'Natural frequencies' diaporamas de présentation

1.21k views • 85 slides

FORCED VIBRATION & DAMPING

FORCED VIBRATION & DAMPING. Damping. a process whereby energy is taken from the vibrating system and is being absorbed by the surroundings. Examples of damping forces: internal forces of a spring, viscous force in a fluid, electromagnetic damping in galvanometers, shock absorber in a car.

767 views • 49 slides

Tuesday, week 6

592 views • 40 slides

The Statistical Energy Analysis (SEA)

The Statistical Energy Analysis (SEA). S E A. by Michael Fischer JASS 2006 in St. Petersburg. The Statistical Energy Analysis (SEA). Methods used for vibration problems:. by Michael Fischer JASS 2006 in St. Petersburg. The Statistical Energy Analysis (SEA).

425 views • 36 slides

The F inite Element Method A Practical Course

The F inite Element Method A Practical Course. FEM FOR PLATES & SHELLS. CHAPTER 7:. CONTENTS. INTRODUCTION PLATE ELEMENTS Shape functions Element matrices SHELL ELEMENTS Elements in local coordinate system Elements in global coordinate system Remarks CASE STUDY. INTRODUCTION.

473 views • 32 slides

* Hong-Ki Jo 1) , Kyu-Sik Park 2) , Hye-Rin Shin 3) and In-Won Lee 4)

KKNN Seminar Taipei, Taiwan, Dec. 7-8, 2000. SIMPLIFIED ALGEBRAIC METHOD FOR COMPUTING EIGENPAIR SENSITIVITIES OF DAMPED SYSTEM. * Hong-Ki Jo 1) , Kyu-Sik Park 2) , Hye-Rin Shin 3) and In-Won Lee 4) 1) ~ 3) Graduate Student, Department of Civil Engineering, KAIST

406 views • 28 slides

Cyber-Physical Codesign of Distributed Structural Health Monitoring With Wireless Sensor Networks

Cyber-Physical Codesign of Distributed Structural Health Monitoring With Wireless Sensor Networks Gregory Hackmann*, Weijun Guo*, Guirong Yany, Chenyang Lu*, Shirley Dykey *Department of Computer Science and Engineering,

401 views • 27 slides

Millikan Library Demonstration Earthquake Engineering Research Laboratory

Millikan Library Demonstration Earthquake Engineering Research Laboratory. 2005 Preview November 10, 2005. Case Bradford case@ecf.caltech.edu http://ce.caltech.edu/case/. Overview. Dynamic characteristics of Millikan library Forced and ambient vibrations Changes in these characteristics

456 views • 25 slides

Chapter 12.1-SOUND

Chapter 12.1-SOUND. 4. SPEED OF SOUND. Much slower than light Thunder and Lightning Five second delay per mile Depends on wind, temperature, humidity. Speed of Sound. The Speed of Sound depends on the density of the medium through which the sound waves travel. Reflection.

429 views • 22 slides

Static Analysis: Natural Frequency Analysis

223 views • 21 slides

737 views • 18 slides

STANDING WAVES

STANDING WAVES. Nodes. Antinodes. The distance between adjacent antinodes is ? /2. The distance between adjacent nodes is ? /2. The distance between a node and an adjacent antinode is ? /4. FIXED ENDS. fundamental/1 st harmonic. 2nd harmonic. Normal modes. 3rd harmonic.

417 views • 17 slides

Overview

Overview. 3. 2. Introduction Design Analysis Fabrication Testing Conclusions. 4. 5. Introduction. V irginia T ech I onospheric S cintillation M easurement M ission (VTISMM) aka HokieSat I onospheric O bservation N anosatellite F ormation (ION-F) Utah State University

321 views • 15 slides

Full Girder Modal Analysis

Full Girder Modal Analysis. 07-08-19. Feedback from Henri's Analysis:. Current design appears to show a natural frequency at or around 50Hz Changing the position of the brackets on the girder can have a significant effect on the natural frequencies

267 views • 13 slides

176 views • 12 slides

239 views • 11 slides

TCU Structural Analysis

TCU Structural Analysis. Brent R. Lee Southwest Research Institute (210) 522-6093 brent.lee@swri.org. Agenda. Requirements Compliance Table Analysis Approach and Assumptions Natural Frequencies Results Summary. Requirements Compliance Table. Structural Analysis Approach and Assumptions.

262 views • 11 slides

TCU Structural Analysis

TCU Structural Analysis. Brent R. Lee Southwest Research Institute (210) 522-6093 brent.lee@swri.org. Agenda. Requirements Compliance Table Analysis Approach and Assumptions Natural Frequencies Results Summary. Requirements Compliance Table. Structural Analysis Approach and Assumptions.

210 views • 11 slides

What Determines the Color of a Transparent Object?

What Determines the Color of a Transparent Object?. How Do We Describe Color ?. Transparent objects absorb and reemit certain frequencies of visible light The frequencies of light that match the natural frequencies or vibrations of electrons in the transparent matter are absorbed

239 views • 8 slides

Natural Frequencies of Elastic Cantilevered Beams

Natural Frequencies of Elastic Cantilevered Beams. By Chris Klobedanz MANE-4240 Final Project. Purpose. Evaluate the Natural Frequencies of a Steel Cantilever Beam System Compare the Results of Beams with Different Cross-Sectional Areas: Square, Circle, I-Beam

343 views • 8 slides