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La NASA probará tecnología para medir las singulares ondas de choque del X-59


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Preparations for Next Moonwalk Simulations Underway (and Underwater)

Read this story in English here.

La NASA pronto pondrá a prueba los avances realizados en una herramienta clave para medir los singulares ‘golpes sónicos’ que su avión supersónico silencioso de investigación X-59 producirá durante el vuelo.

Una sonda de detección de impactoses una sonda de datos de aire en forma cónica desarrollada con características específicas para capturar las singulares ondas de choque que producirá el X-59. Investigadores del Centro de Investigación de Vuelo Armstrong de la NASA en Edwards, California, desarrollaron dos versiones de la sonda para recopilar datos precisos de presión durante el vuelo supersónico. Una de las sondas está optimizada para mediciones de campo cercano, capturando las ondas de choque que se producen muy cerca de donde las generará el X-59. La segunda sonda de detección de impactos medirá el centro del campo y recopilará datos a altitudes de entre 5.000 y 20.000 pies por debajo del avión.

Cuando un avión vuela a velocidades supersónicas, genera ondas de choque que viajan a través del aire circundante, produciendo fuertes estampidos sónicos. El X-59 está diseñado para desviar esas ondas de choque, reduciendo los fuertes estampidos sónicos a golpes sónicos más silenciosos. Durante los vuelos de prueba, un avión F-15B con una sonda de detección de impactos acoplada a su morro volará con el X-59. La sonda, de aproximadamente 1,80 metros (6 pies), recolectará continuamente miles de muestras de presión por segundo, captando los cambios de presión del aire mientras vuela a través de ondas de choque. Los datos de los sensores serán vitales para validar los modelos informáticos que predicen la fuerza de las ondas de choque producidas por el X-59, la pieza central de la misión Quesst de la NASA.

“Una sonda de detección de impactos actúa como fuente de la verdad, comparando los datos previstos con las mediciones del mundo real”, dijo Mike Frederick, investigador principal de la NASA para la sonda.

Para la sonda de campo cercano, el F-15B volará cerca del X-59 a su altitud de crucero de aproximadamente 18.000 metros (55.000 pies), utilizando una configuración de “seguir al líder” que permitirá a los investigadores analizar ondas de choque en tiempo real. La sonda de campo medio, destinada para misiones separadas, recopilará datos más útiles a medida que las ondas de choque viajen más cerca al suelo.

La capacidad de las sondas para captar pequeños cambios de presión es especialmente importante para el X-59, ya que se espera que sus ondas de choque sean mucho más débiles que las de la mayoría de los aviones supersónicos. Al comparar los datos de las sondas con las predicciones de modelos de computadora avanzados, los investigadores pueden evaluar con mayor precisión.

“Las sondas tienen cinco puertos de presión, uno en la punta y cuatro alrededor del cono”, explica Frederick. “Estos puertos miden los cambios de presión estática a medida que el avión vuela a través de las ondas de choque, lo que nos ayuda a comprender las características de choque de un avión en particular”. Estos puertos combinan sus mediciones para calcular la presión local, la velocidad y la dirección del flujo de aire.

Los investigadores pronto evaluarán actualizaciones de la sonda de detección de impactos de campo cercano a través de vuelos de prueba, en los que la sonda, montada en un F-15B, recopilará datos persiguiendo a un segundo F-15 durante un vuelo supersónico. Las actualizaciones de la sonda incluyen la colocación de los transductores de presión – dispositivos que miden la presión del aire en el cono – a sólo 5 pulgadas de sus puertos. Los diseños anteriores colocaban esos transductores a casi 3 metros (12 pies) de distancia, lo que retrasaba el tiempo de grabación y distorsionaba las mediciones.

La sensibilidad a la temperatura de los diseños anteriores también presentó un desafío, ya que provocó fluctuaciones en la precisión cuando cambiaban las condiciones. Para solucionar esto, el equipo diseñó un sistema de calefacción para mantener los transductores de presión a una temperatura constante durante el vuelo.

“La sonda cumplirá los requisitos de resolución y precisión de la misión Quesst”, afirmó Frederick. “Este proyecto muestra cómo la NASA puede tomar tecnología existente y adaptarla para resolver nuevos desafíos”.

