape to adapt and reconfigure their electromagnetic properties. In order to realize the frequency reconfigurability of helical antennas and increase frequency bandwidth, this paper adds a spherical shell to the top of the Kresling origami, so as to achieve maximum frequency reconfiguration and el...
Origami, such as Miura-ori, is the art of folding two-dimensional materials into complex, elaborate, and multifunctional three-dimensional objects. In this paper, SMP MO sheet are prepared, and the accuracy of deployable process is verified by experiments. The folding and deployable process of SMP MO sheet is divided into 4 stages, and each stage i...
Miura-ori is a form of origami and is widely used in aerospace. The aerodynamic characteristics of Miura-ori composite structure are greatly influenced by its configuration. In this paper, the aerodynamic performance of Mirua-ori sheet in different deployable configurations is studied. Through the analysis of a three-dimensional model of Miura-ori...
A floating air weapon system (such as airborne floating mines) plays an important role in modern air defense operations. This paper focuses on aerodynamic characteristics of airborne floating mine named inflated pillow. Firstly, the dynamic deployable process of the pillow and characteristics of the local instability of the edge are studied, and th...
Owing to the unique advantages in flight altitude, dwelling time and wide coverage area, stratospheric airships provide permanent monitoring and surveillance for both civil and military applications. Here we propose a semi-rigid stratosphere airship design with circumferential high-pressure inflatable rings and a longitudinal carbon fiber skeleton...