Shapes can be saved in a table in terms of acceleration, velocity and displacement. Intuitive software supporting time, spectral and runupdown operating deflection shapes ods analysis. Structural vibration solutions as structural vibration solutions as is a supplier and developer of software for operational modal analysis. Ods operating deflection shape ansys student community. Mescopeves has been specifically designed to make it easier for you to observe and analyze a variety of vibration and acoustics problems in machines and structures. 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. Click to see ods overview video click to see animated samples. This bk connect software performs analysis for time, spectral and runupdown ods. To measure the operating deflection shape, the system must be run at steady state conditions for an extended period, typically one to several hours depending on the complexity and size of the system.
Our software we make software for visualizing vibration. Artemis modal includes time as well as frequency domain operating deflection shapes ods. The best operating deflection shape ods software amp. Dynamic measurement on a bladed turbine disk for mode shapes identification.
The purpose is to take my knowledge to the next level serious and advanced level as well as to finalize an amc with reliable expert service provider within india. Most often this is done by performing ods operating deflection shape analysis or modal analysis. During the animation the vibration movement is slowed down to very low frequency and the amplitude of the motion is increased so we can see the. The purpose is to take my knowledge to the next level serious and advanced level as well. Whats the difference between operating deflection shapes and. Cool channel setup tricks for triaxial accelerometers. In fact, one is always measured in order to obtain the other. In the following section, this relationship is examined in more detail. Feb 20, 2015 using digivibemx m30 for making a 3d ods operating deflection shapes analysis with one of the examples included in the demo version. Operating deflection shapes detect unbalance in rotating.
During the animation the vibration movement is slowed down to very low frequency and the amplitude of the motion is increased so we can see the vibration. Wide range of operational shape deflection testing services. Dec 12, 2018 ods operational deflection shape analysis, when and why. Below is an ods taken on a longwall tail drive while being tested at the repair facility, under no load. Operational deflection shape ods analysis taqiuddin haider vibration analyst level iii 2. All versions have estimators for operational modal analysis oma and operating deflection shapes ods. Extensive overview of mescope software and hands on use about 50% of class time. Bk connect operating deflection shapes analysis bruel. Typically, thousands of measuring points are captured synchronously with every measurement, enabling a holistic analysis of a component under vibration. Study the vibration pattern of a structure under given operating conditions. Operational deflection shape analysis and vibration.
Our experience includes motors, pumps, gearboxes, turbines, fans, piping, conveyor heads and what may be the largest ods test performed in the power industry a turbine generator and two floors of the turbine building. Operating deflection shapes analysis determination of. University uses siemens digital industries software solutions. The operating deflection shape ods is the simplest way to see how a machine or structure moves under given operating conditions. Using this software enables the visualisation in animation of vibrations of a certain machine. We are accomplished in route based vibration programs, remote analysis, dual channel and cross channel vibration measurements, modal analysis, operational deflection shapes ods, phase analysis, shaft vibration measurement, product defect analysis, online monitoring, transient capture, torsional vibration, resonance testing, stress wave. Release of a major new version of the software platform. An operating deflection shape or ods consists of vibration measurements taken at various points on a machine or structure. Theory experimental modal analysis with primary focus on impact excitation. Operating deflection shapes ods analysis determines the vibration patterns of a structure under operating conditions.
Pdf introduction to operating deflection shapes by. Dec 12, 2018 ods is a process of diagnosing rotating machinery, it may become unavoidable to do some structural vibration analysis as well. Clear motion ods is a program for animating measured vibration. In this paper, we will discuss ods measurements, and their relationship to experimental modal parameters. Ods analysis is a method used for visualisation of the vibration pattern of a machine or structure as influenced by its own operating forces. Hudgins helps you understand and resolve forced vibration problems with a powerful analytical service called ods operating deflection shape analysis. From vibration signals acquired with accelerometers, it determines the vibration pattern of a structure under given operating conditions.
