procedure operating deflection shapes

Development of wing deflection assessment methods …

They analyzed the spectral content of the motion of a flexible Nighthawk mini-unmanned aerial vehicle wing and animated the operating deflection shapes of the wing corresponding to structural resonance frequencies by employing VMD technique.

Shaker based Operating Deflection Shape(ODS) Testing of ...

An operating deflection shape contains the overall vibration for two or more DOFs on a machine or structure. That is, the ODS contains both forced and resonant vibration components.Robert J Sayer[2] explained that, ODS is a vibration testing and analysis procedure, is capable of producing animations of a vibrating mechanical system. Operating deflection shape (ODS) analysis is usually ...

1. Introduction - file.scirp.org

Among all these methods, one kind of method using operational deflection shape (ODS) draw great attention in damage detection. Ratcliffe [ 2 ] proposed the gapped smoothing method (GSM) to deal with the broadband ODS, where the undamaged beam structures are not needed if they are geometrically smooth and made of materials that have no stiffness and mass discontinuities.

PULSE Operating deflection shapes software – Brüel & …

Operating Deflection Shapes Test Consultant TYPE 7765. Shapes can be saved in a table in terms of acceleration, velocity and displacement. Different animation types and views are supported including side-by-side, overlaid and difference animation

Operating Deflection Shapes for the Space Shuttle Partial ...

Operating Deflection Shapes (ODS) [3] can be defined as the deflection of a structure at a particular frequency or time. This is often used to evaluate the absolute dynamic behavior of a machine or structure

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

EXECUTIVE SUMMARY Operating Deflection Shape (ODS) analysis is a relatively easy method used for visualisation of the vibration pattern of a machine or structure as influenced by its own operating …

DOI: 10.1177/1045389X15577643 - journals.sagepub.com

Unlike earlier studies to make use of analytical model for piezoelectric energy harvesting design, this work proposes an experimental method to design a piezoelectric energy harvesting skin using operating deflection shapes of a target mechanical system. This method is more practical in the sense that actual vibration of a target mechanical system can be characterized far better for the ...

Model updating using operating deflection shapes | …

structure : mode shapes (with their associated resonance frequencies) and the operating deflection shapes (or The updating procedure can be based on mode shapes or on Frequency Response Function vectors). In a conservative operating deflection shapes. The operating deflection shapes correspond to the deformations that the structure system, modal parameters ω v, φ ( { }) are solutions of the ...

Modal Analysis and Operating Deflection Shape ...

An operating deflection shape shows the deformation of a structure at a specific frequency or during a time waveform playback. ODS shows the response of a structure to both resonant and forced vibration, and is generally very representative of the real world data. ODS evaluation can be particularly useful in the analysis of rotation machinery equipment where internally generated forces can be ...

FAILURE INVESTIGATION OF RADIATOR SUPPORTING BRACKET …

operating deflection shapes The ODS is a thorough "artificial excitation signature" vibration test performed on the entire unit structure that usually includes data collection on electrodynamic shaker, the associated attachment i.e.

Vibration Analyst Certification | The Vibration Institute

Category III certified Vibration Analysts shall be qualified to perform minor corrective actions involving operating deflection shapes, single-plane balancing, and diagnostic testing. Minimum Recommended Experience: 36 months

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

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 …

What is an Operational Deflection Shape (ODS)? - Siemens ...

Operational Deflection Shapes (or ODS) analysis gives additional insight into noise or vibration problems that individual measurements alone do not. An operational deflection shape is an animation of the vibration pattern in a structure. Both the amplitude and phase of vibration measurements are

New Testing Methods Can Benefit Mechanical Systems

The test procedure for an operating deflection shape analysis consists of acquiring information regarding the displacement and phase of a mechanical system at any discrete frequency. An ODS test is performed while the equipment is in operation using either single- or multi-channel instrumentation.

Dynamic Design Verification (DDV) of vertical pump using ...

structure deflection at a particular frequency. To capture it, an accelerometer was used as a reference and at a reference point, while machine is running.

Modal Analysis and ODS (Operating Deflection Shapes) - …

The OROS Modal software is designed for modal analysis, structural dynamics and operating deflection shapes (ODS vibration). Overview Modal analysis is a powerful technique for understanding structures behavior to validate simulation results, mechanical designs and maintenance.

procedure operating deflection shapes - zvchattrick.be

ScientificNet: Materials Science. Home Operating Deflection Shap, This paper presents a vibration based procedure for locating reductions of stiffness in two-dimensional structures that can be .

Case study of Operational Modal Analysis FL version CMVA 2

and operating deflection shapes (ODS) methods were first conducted. Operational Modal Operational Modal Analysis (OMA) was used in the time domain using the application of the multivariate

Operating deflection shape - Wikipedia

Operating deflection shape (ODS), is a term often used in the structural vibration analysis, known as ODS analysis. ODS analysis is a method used for visualisation of the vibration pattern of a machine or structure as influenced by its own operating forces.

Diesel Generator Operating Deflection Shape Analysis - …

2014-01-19· Vibration analysis from ship diesel generator. Complex mode shape of generator support plate.

A simplified technique to distinguish unbalance and ...

visualization of the Operating Deflection Shape (ODS) is proposed. The technique The technique combines both the data of vibration amplitude and phase measurement.

BK Connect Operating Deflection Shapes – Brüel & Kjær ...

Intuitive software supporting time, spectral and run-up/-down operating deflection shapes (ODS) analysis Request a quote This BK Connect software performs …

MODEL UPDATING USING OPERATING DEFLECTION SHAPES

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 …

Operating Deflection Shapes - Clear Motion Systems

Our Software We make software for visualizing vibration. Clear Motion ODS is a program for animating measured vibration. It is designed for animation of both Operating Deflection Shape (ODS) as well as Impact Response measurements.

Determining Operating Deflection Shape Using the RION …

The operating deflection shape depicted in the figure is evaluated for designing stiffening elements or for applying damping treatments. Graphical depiction of a deflection shape on an HVAC unit at the frequency of compressor rotation and photo of the unit

Energy and Process Vibration Measurement and …

Operating deflection shape is an important analysis procedure used to locate machinery and piping system deflection during operation. It is based upon simplified geometry description of the machine train. After measuring the vibration response at multiple …

Operating Deflection Shapes Detect Unbalance in Rotating ...

12 SOUND & VIBRATION/MAY 2009 so that the shape of the ODS does not change, the SCC will still have a value of 1, indicating no change.

MEASURING OPERATING DEFLECTION SHAPES

for displaying operating deflection shapes on a 3D spatial model of the test machine or structure. The traditional 'transmissibility" measurement, which is a measure of each response normalized by a reference response, is discussed. Then, two new post-processing methods associated with two new types of measurements (the ODS FRF and the ODS Order Track) are introduced, and their use with ...