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Operating Deflection Shapes (ODS) Analysis

Nuclear power plant after sunset. Dusk landscape with big chimneys.

Mobility Testing

In mobility testing, accelerance, mobility and compliance functions are calculated. For structures with well-separated modes, estimation of natural frequencies and damping ratios is possible. Often done during troubleshooting using hammer testing.

rail illustration outline

Operating Deflection Shapes (ODS) Analysis

A versatile application for determining the vibration patterns of machinery and structures under various operating conditions such as engine speed and ambient forces. Our ODS systems guide you through the entire measurement and analysis process.

rail illustration outline

Operating Deflection Shapes (ODS) Analysis

A versatile application for determining the vibration patterns of machinery and structures under various operating conditions such as engine speed and ambient forces. Our ODS systems guide you through the entire measurement and analysis process.

Operating Deflection

Operating Deflection Shapes (ODS) Analysis

A versatile application for determining the vibration patterns of machinery and structures under various operating conditions such as engine speed and ambient forces. Our ODS systems guide you through the entire measurement and analysis process.

Mobility Testing

Mobility Testing

A versatile application for determining the vibration patterns of machinery and structures under various operating conditions such as engine speed and ambient forces. Our ODS systems guide you through the entire measurement and analysis process.

rail illustration outline

Operating Deflection Shapes (ODS) Analysis

A versatile application for determining the vibration patterns of machinery and structures under various operating conditions such as engine speed and ambient forces. Our ODS systems guide you through the entire measurement and analysis process.

rail illustration outline

Operating Deflection Shapes (ODS) Analysis

A versatile application for determining the vibration patterns of machinery and structures under various operating conditions such as engine speed and ambient forces. Our ODS systems guide you through the entire measurement and analysis process.

rail illustration outline

Operating Deflection Shapes (ODS) Analysis

A versatile application for determining the vibration patterns of machinery and structures under various operating conditions such as engine speed and ambient forces. Our ODS systems guide you through the entire measurement and analysis process.

rail illustration outline

Operating Deflection Shapes (ODS) Analysis

A versatile application for determining the vibration patterns of machinery and structures under various operating conditions such as engine speed and ambient forces. Our ODS systems guide you through the entire measurement and analysis process.

Operating Deflection

Operating Deflection Shapes (ODS) Analysis

A versatile application for determining the vibration patterns of machinery and structures under various operating conditions such as engine speed and ambient forces. Our ODS systems guide you through the entire measurement and analysis process.

rail illustration outline

Operating Deflection Shapes (ODS) Analysis

A versatile application for determining the vibration patterns of machinery and structures under various operating conditions such as engine speed and ambient forces. Our ODS systems guide you through the entire measurement and analysis process.

mechanic checking the motor of a car

Operating Deflection Shapes (ODS) Analysis

A versatile application for determining the vibration patterns of machinery and structures under various operating conditions such as engine speed and ambient forces. Our ODS systems guide you through the entire measurement and analysis process.

engineer with glasses working on the computer with two screens showing the durability simulation and analysis software tools

Mobility Testing

In mobility testing, accelerance, mobility and compliance functions are calculated. For structures with well-separated modes, estimation of natural frequencies and damping ratios is possible. Often done during troubleshooting using hammer testing.

Turbomeca Helicopter with 2250

Turbomeca Helicopter with 2250

Type 3656-A

Vibration toolkit for field inspection of all helicopter engine families produced by Safran Helicopter Engines.

Type 3656-A

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Safran Helicopter Engine Vibration Test Kit Type 3656-A is designed for field inspection of all Safran helicopter engine families. Vibration test measurements are performed according to the respective maintenance manual.

Type 3656-A has been developed by Brüel & Kjær in close collaboration with Safran, a leading helicopter engine manufacturer.

The test kit comprises a vibration meter (with measurement templates for all Safran engines), a high-temperature accelerometer, and a 10 m cable, all packed in a handy shoulder bag.

USE CASES

Standard: Vibration check during a run-up from engine START to FLIGHT
High N1/NGG rate: Vibration check during a run-up from FLIGHT to the maximum speed of the gas generator reachable on ground (or in flight for Arriel® 1 single-engine helicopters after Deep Maintenance Intervention)

BENEFITS

Immediate and unambiguous pass/fail decisions according to engine maintenance manual instructions
Recording and documentation of test data according to Safran requirements for easy interaction with Safran Services

FEATURES

Verifies overall vibration levels in a specific frequency range during engine run-up/high N1-NGG rate against allowable limits
SAFRAN HE templates for all engine families are included
Message if level limitations are exceeded
Metadata annotation according to SAFRAN HE requirements
One-handed operation and simplified operator user interface
Only one transducer and one cable needed
No computer required during measurements
No tachometer connection required
Manual storage of results with full annotation including the raw signal for post-processing
Enhanced diagnostics can be carried out after the test by post-processing the raw time signal
Easy reporting, data transmission and data export to consumer software
Long-life rechargeable battery operation (>8 hours)

SAFRAN Helicopter Engine Vibration Test Kit Type 3656-A

Data Sheets

English

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This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.