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.

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.

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.

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.

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.

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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.

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.

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

As we communicate internationally, language barriers persist. In the technical fields, the metric-imperial units clash is slowly diminishing. Many vibration analysts are “bilingual” in that respect and are comfortable using either system. But for more casual users who may only encounter vibration data in regard to meeting specs, unfamiliar vibration amplitude units can be a challenge.