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| 1 | Preliminary survivability analysis of manned spacecraft following orbital debris penetration显示文摘Meteoroid and orbital debris(M/OD) may cause severe damages or even catastrophic failures for long-term manned spacecrafts in orbit due to the hypervelocity impact(HVI) destruction.It is essential to quantitatively assess the M/OD risk of manned spacecraft.In this paper,the catastrophic failure as-sessment function is successfully integrated into the Meteoroid & Orbital Debris Assessment and Op-timization System Tools(MODAOST),which is the M/OD risk assessment system developed by China Academy of Space Technology.The survivability assessment for the US Lab by MODAOST was con-sistent with that of the Manned Spacecraft Crew Survivability computer code(MSCSurv).Meanwhile,the simulation process showed that this function was more effective than MSCSurv for the application of the standard methodology of M/OD risk assessment instead of the Monte Carlo model.This function expands the ability of MODAOST in predicting the survivability of the typical catastrophic failure modes such as crew hypoxia and the critical cracking. | ZHANG Yong HAN ZengYao LI Ming ZHENG ShiGui | 2009 | Science China(Technological Sciences)2009，52，5： | 6 |
| 2 | A new stability guaranteed second order difference scheme显示文摘 | Li Zengyao Tao Wenquan | 2002 | Num Heat Transfer:Part B2002，42，4： | 1 |
| 3 | A new stability guaranteed second order difference scheme显示文摘 | Tao Wenquan | 2002 | Num Heat Transfer Part B2002，42，4： | 1 |
| 4 | Experimental and numerical analysis of the hydraulic and thermal performances of the gradually-varied porous volumetric solar receiver显示文摘A gradually-varied porous structure is designed to increase the thermal performance of the porous volumetric solar receiver.Based on the replica method and multilayer recoating technique, the silicon carbide porous ceramic with linear-changed geometrical parameters is fabricated. The performances of the uniform and gradually-varied porous volumetric solar receivers are studied by both experiment and numerical simulation. An optimization method combining genetic algorithm and computational fluid dynamics analysis is applied to determine the optimum porosity distribution. The results present that porous volumetric solar receiver with linear-changed geometrical parameters exhibits better thermal performance than the uniform porous volumetric solar receivers, especially when the thickness of the receiver is small. Larger porosity in the front is beneficial for increasing the solar radiation penetration depth, which limits the reflectance and thermal radiative losses. Smaller porosity in the rear traps more solar radiation and increases the convective heat transfer. When the receiver’s thickness is larger, the performance of the gradually-varied volumetric solar receiver is nearly identical to that of the uniform receiver with largest porosity. The double-layer configuration is found to be the optimized structure of the gradually-varied porous volumetric solar receiver. The thermal efficiency could be further improved using genetic algorithm with an 11 K increase of the outlet temperature. | DU Shen LI ZengYao HE YaLing LI Dong XIE XiangQian GAO Yang | 2020 | Science China(Technological Sciences)2020，63，7： | 1 |
| 5 | Implementing fractional Fourier transform and solving partial differential equations using acoustic computational metamaterials in space domain显示文摘Metamaterials can control incident waves in the sub-wavelength range through the design of artificial structures, and realize the functions that natural materials cannot achieve. The study of metamaterials has important theoretical value and application prospects. In recent years, the proposal of computational metamaterials has opened up a brand-new direction for analog computing, providing high-throughput, energy-free computing methods for special computing tasks. However, the development of acoustic computing metamaterials is relatively preliminary, and it is necessary to develop design theories. There is no work to solve partial differential equations and realize fractional Fourier transform in spatial domain acoustic computing metamaterials. In this paper, the acoustic wave computational metamaterial is designed, and the simulation realizes the spatial domain fractional Fourier transform and partial differential equation calculation. It is expected that acoustic computational metamaterials will enable new capabilities in signal acquisition and processing, network computing, and drive new applications of sound wave. | Zengyao Lv Peng Liu Yuanshuai Ding Hangyu Li Yongmao Pei | 2021 | Acta Mechanica Sinica2021，37，9： | 1 |
| 6 | Implementing fractional Fourier transform using SH_(0) wave computational metamaterials in space domain显示文摘Through the design of artificial structures, metamaterials can control the incident wave in the sub-wavelength range to achieve functions that natural materials cannot achieve, such as high absorption, negative refraction, cloaking [1–3],asymmetric propagation [4,5], and holography [6–8]. In recent years, the new concept of computational metamaterials[9–12] has opened up a new direction for analog computing。 | LV ZengYao DING YuanShuai LI HangYu PEI YongMao | 2021 | Science China(Technological Sciences)2021，64，11： | 1 |
| 7 | Numerical thermal optimization of the configuration of multi-holed clay bricks used for constructing building walls by the finite volume method显示文摘 | Li Linping Wu Zhigen Li Zengyao | 2008 | International Journal of Heat and Mass Transfer2008，51，1314： | 1 |
| 8 | A new stability-guaranteed secondorder difference scheme显示文摘 | Li Zengyao Tao Wenquan | 2002 | Numerical Heat Transfer Part B2002，42，： | 1 |
| 9 | Design method and machine learning application of acoustic holographic computational metamaterials显示文摘Acoustic holographic method has been used in imaging,particle manipulation,material preparation and other fields.In acoustics,it is important to design the implementation of any acoustic wave formation surface[1-5].Traditional methods use piezoelectric arrays to control any acoustic wave array. | LV ZengYao LI JianQing HOU ZeWei DING YuanShuai XU WangDong PEI YongMao | 2022 | Science China(Technological Sciences)2022，65，1： | 0 |
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