arrow_back_ios

Main Menu

See All Acoustic End-of-Line Test Systems See All DAQ and instruments See All Electroacoustics See All Software See All Transducers See All Vibration Testing Equipment See All Academy See All Resource Center See All Applications See All Industries See All Insights See All Services See All Support See All Our Business See All Our History See All Our Sustainability Commitment See All Global Presence
arrow_back_ios

Main Menu

See All Actuators See All Combustion Engines See All Durability See All eDrive See All Transmission & Gearboxes See All Turbo Charger See All DAQ Systems See All High Precision and Calibration Systems See All Industrial electronics See All Power Analyser See All S&V Hand-held devices See All S&V Signal conditioner See All Accessories See All DAQ Software See All Drivers & API See All nCode - Durability and Fatigue Analysis See All ReliaSoft - Reliability Analysis and Management See All Test Data Management See All Utility See All Vibration Control See All Acoustic See All Current / voltage See All Displacement See All Load Cells See All Pressure See All Strain Gauges See All Torque See All Vibration See All LDS Shaker Systems See All Power Amplifiers See All Vibration Controllers See All Accessories for Vibration Testing Equipment See All Training Courses See All Articles See All Whitepapers See All Acoustics See All Asset & Process Monitoring See All Custom Sensors See All Data Acquisition & Analysis See All Durability & Fatigue See All Electric Power Testing See All NVH See All Reliability See All Smart Sensors See All Vibration See All Weighing See All Automotive & Ground Transportation See All Calibration See All Installation, Maintenance & Repair See All Support Brüel & Kjær See All Release Notes See All Compliance See All Our People
arrow_back_ios

Main Menu

See All CANHEAD See All GenHS See All LAN-XI See All MGCplus See All Optical Interrogators See All QuantumX See All SomatXR See All Fusion-LN See All Accessories See All Accessories See All BK Connect / Pulse See All API See All Microphone Sets See All Microphone Cartridges See All Acoustic Calibrators See All Special Microphones See All Microphone Pre-amplifiers See All Sound Sources See All Accessories for acoustic transducers See All Experimental testing See All Transducer Manufacturing (OEM) See All Accessories See All Non-rotating (calibration) See All Rotating See All CCLD (IEPE) accelerometers See All Charge Accelerometers See All Impulse hammers / impedance heads See All Cables See All Accessories See All Electroacoustics See All Noise Source Identification See All Environmental Noise See All Sound Power and Sound Pressure See All Noise Certification See All Industrial Process Control See All Structural Health Monitoring See All Electrical Devices Testing See All Electrical Systems Testing See All Grid Testing See All High-Voltage Testing See All Vibration Testing with Electrodynamic Shakers See All Structural Dynamics See All Machine Analysis and Diagnostics See All Process Weighing See All Calibration Services for Transducers See All Calibration Services for Handheld Instruments See All Calibration Services for Instruments & DAQ See All On-Site Calibration See All Resources See All Software License Management

Sine-on-random

A vibration controller feature used within a closed-loop test system to simultaneously generate a broadband random signal alongside multiple sinusoids.

img

Sine-on-random

expand_more
chevron_left
chevron_right

Sine-on-random (SoR) vibration control simulates complex vibration environments with a combination of broadband random excitation and sinusoids or 'tones'. Generally, both signal types are present simultaneously and the tones may either appear at fixed frequencies or sweep over a frequency range.

A typical example is the vibration from an automobile drive train as the vehicle accelerates and the gear ratio is changed; another, is the periodic bursts of ammunition shot from an airborne helicopter.

USE SCENARIOS

  • Simulation of vibration characterized by broadband random with one or more superimposed tones
  • Gunfire from helicopters or propeller-driven aircraft
  • Automobile vibration in the engine, drive train and transmission during speed changes

CHARACTERISTICS

In this type of test profile, the broadband random signal consists of a user-defined breakpoint table of power spectral density (PSD) versus frequency, as with pure random control. Up to 20 sine tones may be concurrently generated; a digital tracking filter is applied to each tone to accurately extract its amplitude from the control feedback signal.

Each tone usually has independently-set amplitude, frequency-sweep range and rate. The user may also specify a sine-sweep profile versus frequency within constant acceleration, velocity and displacement segments. Slopes and crossover points will be automatically calculated by the control algorithm.

A harmonic mode is available, whereby subsequent tones generated are an integer multiple of the first tone’s frequency. To simulate gunfire, sine tone on- and off-periods can be preprogrammed. Multi-sine functionality can be configured by disabling the broadband random, allowing multiple sine-tone excitation only.

SoR includes all of the automatic and manual test controls that are included in the random feature. A separate sine-tone track is usually displayed for each sweeping tone, providing a pre-test validation of the configuration.

File

Description

Type

Languages

Size

Vibration Control Software for VC-LAN Vibration Controller Types 7541 and 7542

Technical Document English 867 KB