Research Equipment for Soil Dynamics Testing

土壤动力学测试研究设备

• 批准号: 9113353
• 负责人: Farshad Amini
• 金额: $ 8.94万
• 依托单位: University of the District of Columbia
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-01-01 至 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9113353&HistoricalAwards=false
• 关键词: Research; Equipment; Soil; Dynamics; Testing

Research equipment will be put in place for new experimental soil dynamics and earthquake engineering research. The resonant column apparatus and the Fast Fourier Transform (FFT) signal analysis workstation will be used to evaluate damping of soils using a new nonlinear technique, and to study the time-dependent nature of dynamic soil behavior under earthquake excitation conditions. The resonant column device is capable of applying both sinusoidal and random excitation for the purpose of determining dynamic soil properties. The FFT workstation includes a powerful dual-channel FFT spectrum analyzer, a waveform recorder, a digital oscilloscope, and an IBM- compatible DOS computer, all integrated in one system. The proposed equipment will provide the Civil Engineering Department with a necessary facility to improve its research capability. With the initial involvement of eight minority students and future involvement of additional minority students the proposed project will enhance the representation of minorities in engineering at the University of the District of Columbia.

将为新的实验土壤动力学和地震工程研究配备研究设备。利用共振柱仪和快速傅立叶变换(FFT)信号分析工作站，利用一种新的非线性技术来评估土体的阻尼性，并研究在地震激励条件下土体动力特性的时变性。谐振柱装置可以同时施加正弦激励和随机激励，以确定土体的动态特性。FFT工作站包括一个功能强大的双通道FFT频谱分析仪、一个波形记录器、一个数字示波器和一台IBM兼容的DOS计算机，所有这些都集成在一个系统中。拟议的设备将为土木工程署提供必要的设施，以提高其研究能力。该拟议项目最初有8名少数族裔学生参与，今后还会有更多的少数族裔学生参与，该项目将提高哥伦比亚特区大学的少数族裔在工程学方面的代表性。