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所在平台: Udemy |
课程主页: https://www.udemy.com/course/virtual-lab-on-machine-dynamics-mechanical-vibrations/
课程评论：没有评论
**课程名称：** 机械动力学与机械振动虚拟实验室 **课程概述：** 本课程旨在介绍如何使用虚拟实验室进行机械动力学与机械振动实验。课程将引导学员通过各种模拟实验，深入理解自由振动和强迫振动的概念。特别是在缺乏实际机械振动实验室的情况下，这种模拟分析能够帮助学习者掌握实验研究的方法。 课程详细阐述了虚拟实验室的各项功能和实验操作，旨在帮助学员掌握相关概念并熟练运用在线模拟实验室。 **课程内容：** * **第一部分：虚拟实验室与机械动力学及机械振动（MDMV）实验室介绍** * 介绍虚拟实验室的应用范围。 * 阐述MDMV实验室的主要内容。 * **第二部分：自由振动实验** * 详细讲解三种自由振动实验的操作步骤： * 悬臂梁自由振动。 * 简支梁自由振动。 * 固定梁自由振动。 * 实验目的：测定悬臂梁在自由振动下的对数衰减率、阻尼比、阻尼频率和固有频率。 * **第三部分：强迫振动实验** * 详细讲解五种强迫振动实验的操作步骤： * 单自由度（SDOF）系统强迫振动。 * 基座激励。 * 旋转不平。 * 双自由度（2DOF）强迫振动。 * 动吸振器。 * 对单自由度系统和双自由度系统的仿真与分析进行讲解。 * 演示如何绘制动态幅值与频率比的曲线图。
This course explains the use of Virtual Labs for Machine Dynamics and Mechanical Vibrations lab. It takes you through various simulation experiments of free and forced vibrations. In case of absence of a working Mechanical Vibrations laboratory, this type of simulation analysis helps in understanding how to study the experiments. All the experiments of this lab has been explained in detail so as to gain the understanding of various concepts and features of the virtual lab and for practice so that expertise can be gained in handling the online simulation lab. We start with Introduction to Virtual Labs and Introduction to Machine Dynamics and Mechanical Vibrations(MDMV) Lab. We discuss the scope of Virtual Labs and what are the contents of the MDMV lab. Second section deals with Free Vibration Experiments. Here the procedure for three experiments have been explained namely, Free Vibration of- Cantilever beam, Simply Supported beam and Fixed beam. The purpose of these experiment are to determine the logarithmic decrement, damping ratio, damping frequency and natural frequency of a cantilever beam under free vibration.Third section is all about the Forced Vibration Experiments. Here the procedure for five experiments have been explained namely, Forced vibration of SDOF system, Base Excitation, Rotating Unbalance, 2DOF Forced vibration and Dynamic Vibration Absorber. Simulation and analysis of single degree of freedom system and two degree of freedom system has been explained. Also graph plotting of dynamic amplitude versus frequency ratio has been done.
