[Objective]The research aimed to study climatic change characteristics of sunshine hours in Lianyungang and analyze its formation reason. [Method]Based on monthly sunshine hours,precipitation,cloudiness,haze days and ...[Objective]The research aimed to study climatic change characteristics of sunshine hours in Lianyungang and analyze its formation reason. [Method]Based on monthly sunshine hours,precipitation,cloudiness,haze days and vapor pressure from 7 stations of Lianyungang from 1961 to 2010,monthly,seasonal,annual and interdecadal change trends of the sunshine hours were analyzed by using MK test,linear trend analysis and Morlet wavelet. Meanwhile,the cause of change characteristics was analyzed. [Result] Monthly sunshine hours of Lianyungang showed bimodal distribution,and seasonal and annual sunshine hours had decreasing trend at different degrees. The interdecadal change of sunshine hours showed wave characteristics. The annual sunshine hours had multiple temporal-spatial scale features,and there was an obvious mutation in the late 1980s. Sunshine hours in Lianyungang was closely related to visibility,cloudiness,vapor pressure and haze,and they were important factors causing that sunshine hours significantly declined. [Conclusion]The research could provide reference basis for scientifically developing and using solar energy resource and reasonably adjusting industrial and agricultural structures.展开更多
As a critical subsystem in space solar power stations(SSPSs),the integrated modular structure plays a pivotal role in energy collection and transmission.Consequently,the mechanical properties of the integrated modular...As a critical subsystem in space solar power stations(SSPSs),the integrated modular structure plays a pivotal role in energy collection and transmission.Consequently,the mechanical properties of the integrated modular structure,particularly those utilizing the Miura-origami(Miura-ori)pattern,are crucial to the overall performance of SSPSs.This study explores the deployment ratio and performance of a modular flat structure based on the Miura-ori SSPS concept.A comprehensive analysis of a single module and an array of multiple interconnected modules is presented,focusing on deployment ratio and performance simulation,including the geometry model,material property,and finite element model.Additionally,it evaluates the effects of various array configurations,considering factors such as stowed volume and natural modal of the array.The findings from the simulation and evaluation provide valuable insights for optimizing the design of SSPS array structures.展开更多
基金Supported by Meteorological Youth Fund of Jiangsu Province,China(Q201104)the Project of Science and Technology Bureau in Lianyungang of Jiangsu Province,China(SH1206,SH1013)the Project of Science and Technology Department of Jiangsu Province,China(BE2011720)
文摘[Objective]The research aimed to study climatic change characteristics of sunshine hours in Lianyungang and analyze its formation reason. [Method]Based on monthly sunshine hours,precipitation,cloudiness,haze days and vapor pressure from 7 stations of Lianyungang from 1961 to 2010,monthly,seasonal,annual and interdecadal change trends of the sunshine hours were analyzed by using MK test,linear trend analysis and Morlet wavelet. Meanwhile,the cause of change characteristics was analyzed. [Result] Monthly sunshine hours of Lianyungang showed bimodal distribution,and seasonal and annual sunshine hours had decreasing trend at different degrees. The interdecadal change of sunshine hours showed wave characteristics. The annual sunshine hours had multiple temporal-spatial scale features,and there was an obvious mutation in the late 1980s. Sunshine hours in Lianyungang was closely related to visibility,cloudiness,vapor pressure and haze,and they were important factors causing that sunshine hours significantly declined. [Conclusion]The research could provide reference basis for scientifically developing and using solar energy resource and reasonably adjusting industrial and agricultural structures.
基金supported by the Civil Aerospace Technology Research Project(No.D010103)National Key R&D Program of China(No.2021YFB3900300).
文摘As a critical subsystem in space solar power stations(SSPSs),the integrated modular structure plays a pivotal role in energy collection and transmission.Consequently,the mechanical properties of the integrated modular structure,particularly those utilizing the Miura-origami(Miura-ori)pattern,are crucial to the overall performance of SSPSs.This study explores the deployment ratio and performance of a modular flat structure based on the Miura-ori SSPS concept.A comprehensive analysis of a single module and an array of multiple interconnected modules is presented,focusing on deployment ratio and performance simulation,including the geometry model,material property,and finite element model.Additionally,it evaluates the effects of various array configurations,considering factors such as stowed volume and natural modal of the array.The findings from the simulation and evaluation provide valuable insights for optimizing the design of SSPS array structures.
