ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    A theoretical basis for mechanical impedance simulation in shock and vibration testing of one-dimensional systems (1963)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Feasibility of mechanical impedance control and simulation in shock and vibration testing of one-dimensional structures
    Keywords: STRUCTURAL MECHANICS
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    A theoretical basis for mechanical impedance simulation in shock and vibration testing (1964)
    In:  Other Sources
    Details
    Publication Date: 2011-08-10
    Description: Mechanical impedance simulation in shock and vibration testing
    Keywords: PHYSICS, GENERAL
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 3
    facet.materialart.
    Unknown
    Comparison of NASTRAN and STARDYNE static analysis of a graphite fiber reinforced plastic truss structure (1972)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: A static and buckling analysis of the ATS-F&G spacecraft reflector support truss (RST) and bridge truss assembly using NASTRAN was conducted. The RST is fabricated from a new material, graphite fiber reinforced plastic. A comparison is made with the NASTRAN results and the results of a similar analysis conducted using the stardyne program. The results of an actual static load test are also compared.
    Keywords: STRUCTURAL MECHANICS
    Type: NASTRAN: Users' Experiences e; p 303-314
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 4
    facet.materialart.
    Unknown
    Development of baseline random vibration environment criteria for Shuttle pallet payload subsystems (1984)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: This paper presents a statistical evaluation of measured random vibration response data obtained from the Office of Space Science-1 (OSS-1) pallet payload. The data were measured during the acoustic test simulation (September 1980) and the ascent phase of the flight of STS-3, Orbiter 102 (launched from the Kennedy Space Center on March 22, 1982). Acoustic test efficiency factors are evaluated based on the Dynamic, Acoustic and Thermal Environments (DATE) instrumentation as the source of the measured vibration data. Test efficiency correction to test data is applied in the extrapolation of non-DATE acoustic test data to increase sample population size for improved statistical evaluation. For baseline criteria evaluation and development, data are grouped in accordance with the payload zone in which the component is mounted.
    Keywords: SPACE TRANSPORTATION
    Type: NASA-TM-86087 , NAS 1.15:86087
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 5
    facet.materialart.
    Unknown
    Evaluation of Space Transportation System (STS) OV-102 orbiter payload bay acoustic environment (1982)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: This report presents the results of a statistical analysis and evaluation performed by the Mechanical Engineering Branch (Code 731) on the payload bay internal acoustic data measured on the STS-1 through STS-4 flights. The results are used as a basis for developing the required baseline acoustic environment specification to be used in establishing design and test criteria for STS payloads and components.
    Keywords: SPACE TRANSPORTATION
    Type: NASA-TM-84958 , NAS 1.15:84958
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 6
    facet.materialart.
    Unknown
    An experimental investigation of noise attenuating techniques for space-shuttle canisters (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: A model of the space shuttle thermal canister was acoustically tested to determine the amount of noise attenuation which could be derived using a simple, single-wall canister construction having rectangular shape. Acoustic testing was performed on the basic canister and with noise-attenuating design modifications. The basic canister experienced noise amplifications at 56 and 80 Hz, which are attributed to the fundamental canister acoustic mode and local panel structural resonances, respectively. The standing wave response at 56 Hz was effectively suppressed by the incorporation of a cardboard baffle midway between the canister end-caps (an additional overall noise reduction of 4 dB). The canister was next tested with 14%, 22.5% and 31% sound absorptive coverages on the interior walls. The coverage was effective between 400-3000 Hz; the maximum benefit (9 dB) occurring at 1600 Hz. Viscoelastic damping strips bonded to the canister exterior provided an additional 4 to 5 dB attenuation over much of the frequency range and has an overall reduction of about 10 dB as compared to 4.4 dB without damping. A significant reduction of the resonant effect at 80 Hz was noted.
    Keywords: SPACE TRANSPORTATION
    Type: Shock and Vibration Inform. Center The Shock and Vibration Bull., No. 50, Part 4; p 77-90
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 7
    facet.materialart.
    Unknown
    Development of a vibroacoustic data base management and prediction system for payloads (1982)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A data base management and prediction system called vibroacoustic payload environment prediction system (VAPEPS) was developed to serve as a repository for shuttle or extendable booster payload component flight and ground test data. This system is to be made available to the aerospace community for multiple uses including that of establishing the vibroacoustic environment for new payload components. The VAPEPS data includes that spectral information normally processed from vibration and acoustic measurements (e.g., power spectra, sound pressure level spectra, etc.). Results of development to provide this capability by NASA Goddard Space Flight Center and Lockheed Missiles and Space Company are described.
    Keywords: DOCUMENTATION AND INFORMATION SCIENCE
    Type: Shock and Vibration Inform. Center The Shock and Vibration Bull., No. 52. Part 2; p 53-64
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 8
    facet.materialart.
    Unknown
    Comparative evaluation of Space Transportation System (STS)-3 flight and acoustic test random vibration response of the OSS-1 payload (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A comparative evaluation of the Space Transportation System (STS)-3 flight and acoustic test random vibration response of the Office of Space Science-1 (OSS-1) payload is presented. The results provide insight into the characteristics of vibroacoustic response of pallet payload components in the payload bay during STS flights.
    Keywords: SPACE TRANSPORTATION
    Type: NASA-TM-85089 , NAS 1.15:85089
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 9
    facet.materialart.
    Unknown
    Mechanical impedance analysis for lumped parameter multi-degree of freedom/multi- dimensional systems (1967)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Mechanical impedance effects on dynamic response of multi-degree of freedom/multi-dimensional linear systems
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-TN-D-3865
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 10
    facet.materialart.
    Unknown
    Comparative evaluation of predicted and measured performance of a 68-cubic meter truncated reverberant noise chamber (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The performance of a medium size, truncated reverberation chamber is evaluated in detail. Chamber performance parameters are predicted, using classical acoustic theory, and are compared to results from actual chamber measurements. Discrepancies are discussed in relation to several available empirical corrections developed by other researchers. Of more practical interest is the confirmation of a recent theory stating that the present guide for the ratio of specimen volume to test chamber volume, approximately 10 percent, is overly conservative, and can be increased by a factor of at least 2 and possibly 3. Results and theoretical justification of these findings are presented.
    Keywords: RESEARCH AND SUPPORT FACILITIES (AIR)
    Type: NASA-TN-D-7755 , G-7434
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...