地震灾害场景仿真模拟的研究与应用

Earthquake Disaster Scenario Simulation Technology

地震是一种极大的突发性自然灾害.应对地震时,应急管理人员必须作出适当的应对策略.为了能够作出正确的决策,他们必须要事先经过演练.演练可以有多种技术和方法.其中一种方法就是虚拟演练.虚拟演练不像传统的演练那样需要更多的人力和物力.地震应急救援虚拟仿真演练是虚拟仿真的一个重要领域.地震灾害虚拟场景的逼真程度是决定虚拟仿真演练效果的关键因素.地震灾害现场错综复杂,如果对每一部分的地震灾害场景详细模拟是不可行的.通过研究建筑物倒塌形成的不同状态以及倒塌建筑物在空间上的分布规律、分细节度模型方案构建场景、次生灾害模拟表现方法、场景整合的方式,论述了构建相对真实地震灾害虚拟场景的方法和应用手段.通过研究为地震应急救援虚拟仿真演练系统的研发奠定一定的基础,为其视景仿真模块的场景表现提供了理论依据.

Earthquake is a huge devastating and paroxysmal natural disaster. Emergency leaders have to do several jobs during the response to earthquake. In order to do the right job they must be trained. Training can be done by using several techniques and methods. One of the methods is virtual training. Doing training with virtual training simulation give the opportunity to train leaders without numbers of persons that are normally needed for training. Virtual emergency rescue training simulation is one of virtual simulation research areas. The realistic extent of earthquake virtual scene is to determine the effect of virtual simulation training. The purpose of this paper is to build virtual disaster scenario. Because the earthquake disaster is very complicated,it＇s not possible to simulate every aspect of earthquake disaster scenario in detail. In this paper,by studying the formation of building collapse and the collapse of buildings in the distribution of space,sub-model way to build the scene,secondary disaster simulation methods,scenes integration approach,the authors discuss how to build a relatively realistic virtual earthquake disaster scenario. The research of this paper has laid a foundation for the research and development of virtual simulation training systems,and provided a theoretical basis for the visual simulation modules.