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Questions?

For information about ANSI/EASA AR100 or questions about the work on this standard, contact:

Mike Howell, PE
EASA Technical Support Specialist
+1 314 993 2220
mhowell@easa.com

ANSI Accredited Standards Developer Information

EASA Technical Manual

  • May 2026
  • Number of views: 41628
  • Article rating: .8
FREE for Members of EASA

Revised May 2026!
EASA's most comprehensive technical document is available FREE to EASA members. Download the complete manual or just the sections you're interested in.

Vibration - Coast-Down Analysis

  • February 2026
  • Number of views: 2178
  • Article rating: No rating
FREE for Members of EASA

Spectrum analysis is the primary tool for analyzing vibration problems. Yet, a lot of useful information can be acquired by tracking the vibration characteristics as power is disconnected from the machine.

Quick Checks for Resonance

  • February 2026
  • Number of views: 2608
  • Article rating: 2.5

Simple diagnostic tests—such as bump tests and speed‑variation checks—can be used to identify resonance as the cause of high vibration in rotating machinery. By recognizing when vibration frequencies align with natural frequencies, technicians can diagnose resonance issues early and avoid unnecessary corrective actions.

Comprobaciones rápidas de resonancia

  • February 2026
  • Number of views: 1584
  • Article rating: 3.0

Este artículo explica cómo pruebas diagnósticas simples —como las pruebas de impacto (bump tests) y las verificaciones mediante variación de velocidad— pueden utilizarse para identificar la resonancia como causa de alta vibración en maquinaria rotativa. Al reconocer cuándo las frecuencias de vibración coinciden con las frecuencias naturales, los técnicos pueden diagnosticar problemas de resonancia tempranamente y evitar acciones correctivas innecesarias.

Beyond Reactive: Wireless Vibration Monitoring for EASA Members

The Evolving Landscape of Electrical Apparatus Maintenance

  • August 2025
  • Number of views: 3199
  • Article rating: No rating

Wireless vibration monitoring enables proactive maintenance by providing real-time diagnostics, reducing downtime, and improving asset reliability. With evolving technology and lower costs, service providers can enhance offerings, strengthen customer relationships, and gain a competitive edge through predictive insights and smarter asset management strategies.

Más alla de lo Reactivo: Vibración Inalámbrica para Miembros de EASA

Panorama Evolutivo del Mantenimiento de Equipos Eléctricos

  • August 2025
  • Number of views: 2239
  • Article rating: No rating

La monitorización inalámbrica de vibraciones permite un mantenimiento proactivo al proporcionar diagnósticos en tiempo real, reducir el tiempo de inactividad y mejorar la fiabilidad de los activos. Gracias a la evolución de la tecnología y la reducción de costes, los proveedores de servicios pueden optimizar su oferta, fortalecer las relaciones con los clientes y obtener una ventaja competitiva mediante información predictiva y estrategias de gestión de activos más inteligentes.

Rewind 2024

  • July 2024
  • Number of views: 7477
  • Article rating: No rating

Revisit EASA's 2024 Convention & Solutions Expo by buying access to recordings of the general sessions and education events streamed from EASA's website! These recordings provide just over 32 hours of training. Downloadable PDFs of slides and technical papers are included!

Cómo efectuar una "prueba de impacto" para resonancia

  • July 2024
  • Number of views: 6029
  • Article rating: 1.8

Cuando la resonancia causa una vibración excesiva, es importante identificar la frecuencia natural y la forma modal de la vibración. Una simple prueba de impacto (bump test), realizada a máquina parada, es un buen primer paso para identificar la frecuencia natural.

How to Conduct a “Bump Test” for Resonance

  • July 2024
  • Number of views: 15444
  • Article rating: 1.8

When resonance does cause excessive vibration, it is important to identify the natural frequency and the mode shape of the vibration. A simple bump test, conducted with the machine not running, is a good first step in identifying the natural frequency.

Static-Couple Balancing

  • May 2024
  • Number of views: 5749
  • Article rating: 5.0
FREE for Members of EASA

This focused introduction will explain the what, how and why of static-couple balancing from a practical point of view.

EASA Rewind Study cover

The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors
Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.

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EASA Good Practice Guide

Good Practice Guide to Maintain Motor Efficiency
Based on the 2019 and 2003 Rewind Studies of premium efficiency, energy efficient, IE2 (formerly EF1) and IE3 motors

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