This can lead to mistakes when doing a modal analysis or operational deflection shape. Using digivibemx m30 for making a 3d ods operating deflection shapes analysis with one of t. Time operating deflection shapes ods of an antique bell waveimage modal software module for calculating vibrational properties under operating conditions. Operating deflection shape ods and modal analysis ods services. By animating spatially acquired data in slow motion, a structures overall motion, and the motion of one part relative to another, can be viewed.
Artemis modal is produced in three versions and the key features are listed below. The measurements are taken while the machine is operating. This means that we visualize the vibrations of the machine by animation. Clear motion ods is a software package designed for building structural models, and applying measured values to the models to generate animations of the structural motion. Intuitive software supporting time, spectral and runupdown operating deflection shapes ods analysis request a quote this bk connect software performs analysis for time, spectral and runupdown ods. Operational deflection shapes method in trouble shooting. An operational deflection shape is an animation of the vibration pattern in a structure. Now an affordable modal software providing a comprehensive package for modal test, for modal experts as well as novice engineers.
These features allow you to study the overall vibration pattern either over a time segment or at a specific frequency. A future inspection will be completed underground with loaded conditions. Operating deflection shapes structural vibration solutions. An operating deflection shape shows the deformation of a structure at a specific frequency or during a time waveform playback. The vibration patterns are shown as animated geometric models and display a combination of the forcing function acting on the structure and the dynamic properties of the structure. As optional features for all versions are the data acquisition plugin, allowing direct control of selected data acquisition hardware, and the experimental. What is the difference between operating deflection shapes. Operational deflection shapes you will learn about planning ods jobs, phase analysis, instrumentation requirement and how to set up your analyzer to collect time and frequency based projects, ods data types, and use of mescope software to model, animate and analyze ods projects. Time domain responses accelerations are recorded from various parts of the structure during operation, and a reference measurement location is identified. Artemis operating deflection shapes software ods by. If an engineer were to perform some analysis using the prosig software modal analysis they would be said to be performing oma. Figure 1 is an operational deflection shape of a vibration issue in a truck that occurs at cruising speeds.
Operational deflection shape and modal analysis testing to solve resonance problems in a vertical pump. Modal analysis and modal testing ods, mimo, oma dewesoft. In the process of diagnosing rotating machinery, it may become unavoidable to do some structural vibration analysis as well. Shape percent difference a better measure of change in an ods is the shape percent difference spd. This version contains new features as well as great improvements in performance. By default, directions on channels can be set independently. This pulse labshop software controls operating deflection shapes ods measurements.
Dear vib legends, i am very curious to know about the best software for operating deflection shape ods which is acceptable worldwide by most of the organizations. If an engineer were to animate a wireframe model using a set of acceleration transmissibility spectra, he would be viewing operating deflection shapes ods. Depending on the type of machinery involved, this often means. A sound intensity test helps find frequencies at which the sound levels peak and helps validate the operational deflecting shapes.
The operational deflection shapes and transient analysis of. Operational deflection shape analysis and vibration solving. What is operational deflection shape ods analysis ods models is a technique for observing the real behavior of system vibration against any forcing function. Operational deflection shapes ods can be useful to view the vibration patterns of a structure.
Operating deflection shapes test consultant type 7765. Edm modal operational deflection shape ods is a feature. All of the geometrical drawing and the measurement process are carried out in a prebuilt real time multichannel frequency analysis project. During the animation the vibration movement is slowed down to very low frequency and the amplitude of. Ods operational deflection shape software an ods shows how your machine or structure is moving, and whether or not there are excessive vibration levels.
Directions are not checked for compliance to the right hand rule. 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 forces. Both the amplitude and phase of vibration measurements are animated. In order to acquire the dynamic behavior 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. It is our mission to be the worlds leading provider of operational modal analysis solutions and to follow our vision to develop structural vibration solutions that every engineer can use.
