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ODS (Operational Deflection Shape) Analysis, When and Why ...

A response that is defined in terms of operating on the environment.-reinforcement is showen by a downward deflection of the pen.Rats are trained in a non discriminated avoidance procedure using a lever press as the response and a very loud tone as an aversive stimulus.If a 10-second s-s interval and 60-second r-s interval was used.

Operating Deflection Shape Analysis | Response Dynamics

Sep 01, 2014· Operating Deflection Shape (ODS) analysis is a method used for visualisation of the vibration patterns of a machine or structure caused by unknown operating forces. This is different from the study of the vibration patterns of a machine under known external forces, which is usually referred to as Modal Analysis.

MEASURING OPERATING DEFLECTION SHAPES

May 03, 2018· ODS usually refers to taking accelerometer data at many points on a structure and using ODS software to map the accelerometer data to a very coarse representation of the geometry to visualize the vibration mode shapes and determine the frequencies of the structure.

(PDF) Measuring operational deflection shapes with a ...

The measurement procedure is similar to the procedure used for single input modal analysis. ... Mode shapes and operating "deflection" shapes are re- lated to one another. In fact, one is always ...

Operating Deflection Shape - ODS Analysis | Brüel & Kjær

Jul 10, 2020· The operational deflection shapes can be saved as shown in Figure 18: Figure 18: Saving an operational deflection shape. To save the operational deflection shape: Move cursor to desired position. Position can be rpm or frequency. After reaching …

Operating Deflection Shape (ODS) - OROS

Operating Deflection Shapes Now an affordable modal software providing a comprehensive package for modal test, for modal experts as well as novice engineers. The OROS Modal software is designed for modal analysis, structural dynamics and operating deflection shapes (ODS vibration).

Operation Deflection Shape-Level I - Presencial

SimuTech's expertise in advanced vibration measurement and analysis techniques includes modal testing (rap testing or bump testing), operating deflection shape (ODS) analysis, strain gage measurements, spectrum (signature) analysis, order tracking, joint time frequency (waterfall) analysis, demodulation and finite element analysis (FEA ...

Operating Deflection Shapes - Structural Vibration Solutions

Operating Deflection Shape Analysis - An operating deflection shape analysis (ODS analysis) provides the deformation shape of a structure in response to the forces that are applied to the structure during its operation. The animated structure below is a steam turbine/gear box/pedestal system that was setting off vibration alarms and cracking ...

What is Operating Deflection Shape (ODS) Analysis ...

Dec 12, 2018· What is Operational Deflection Shape (ODS) Analysis 4. Difference between ODS and Modal Analysis • ODS is performed when machine is in running mode and Modal Analysis is performed when machine is in stop condition. • An operating deflection shape shows the deformation of a structure at a specific frequency or during a time waveform playback.

[PDF] INTRODUCTION TO OPERATING DEFLECTION SHAPES …

Operating Deflection Shapes (ODS) analysis can be divided into three types – time ODS, spectral ODS and run-up/down ODS. System suggestion . Brüel & Kjær's scalable ODS systems provide complete guidance through the set-up, measurement and animation for each ODS type.

OMG! What is OMA? Operational Modal Analysis

system. So actually, there is a big difference between operating deflections and mode shapes - we can now see that the modes shapes are summed together in some linear fashion to form the operating deflection patterns. I hope that this helps to clear up the mystery as to the differences between operating deflection patterns and mode shapes.

What's the difference between operating deflection shapes ...

Time Operating Deflection Shapes (ODS) of an Antique Bell. WaveImage MODAL software module for calculating vibrational properties under operating conditions. Easy method used for the visualization of the vibration pattern of a structure as influenced by its own operating forces. Easily build models of complex machinery and structures.

From operating deflection shapes towards mode shapes using ...

and operating deflection shapes. What Are Operating Deflection Shapes? Traditionally, an ODS has been defined as the deflection of a structure at a particular frequency. However, an ODS can be defined more generally as any . forced motion of two or more . points on a structure. Specifying the motion of two or more points defines a shape.