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      El avión de investigación supersónico silencioso X-59 de la NASA se encuentra en una rampa de Lockheed Martin Skunk Works en Palmdale, California, durante el atardecer. Esta aeronave única en su tipo es propulsada por un motor General Electric F414, una variante de los motores utilizados en los aviones F/A-18. El motor está montado sobre el fuselaje para reducir la cantidad de ondas de choque que llegan al suelo. El X-59 es la pieza central de la misión Quesst de la NASA, que busca demostrar el vuelo supersónico silencioso y permitir futuros viajes comerciales sobre tierra – más rápidos que la velocidad del sonido.Lockheed Martin Corporation/Garry Tice El avión de investigación supersónico silencioso X-59 de la NASA se encuentra en una rampa de Lockheed Martin Skunk Works en Palmdale, California, durante el atardecer. Esta aeronave única en su tipo es propulsada por un motor General Electric F414, una variante de los motores utilizados en los aviones F/A-18. El motor está montado sobre el fuselaje para reducir la cantidad de ondas de choque que llegan al suelo. El X-59 es la pieza central de la misión Quesst de la NASA, que busca demostrar el vuelo supersónico silencioso y permitir futuros viajes comerciales sobre tierra – más rápidos que la velocidad del sonido.Lockheed Martin Corporation/Garry Tice Read this story in English here.
      El equipo detrás del X-59 de la NASA completó en marzo otra prueba crítica en tierra, garantizando que el silencioso avión supersónico será capaz de mantener una velocidad específica durante su funcionamiento. Esta prueba, conocida como mantenimiento automático de velocidad del motor, es el más reciente marcador de progreso a medida que el X-59 se acerca a su primer vuelo este año. 
      “El mantenimiento automático de la velocidad del motor es básicamente la versión de control de crucero de la aeronave,” explicó Paul Dees, jefe adjunto de propulsión de la NASA del X-59 en el Centro de Investigación de Vuelo Armstrong de la agencia en Edwards, California. “El piloto activa el control de velocidad a su velocidad actual y luego puede aumentarla o ajustarla gradualmente según sea necesario.” 
      El equipo del X-59 ya había realizado una prueba similar en el motor, pero sólo como un sistema aislado. La prueba de marzo verificó que la retención de velocidad funciona correctamente tras su integración en la aviónica de la aeronave. 
      “Necesitábamos verificar que el mantenimiento automático de velocidad funcionara no sólo dentro del propio motor, sino como parte de todo el sistema del avión,” explicó Dees. “Esta prueba confirmó que todos los componentes – software, enlaces mecánicos y leyes de control – funcionan juntos según lo previsto.” 
      El éxito de la prueba confirmó la habilidad de la aeronave para controlar la velocidad con precisión, lo cual será muy invaluable durante el vuelo. Esta capacidad aumentará la seguridad de los pilotos, permitiéndoles enfocarse en otros aspectos críticos de la operación de vuelo. 
      “El piloto va a estar muy ocupado durante el primer vuelo, asegurándose de que la aeronave sea estable y controlable,” dijo Dees. “Al tener la función del mantenimiento automático de velocidad, de reduce parte de esa carga de trabajo, lo que hace que el primer vuelo sea mucho más seguro.” 
      Inicialmente el equipo tenía planeado comprobar el mantenimiento automático de velocidad como parte de una próxima serie de pruebas en tierra donde alimentarían la aeronave con un sólido conjunto de datos para verificar su funcionalidad tanto en condiciones normales como de fallo, conocidas como pruebas de pájaro de aluminio (una estructura que se utiliza para probar los sistemas de una aeronave en un laboratorio, simulando un vuelo real). Sin embargo, el equipo se dio cuenta que había una oportunidad de probarlo antes. 
      “Fue un objetivo de oportunidad,” dijo Dees. “Nos dimos cuenta de que estábamos listos para probar el mantenimiento automático de velocidad del motor por separado mientras otros sistemas continuaban con la finalización de su software. Si podemos aprender algo antes, siempre es mejor.” 
      Con cada prueba exitosa, el equipo integrado de la NASA y Lockheed Martin acerca el X-59 al primer vuelo, y hacer historia en la aviación a través de su tecnología supersónica silenciosa. 
      Artículo Traducido por: Priscila Valdez
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      Last Updated Mar 31, 2025 EditorDede DiniusContactNicolas Cholulanicolas.h.cholula@nasa.gov Related Terms
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