基于OpenFlight模型的通用桥梁红外辐射特性模拟方法  

Infrared Radiation Characteristics of General Bridge Based on OpenFlight Model

作　　者：丁伟利[1,2] 王露[1] 

机构地区：[1]燕山大学电气工程学院自动化系,河北秦皇岛066004 [2]中国科学院光电信息处理重点实验室,沈阳110016

出　　处：《光电工程》2013年第10期54-62,共9页Opto-Electronic Engineering

基　　金：中科院光电信息重点实验室开放基金(OEIP-O-201204)

摘　　要：对桥梁结构进行分析及简化,提出了基于OpenFlight模型的通用桥梁建模方法,将梁式桥、斜拉索桥、拱桥和悬索桥统一为一种通用的模型结构,并分别针对桥梁箱体结构、主缆、索塔、护栏等典型部件的热特性,综合考虑各种自然因素,建立桥梁红外辐射特性计算理论模型,并以图像的灰度信息模拟红外辐射特性,开发了通用的桥梁红外辐射特性计算及成像仿真软件系统,实现了任意时刻、任意地理位置、任意气象条件下不同类型桥梁的红外辐射特性模拟。实验结果表明提出方法与现有桥梁红外成像仿真结果具有一致性,符合典型桥梁的红外热辐射规律。A new general modeling method for bridge based on the OpenFlight model is proposed by analyzing and simplifying the structure of bridge, making the girder-type bridge, suspension bridge, arch bridge and cable bridge a general model structure. Aiming at heat characteristics of box girder, cable, railing and other typical part of bridge, the computational model for infrared radiation characteristics is built by considering a variety of natural factors, which can be simulated through image gray information. Moreover, a general software system is developed. Experimental results show that the method can effectively simulate the infrared radiation characteristics of bridge at any time, any geographical position and any meteorological environment.

关 键 词：红外辐射特性 红外成像仿真 温度分布 桥梁建模 OpenFlightAPI 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] TN21[自动化与计算机技术—计算机科学与技术]