{"id":15886,"date":"2022-08-22T12:02:26","date_gmt":"2022-08-22T16:02:26","guid":{"rendered":"https:\/\/vibrationresearch.com\/?post_type=blog&p=15886"},"modified":"2024-01-26T15:07:47","modified_gmt":"2024-01-26T20:07:47","slug":"rube-goldberg-rocketry-triggering-rocket-launch","status":"publish","type":"blog","link":"https:\/\/vibrationresearch.com\/blog\/rube-goldberg-rocketry-triggering-rocket-launch\/","title":{"rendered":"Rube Goldberg Rocketry: Triggering a Rocket Launch"},"featured_media":15897,"template":"","meta":{"_acf_changed":false,"_single_webinar_content":"","_webinar_lock":"","_webinar_author":"","_webinar_date":"","_webinar_duration":"","_webinar_hidden":"","_webinar_video_embed":"","_webinar_video_thumbnail":"","_column_content":"","_column_label":"","_column_url":"","_single_blog_intro_image":"","_single_blog_content":"
\"Rube<\/a>

Rube Goldberg cartoons “If the Soap Falls Out of the Bathtub, Try This …” and “Foolish Questions,” on page 10 of the Duluth Herald, November 18, 1921.<\/p><\/div>\n

To illustrate the Triggering settings in the ObserVIEW<\/a> software, we devised a clever Rube Goldbergesque rocket launch. While we were planning on launching a rocket for the purpose of collecting data, we also decided to devise a special trigger sequence to illustrate the ObserVR1000’s triggering capabilities<\/a>.<\/p>\n

\"an<\/a>

Figure 1. \u201cRocketman\u201d is ready for launch. It is tilted at a slight launch angle to compensate for the wind.<\/p><\/div>\n

Trigger Sequence: Software Steps<\/h3>\n
\"Triggering<\/a>

Figure 2. Triggering option in the ObserVR1000 Settings.<\/p><\/div>\n

You can add a triggering event(s) when recording data in an ObserVIEW<\/a> session running the VR Mobile application.<\/p>\n

    \n
  1. To access the Triggering feature, point to the ObserVR1000 Settings and select the three-line menu icon > Triggering<\/strong> (Figure 2).<\/li>\n
  2. To create a new trigger, select the New Trigger<\/strong> button.<\/li>\n
  3. Select the trigger event and action(s).<\/li>\n<\/ol>\n

    Triggering Sequence: Physical Setup<\/h3>\n

    To trigger the rocket’s launch, we designed a sequence of events and actions.<\/p>\n

      \n
    1. An individual struck a gong with a modal hammer (the gong\u2019s sound did not trigger the launch, but did prepare the spectators for an imminent launch.) If the force that hit the gong exceeded 60F-lbs, it would trigger the next action.<\/li>\n
    2. The event (a force on the modal hammer greater than 60F-lbs) produced an action (turning on an ObserVR1000 digital output).<\/li>\n
    3. The digital output from the ObserVR1000 tripped a relay to complete an electrical circuit, which ignited the fuse of the rocket propellant engine.<\/li>\n<\/ol>\n
      \"rocket<\/a>

      Figure 3. The triggering sequence. An individual hit a gong with a modal hammer, the ObserVR1000’s digital output tripped the relay, and the electrical circuit was completed, igniting the fuse of the rocket propellant engine.<\/p><\/div>\n

      Triggering Sequence Executed<\/h3>\n

      We conducted several launches to collect vibration data and test the ObserVR1000 triggering options. The following is a report on two of the launches for comparative purposes.<\/p>\n

      Launch Mission-C<\/h4>\n

      The force hammer needed 60F-lbs to launch. Mission-C hammer hit with 103F-lbs, successfully triggering the launch (Figure 4).<\/p>\n

      \"recorded<\/a>

      Figure 4. Launch Mission-C.<\/p><\/div>\n

      0.32 sec after exceeding the 60F-lbs event criterion, the ignition of the rocket began with a force of 32.9G on the launch pad (Figure 5).<\/p>\n

      \"recorded<\/a>

      Figure 5. Launch Mission-C.<\/p><\/div>\n

      0.63 sec after exceeding the 60F-lbs event criterion, we observed the maximum launch forces of 763G (Figure 6).<\/p>\n

      \"recorded<\/a>

      Figure 6. Launch Mission-C.<\/p><\/div>\n

      Launch Mission-N<\/h4>\n

      The first hit of the gong with a modal hammer only recorded 45.2F-lbs, which was not sufficient force to trigger the event sequence (Figure 7).<\/p>\n

      \"recorded<\/a>

      Figure 7. Launch Mission-N.<\/p><\/div>\n

      The second hit of the gong with a modal hammer recorded 154.7F-lbs, which was plenty sufficient to trigger the event sequence (Figure 8).<\/p>\n

      \"recorded<\/a>

      Figure 8. Launch Mission-N.<\/p><\/div>\n

      The ignition of the rocket propellant engine was 25.8G on the launch pad (Figure 9).<\/p>\n

      \"recorded<\/a>

      Figure 9. Launch Mission-N.<\/p><\/div>\n

      We witnessed the maximum launch forces on the launch pad at 905.7G (Figure 10).<\/p>\n

      \"recorded<\/a>

      Figure 10. Launch Mission-N.<\/p><\/div>\n","_blog_author":"Joel Minderhoud","_blog_date":"","_blog_excerpt":"","_references":"","_blog_hidden":"","_single_calculator_intro_image":"","_calculator_lock":"","_single_calculator_content":"","_single_calculator_duration":"","_single_calculator_form_markup":"","_single_calculator_javascript":"","_page_excerpt":"","_calculator_video_embed":"","_resources_video_thumbnail":"","_resource_hidden":"","_single_experiment_content":"","_experiment_lock":"","_experiment_author":"","_experiment_date":"","_single_webinar_intro_image":""},"resource_types":[],"resource_categories":[146],"class_list":["post-15886","blog","type-blog","status-publish","has-post-thumbnail","hentry","resource_categories-data-acquisition"],"acf":[],"yoast_head":"\nRube Goldberg Rocketry: Triggering a Rocket Launch - Vibration Research<\/title>\n<meta name=\"description\" content=\"The VR team designed a sequence of events and actions to trigger a rocket launch using a gong, data acquisition device, & electrical circuit.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/vibrationresearch.com\/blog\/rube-goldberg-rocketry-triggering-rocket-launch\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rube Goldberg Rocketry: Triggering a Rocket Launch - 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