面向大型木构古建筑损坏预测及健康管理关键问题研究

项目名称： 面向大型木构古建筑损坏预测及健康管理关键问题研究

项目编号： No.61203094

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 自动化学科

项目作者： 路杨

作者单位： 河南大学

项目金额： 26万元

中文摘要： 古建筑是一个国家历史文化遗产重要组成部分，属于不可再生资源，具有极高社会和经济价值。但在历经岁月沧桑保存过程中，由于人为和自然力破坏，都不同程度遭受损坏甚至毁灭。传统保护方式多采用抢救性即损坏后修复，且过分依靠专家经验，这将导致文物携带信息的丢失，违背"保护为主、抢救第一、合理利用、加强管理"的方针。本课题以大型木构古建筑为背景，以信息融合方法为手段，建立一套损坏预测及健康管理方法，重点研究：①对象基本信息获取体系搭建：多学科融合下监测、检测条目及获取方案确定；传感器优化布局；确定、不确定信息的特征提取算法；②对象损坏预测及健康管理：以特征为驱动的非线性动态损坏预测及健康评估概率模型建立；③对象损坏传播机制下回归模型的建立，确定环境因子损坏对象的方式及程度，得到最佳环境状态；④最佳维修时机及维修策略确定：结合专家知识及仿真实验，确定维修临界点；建立维修策略空间及与损坏模式空间集值映射函数。

中文关键词： 木构古建筑；信息获取；故障检测；寿命预测；视情维护

英文摘要： Ancient buildings, which belongs to the exhaustive resources and has extremely high social and economic value, make an important part in the national historical and cultural heritages. However, during years of conservation, existing ancient buildings have currently suffered various degrees of damage even ruin due to artificial and natural destructions. In the traditional perservation methods, the emergency restoration scheme is widely used, i.e., restoration after damage. This method relies on the expertise experience too much which may lead to the loss of information in the cultural relics. It is contrary to the policy of protection prevailing, rescuing first, rational utilization and strenghtening management. Based on the large ancient timber buildings and using the Information fusion method, this project will construct the failure prediction and health management method. In this project, we will mainly focus on the following problems: ① Establishing the system for extracting the basic information of the object and optimizing the layout of the sensors, which include the scheme of monitoring, testing items and information acquisition under the background of multidisciplinary integration, and the feature extraction algorithm of certain or uncertain information; ② The fault prediction and health management, i.e.,

英文关键词： wooden ancient building；information extraction；fault detection；life prognosis；condition-based maintenance