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Vibration, dynamics and noise

formerly BETA Machinery and SVT

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Reciprocating Compressors

VDN is the world’s largest provider of compressor pulsation and vibration services. Working with VDN results in:

- Superior reliability and smoother operations
- Reduced vibration problems and lower maintenance costs
- ​Responsive design and field support

Design Requirements

This comprehensive chart outlines the required scope and options per API 618 and GMRC High Speed Compressor Guideline.

The scope applies to new (or modified) compressors. For problems with existing compressors, contact our field troubleshooting group.
Design requirement for Reciprocating Compressors

 

What are pulsations?

Pulsation forces in the piping system can be up to 10,000 lbf (44,500 N), causing piping failures.

For an explanation of pulsation forces and other dynamic forces on a reciprocating compressor, see our training video: 
Module 2: Pulsations and Other Forces in a Reciprocating CompressoR

 

Webinar: Vibration problem solving – back to basics

On-site troubleshooting – part 1: back to basics

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Pulsation & Mechanical Analysis: Reciprocating Compressor
Reciprocating Compressor station - API 618 Pulsation & Mechanical Analysis

Pulsation study, mechanical review and frequency avoidance analysis, forced response analysis (when required); per API 618, API 688 and GMRC High-Speed Compressor Guideline.

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Five simple methods to check reciprocating compressor performance

How to spot-check the performance of a reciprocating compressor

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Bottle Sizing Service
Pulsation Bottle Sizing for Reciprocating Compressor - free calculator

This service provides recommended sizing for pulsation bottles used on reciprocating compressors.

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Foundation Design and Dynamic Analysis
Foundation Design and Dynamic Analysis - cracked foundation

Including Concrete, Gravel, and Piles

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Pipe Stress Analysis
Pipe Stress Analysis (Thermal Analysis, Flexibility)

(Thermal Analysis, Piping Flexibility Analysis)

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Vibration Inspection Program

Site Assessment, Piping Integrity, Baseline Survey, AVIFF

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Skid Design and Analysis
Skid Design - Skid Analysis

Lifting, Environmental Loading; Static and Dynamic Design

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Small-Bore Connections (SBC) Assessment
Small Bore Connection (SBC) Vibration Analysis

for all machinery types and applications

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Specifications

Specs and guidelines for vibration, stress, pulsation, and dynamic studies, including commissioning and reliability/integrity inspection services.

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Structural Vibration and Dynamic Design Analysis
Structural Vibration and Dynamic Design Analysis for FPSOs, Platforms, Elevated Structures

for FPSOs, Platforms, Elevated Structures

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Torsional Vibration Analysis (TVA)
Torsional analysis study

A torsional study evaluates crankshaft, coupling, and gears to ensure torsional vibration is acceptable.

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Troubleshooting, Root Cause Analysis (RCA)
Troubleshooting compressor

Advanced vibration analysis including pulsation, resonance, stress and transients

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Motion Amplification Vibration Analysis

For improved vibration analysis of piping, machinery and structures

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Related Pages
BETA Machinery Analysis logo
SVT Engineering Consultants logo
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