Download or read book Comparison tools for assessing the microgravity environment of missions carriers and conditions written by Richard DeLombard and published by . This book was released on 1997 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison Tools for Assessing the Microgravity Environment of Missions Carriers and Conditions written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-24 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Principal Component Spectral Analysis and the Quasi-steady Three-dimensional Histogram techniques provide the means to describe the microgravity acceleration environment of an entire mission on a single plot. This allows a straight forward comparison of the microgravity environment between missions, carriers, and conditions. As shown in this report, the PCSA and QTH techniques bring both the range and median of the microgravity environment onto a single page for an entire mission or another time period or condition of interest. These single pages may then be used to compare similar analyses of other missions, time periods or conditions. The PCSA plot is based on the frequency distribution of the vibrational energy and is normally used for an acceleration data set containing frequencies above the lowest natural frequencies of the vehicle. The QTH plot is based on the direction and magnitude of the acceleration and is normally used for acceleration data sets with frequency content less than 0.1 Hz. Various operating conditions are made evident by using PCSA and QTH plots. Equipment operating either full or part time with sufficient magnitude to be considered a disturbance is very evident as well as equipment contributing to the background acceleration environment. A source's magnitude and/or frequency variability is also evident by the source's appearance on a PCSA plot. The PCSA and QTH techniques are valuable tools for extracting useful information from acceleration data taken over large spans of time. This report shows that these techniques provide a tool for comparison between different sets of microgravity acceleration data, for example different missions, different activities within a mission, and/or different attitudes within a mission. These techniques, as well as others, may be employed in order to derive useful information from acceleration data. DeLombard, Richard and McPherson, Kevin and Moskowitz, Milton and Hrovat, Ken Glenn Research Center NAS3-2725...

Download or read book Comparison Tools For Assessing The Microgravity Environment Of Missions Carriers And Conditions NASA TM 107446 May 30 1997 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1998* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison Tools for Assessing the Microgravity Environment of Missions Carriers and Conditions written by and published by . This book was released on 1997 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book COMPARISON TOOLS FOR ASSESSING THE MICROGRAVITY ENVIRONMENT OF ORBITAL MISSIONS CARRIERS AND CONDITIONS NASA TM 1999 209048 JUL 9 written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Microgravity Environment Description Handbook written by and published by . This book was released on 1997 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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