The use of Operating Deflection Shapes (ODS) to model the ...

Dec 12, 2018· What is Operational Deflection Shape (ODS) Analysis 4. Difference between ODS and Modal Analysis • ODS is performed when machine is in running mode and Modal Analysis is performed when machine is in stop condition. • An operating deflection shape shows the deformation of a structure at a specific frequency or during a time waveform playback.

ODS (Operational Deflection Shape) Analysis, When and Why?

The use of Operating Deflection Shapes (ODS) to model the vibration of sanders and polishers HSL/2006/104 Author: HSL Subject: The use of Operating Deflection Shapes (ODS) to model the vibration of sanders and polishers HSL/2006/104 Keywords: Operating Deflection Shapes, ODS, modelling, vibration, sanders, polishers, HSL/2006/104 Created Date

What is an Operational Deflection Shape (ODS)?

In order to acquire the dynamic behavior or the operating deflection shape of different kinds of machinery and equipment, Optomet laser Doppler vibrometers are the perfect measurement tools because they are flexible enough to measure all types of vibrations quickly and without contact even over long distances, rotating parts or glowing surfaces.

Operating Deflection Shapes

Sep 09, 2020· Operating Deflection Shape (ODS) Analysis helps users understand the dynamics of the unit under test by animating the test structure's vibration. As the term suggests, the structure's deformation during operating conditions is visualized. This …

Modal Analysis and Operating Deflection Shape ...

This 4½ day course provides a basic understanding on how to use Experimental Modal Analysis (EMA) and Operating Deflection Shape (ODS) Analysis. The focus of this class is on applying these powerful diagnostic tools on real-world machinery and structures rather than expending class time on deriving high-level mathematical formulas (a ...

Operating Deflection Shapes - WaveImage - Modal Analysis ...

and operating deflection shapes. What Are Operating Deflection Shapes? Traditionally, an ODS has been defined as the deflection of a structure at a particular frequency. However, an ODS can be defined more generally as any . forced motion of two or more . points on a structure. Specifying the motion of two or more points defines a shape.

Operating Deflection Shapes Detect Unbalance in Rotating ...

Operating Deflection Shape (ODS) Operating Deflection Shape (ODS) – is a term often used in the structural engineering analysis, known as ODS analysis. ODS analysis is a method used for visualisation of the vibration response of a machine or structure as influenced by its own operating forces, or extraneous forces (tidal, wind) and presents the data in an animated 3D wireframe mesh format.

ODS Operating Deflection Shapes - OROS

Operation Deflection Shape-Level I - Presencial. OVERALL OBJECTIVE: This course is designed for those who have advanced mastery in Vibrational Analysis technologies, increase their knowledge of the dynamics of machines and structures through the presentation of practical historical cases executed by Vibro Technology, a step-by-step demonstration will be made of the procedure to execute the ODS ...

Using Operating Deflection Shapes to Detect Faults in ...

The updating procedure can be based on mode shapes or on operating deflection shapes. The operating deflection shapes correspond to the deformations that the structure suffers when it …

ODS Operating Deflection Shape

An Operating Deflection Shape contains the overall vibration on a structure. In other words, the ODS contains both forced and modal response components. On the other hand, a mode shape characterizes only the modal response. If a structure is excited dynamically around the resonance frequencies of one or more of the structural modes, the ...

Procedure Operating Deflection Shapes - Philippe Lange

Using Operating Deflection Shapes to Detect Unbalance in Rotating Equipment . Surendra N. Ganeriwala (Suri) Brian Schwarz & Mark H. Richardson Spectra Quest, Inc Vibrant Technology, Inc 8205 Hermitage Road 5 Erba Lane, Suite B . Richmond, VA 23228 Scotts Valley, CA 95066 ...

Operating deflection shape - Wikipedia

Apr 01, 2010· Operating deflection shapes evaluated at a resonance frequency of the structure may resemble the mode shape associated to the resonance frequency provided the neighboring modes are lightly coupled. If modal coupling is significant, or the frequency where we evaluate the ODS is between modal frequencies, the ODS is an arbitrary linear ...