This is different from the study of the vibration patterns of a machine under known external forces, which is. Yet, they are quite different from one another in a number of ways. Operational deflection shapes ods from a gas turbine generator. Is it a mode shape or an operating deflection shape. Artemis operating deflection shapes software ods by structural vibration solutions as. The animated deflection shapes ads is a method that can help you find the. The software enables the user to investigate the operating deflection shapes of the machine under test. Ods operational deflection shapes equipment health. The vibration is felt in the steering wheel and seat by the truck occupant. 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. Mode shapes and operating deflection shapes are related to one another. It helps you set up, acquire and then analyse the recorded time data. Modal analysis for test engineers including operation. This can be done with the aid of ads, a software programme based on the concept of operational deflection shapes ods.
I would much rather call the data we receive from an operating condition, an. This option provides fast and efficient structural model generation and full 3d visualization of test and analysis results. It is designed for animation of both operating deflection shape ods as well as impact response measurements. Jul 14, 2015 operational deflection shapes ods can be useful to view the vibration patterns of a structure. The modal analysis provides the engineer with the complete hard and software equipment necessary to carry out a successful modal analysis or an operating deflection measurement.
Operating deflection shapes waveimage modal analysis. The animated deflection shapes software is based on the method of operating deflection shapes. The operational modal analysis helps visualize actual motor vibrations at certain points on the motor that are being analyzed also called operating deflection shapes. The use of operating deflection shapes ods to model the. Ods operational deflection shape analysis, when and why. Fullfield vibrometers are complete solutions that are made up of sensor technology, data acquisition and analysis software. Modal analysis and operating deflection shape, applications. Optical 3d metrology enhances the capabilities for the determination of operational deflection shapes and mode shapes by providing accurate fullfield 3d data of shape and displacements. The ods contains the overall dynamic response of a structure due to forced and resonant vibration. These features allow you to study the overall vibration pattern eit. As its name suggests operational deflection shape analysis shows the vibration pattern experienced during normal operational condition. Most often this is done by performing ods operating deflection shape. Whats the difference between operating deflection shapes and mode shapes.
Mode shapes and operating deflection shapes odss are related to one another. Operating deflection shapes now an affordable modal software providing a comprehensive package for modal test, for modal experts as well as novice engineers. Webinar identifying operational deflection shapes gom. Ods software visualizes the vibration pattern of a machine or structure under reallife operating conditions through modal development. Is it a mode shape, or an operating deflection shape. In fact, odss are always measured in order to obtain mode shapes.
Making a 3d ods analysis operating deflection shapes. Operating deflection shapes detect unbalance in rotating equipment. In order to acquire the dynamic behavior 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. Edm modal geometryodsanimation is the primary edm modal software module, and is required for every edm modal system. Easy method used for the visualization of the vibration pattern of a structure as influenced by its own operating forces.
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. I request you all to please, please suggest guide help me in finding the best and well accepted software for operating deflection shape. Operational deflection shapes ods from a gas turbine. Default channel setup behavior allows directions to. They visualize eigenmodes and operational deflection shapes in a meaningful way and provide you with data quality that takes simulation model validation to a whole new level. This is different to other structural vibration tests such as impact hammer tests, bump tests or shaker tests. Since an operating deflection shape is defined simply as the response of a structure at a specific time or frequency, no. In experimental modal analysis the exact dynamic behavior of a structure can be determined. 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. Operating deflection shape ods, is a term often used in the structural vibration analysis, known as ods analysis. Operational deflection shape experimental modal analysis.
Different animation types and views are supported including sidebyside, overlaid and difference animation. Whats the difference between operating deflection shapes. The software enables the user to investigate the operating deflection shapes of. The oros modal software is designed for modal analysis, structural dynamics and operating deflection shapes ods vibration. Operating deflection shapes ods, mode indicator functions mif, cola analysis are fully implemented in dewesoft while operational modal analysis oma and timedomain ods are available with close integration with an external software package. An operational deflection shape ods is the easiest way to actually see how a machine or structure moves during its operation.
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