Analysis of the Pendular and Pitch Motions of a Driven Three Dimensional Pendulum

نویسنده

  • T Findley
چکیده

A three dimensional pendulum modeled after the Laser Interferome ter Gravitational wave Observatory s suspended optics was constructed to investigate the pendulum s dynamics due to suspension point motion In particular we were interested in studying the pendular pitch energy coupling Determination of the pendular s Q value was made from fre quency domain analysis of the experimental data However the pitch s Q value had to be calculated using a numerical simulation

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Seismic Rehabilitation of Liquid Storage Tanks using Friction Pendulum Base Isolation subjected to the Near-Fault Ground Motions

Cylindrical liquid storage tanks are considered as vital structures in industrial complex whose nonlinear dynamic behavior is of crucial importance. Some of these structures around the world have demonstrated poor seismic behavior over the last decades. There are several methods and techniques for rehabilitation and reducing damages in these structures which among them passive control devices, ...

متن کامل

Meshing Error of elliptic cylinder gear based on tooth contact analysis

In order to study the dynamic meshing characteristics of the elliptic cylinder gear and obtain the meshing error of the gear transmission system, the two-dimensional static contact analysis of the gear tooth surface is carried out by using ANSYS software, and the key parts of the contact area of the tooth surface are determined. Then, the dynamic meshing model of the elliptic cylinder gear is e...

متن کامل

Post-critical Behavior of Three- dimensional Composite Beams Near the Autoparametric Resonance under Flapwise Excitation

The bifurcation analysis of a composite beam subjected to harmonic flapwise base excitation is studied when the ratio of flapwise and chordwise internal resonances is 1:2. Results are obtained by the numerical solution of modulation equations. Chracteristics of the response are investigated in terms of time history, phase portraits diagrams and bifurcation diagram of poincare maps. It is observ...

متن کامل

RoboBat: Dynamics and Control of a Robotic Bat Flapping Flying Testbed

This paper investigates the control of the phase di erence in between three di erent motions of bat ight: pitching, apping, and lead-lag. For active control, a robotic bat test bed capable of simulating di erent wing motions is used to test the control of these wing motions and the phase di erences using central pattern generators (CPG’s). Previous work with the robotic bat is expanded upon by ...

متن کامل

Three-Dimensional Simulation of Airflow and Nano-Particle Beam Focusing in Aerodynamic Lenses(RESEARCH NOTE)

In this paper airflow, nano-and micro-particle motions in an aerodynamic particle beam focusing system consisting of several lenses, a nozzle and the downstream chamber, was studied. A three-dimensional numerical simulation for the system was presented and the compressible airflow and thermal conditions in the aerodynamic lens system were evaluated. Dilute particle concentration was assumed so ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006