CAREER: Stochastic and Dynamic Interaction of Vehicle-Pavement Systems and Its Applications to Transportation Infrastructure

职业：车辆-路面系统的随机和动态相互作用及其在交通基础设施中的应用

• 批准号: 0644552
• 负责人: Lu Sun
• 金额: --
• 依托单位: Catholic University of America
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-05-01 至 2012-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0644552&HistoricalAwards=false
• 关键词: CAREER; Stochastic; Dynamic; Interaction; Vehicle

Vehicle-Pavement Interaction (VPI) is a central problem to highway and airport pavement design. It also has a profound impact on infrastructure management, vehicle suspension design, and the nation?s economy. This project will provide novel approaches and ideas for pavement surface roughness characterization, vehicle random vibration, and dynamic pavement behaviors under vehicular loads, and unify them into a coherent scheme for applications in structural health monitoring (SHM), vibration mitigation (VM), nondestructive evaluation (NDE), and vehicle weigh-in-motion (WIM). The proposed solution will be developed with interaction with other disciplines in a global approach. The CAREER proposal is an integrated and interdisciplinary research effort including methodological, analytical, numerical and experimental work across the full spectrum of elastodynamics, random vibration, statistical science, computer simulation and infrastructure management. This research will add new scientific knowledge to the subject by providing better understanding of VPI, new avenues for novel sensing and information processing principles, and a foundation for developing a far-sighted research program with long reach. Intellectual Merit: the main outcomes of this project are 1) the establishment of a methodological foundation that systematically integrates pavement surface roughness, vehicle vibration, and dynamics of pavement structure systems as a whole; 2) the development of a software toolkit to automate modeling and simulation of vehicle vibration and to analyze dynamic pavement response under various dynamic loads; 3) an improved quantitative understanding on effects and mechanisms of various factors on dynamic response of pavement structure systems; and 4) the revealing of fundamentals of VPI and its applications to improve accuracy and reliability of SHM, NDE and WIM and to innovate landmark methods in these applications. The engineering science field would be advanced as a result of this work due to having better models to predict dynamic pavement response under vehicular loading for improving pavement design and the creation of new areas of long-term research and continuous development in SHM, NDE and WIM. Broader Impacts: This research will benefit the research community, the transportation industry,and the society as a whole. The impact of the proposed work is broad and high not only from scientific research and economic perspectives but also from an educational standpoint. CUA is located in Washington, DC, with its unique combination of diverse cultures. Thus the student body is featured by diversity. Full participants in this proposed project include underrepresented minorities, women, and international students. Graduate and undergraduate students involved in this project will gain cross-disciplinary exposure and experience with state-of-the-art experimental techniques and analytical skills. The use of sensor technology for experiment and field test and the emphasis on innovative applications of numerical modeling and computer simulation provide a unique opportunity for outreach to students and the industry. From this project, a substantial quantity of the materials will be made available on the internet and disseminated in conference and journal publications.

车辆与路面相互作用（VPI）是高速公路和机场路面设计的核心问题。它还对基础设施管理、车辆悬架设计和国家经济产生深远的影响。该项目将为路面粗糙度表征、车辆随机振动和车辆载荷下的动态路面行为提供新颖的方法和想法，并将它们统一成一个连贯的方案，用于结构健康监测（SHM）、减振（VM）、无损检测等领域。评估（NDE）和车辆动态称重（WIM）。拟议的解决方案将通过全球方法与其他学科的互动来开发。职业提案是一项综合的跨学科研究工作，包括弹性动力学、随机振动、统计科学、计算机模拟和基础设施管理等各个领域的方法、分析、数值和实验工作。这项研究将通过提供对 VPI 的更好理解、新颖传感和信息处理原理的新途径以及开发具有长远影响力的有远见的研究项目的基础，为该学科增添新的科学知识。智力成果：该项目的主要成果是1）建立了系统地整合路面粗糙度、车辆振动和路面结构系统动力学的方法基础； 2）开发软件工具包，以自动对车辆振动进行建模和仿真，并分析各种动态载荷下的动态路面响应； 3）更好地定量理解各种因素对路面结构系统动力响应的影响和机制； 4）揭示VPI的基础原理及其应用，以提高SHM、NDE和WIM的准确性和可靠性，并创新这些应用中的里程碑式方法。这项工作将推动工程科学领域的发展，因为拥有更好的模型来预测车辆载荷下的动态路面响应，以改进路面设计，并在 SHM、NDE 和 WIM 方面创建长期研究和持续开发的新领域。更广泛的影响：这项研究将使研究界、交通行业和整个社会受益。拟议工作的影响不仅从科学研究和经济角度而且从教育角度来看都是广泛而高的。 CUA 位于华盛顿特区，独特地融合了多元文化。因此，学生群体具有多样性的特点。该拟议项目的全部参与者包括代表性不足的少数族裔、妇女和国际学生。参与该项目的研究生和本科生将获得跨学科的接触和最先进的实验技术和分析技能的经验。使用传感器技术进行实验和现场测试，以及对数值建模和计算机模拟的创新应用的重视，为学生和行业的推广提供了独特的机会。该项目的大量材料将在互联网上提供，并在会议和期刊出版物中传播。