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Structures Overview

Structures

Structures

Straight-to-the-point structural engineering - Structural testing used to be a long and complex process involving quite extensive trial-and-error and time-consuming test setups. This is no longer the case. With LMS Test.Lab Structures and the LMS SCADAS system, test engineers perform large-scale modal surveys in hours rather than days. They can focus on identifying root causes of vibration problems and apply powerful analysis tools to explore the best solution for practically every structural weakness. ...

Impact Testing

Impact Testing

Impact Testing is ideal for small structures, especially when boundary conditions are seriously disturbed by shaker attachment. While it requires minimum test preparation time, data harvesting is a tedious process. LMS Test.Lab provides a complete modal testing solution from measuring frequency responses to performing modal analysis using impact hammer frequency response function measurements for simultaneous response channels. ...

MIMO FRF Testing

MIMO FRF Testing

LMS Test.Lab MIMO FRF Testing provides a productive state-of-the-art modal testing solution, range from random excitation to replay measured excitation signals, up to 16 shakers. Frequency response function and dynamic stiffness measurements can be performed online simultaneous for all input and output channels, all supporting ICP® transducers, strain gauges (strain gages) or any voltage signal, and are IEEE-1451.4 TEDS compatible....

Operational Deflection Shape and Time Animation

Operational Deflection Shape and Time Animation

LMS Test.Lab Operational Deflection Shape and Time Animation provides both mobile and lab solutions to measure and visualize the structural deformation of any test item under operational load. The animated vibration patterns can be analyzed as time-history, or at selected frequencies for different load conditions or tracked against rotational speed or any operational parameters....

Modal Analysis

Modal Analysis

LMS Test.Lab Modal Analysis offers various fast and accurate single or multiple reference parameter estimation algorithms. The FRFs are gathered and automatically organized to give a comprehensive view of the available data and facilitate FRF selection/de-selection. Various sum and mode indicator functions help stabilization diagram interpretation and pole selection. The solution offers a complete set of modal model validation tools. The scrolling FRF synthesis automatically synthesizes FRFs ...

Operational Modal Analysis

Operational Modal Analysis

Fast and efficient Operational Modal Analysis solutions require an innovative approach. LMS Test.Lab Operational Modal Analysis provides an in-operation testing solution for modal parameter identification, starting from user-selected segments of time data measured on a structure in operating conditions. Time histories are measured with the LMS Test.Lab Parallel Time Recording option of acquisition applications. Any subset of this time data can be used as a reference for the operational ...

Order-based Modal Analysis

Order-based Modal Analysis

The LMS Test.Lab Order-based Modal Analysis workbook is designed for investigation of structural dynamics behavior when rotating force is in run up or coast down operating condition and performs modal analysis on extracted orders. Each order-based mode has modal parameters such as frequency, damping and mode shapes like in classic experimental modal analysis....

MIMO Sine Sweep Testing

MIMO Sine Sweep Testing

LMS Test.Lab MIMO Sine Sweep Testing provides a complete solution for FRF-based modeling of large and complex structures that are difficult to excite with sufficient energy. It uses broadband excitation techniques and its applications range from measuring frequency response functions for path contribution analysis, point mobility measurements of component attachment points to complex stiffness measurements of mounts and bushings....

MIMO Stepped Sine Testing

MIMO Stepped Sine Testing

LMS Test.Lab Stepped Sine Testing provides a multiple input stepped sine excitation to measure multiple input and output frequency response functions to be used for modal analysis. By exciting the structure with a stepped sine, LMS Test.Lab MIMO Stepped Sine Testing combines the high signal-to-noise ratio of sine excitation and front-end controlled input force and provides proper excitation on lightly damped structures....

MIMO Normal Modes Testing

MIMO Normal Modes Testing

LMS Test.Lab MIMO Normal Modes Testing presents multiple input and output phase appropriation techniques. It is designed to measure resonance frequency, damping and mode shapes of a structure. LMS Test.Lab MIMO Normal Modes Testing automatically adjusts amplitude and phase of the forces injected into the structure to tune a single, normal vibration mode. ...

Ground Vibration Testing (GVT)

Ground Vibration Testing (GVT)

LMS Test.Lab Ground Vibration Testing is a complete solution for performing multiple inputs and multiple outputs modal testing with various excitation techniques in order to get better insight of cirtical and non-critical resonance frequencies in shorter time. LMS Test.Lab Ground Vibration Testing combines LMS Test.Lab MIMO FRF Testing, LMS Test.Lab MIMO Sine Sweep Testing, LMS Test.Lab MIMO Stepped Sine Testing and LMS Test.Lab MIMO Normal Modes Testing, it provides excitation capacities ranging ...

Modification Prediction

Modification Prediction

LMS Test.Lab Modification Prediction evaluates structural modifications (mass, stiffness and damping) of elements such as mass, spring-damper and tuned absorber on the dynamic behavior of a mechanical structure using modal system synthesis techniques. Multiple modifications can be prepared and saved in a modification set. ...

Rigid Body Properties Calculator

Rigid Body Properties Calculator

When modeling intricate structures, subassemblies, or mechanism dynamics, the subassembly rigid body characteristics might be too complex or inaccurate to calculate. With the LMS Test.Lab Rigid Body Properties Calculator, LMS offers well-known FRF measurement techniques to extract essential parameters such as center of gravity, moments and principal axes of inertia. ...

Structures - Options

Structures – Options

LMS Front-end drivers; Run Data Averaging & Comparison Organizer; Signature Throughput Processing; Principal Component Analysis; PolyMAX; Automatic Modal Parameter Selection (AMPS); Geometry; Photogrammetric Geometry Definition; Geometry Scanning

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