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  • MACHINERY  (3)
  • AIRCRAFT  (1)
  • MECHANICAL ENGINEERING  (1)
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  • 1
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    Unknown
    In:  Other Sources
    Publication Date: 2019-06-28
    Description: Technical paper notes systems engineering principles applied to development of electric and hybrid vehicles such that system performance requirements support overall program goal of reduced petroleum consumption. Paper discusses iterative design approach dictated by systems analyses. In addition to obvious peformance parameters of range, acceleration rate, and energy consumption, systems engineering also considers such major factors as cost, safety, reliability, comfort, necessary supporting infrastructure, and availability of materials.
    Keywords: MACHINERY
    Type: NPO-15871 , NASA Tech Briefs (ISSN 0145-319X); 9; 4; P. 159
    Format: text
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  • 2
    Publication Date: 2019-06-28
    Description: Report describes total system testing and evaluation of electrically powered automobile.
    Keywords: MACHINERY
    Type: NPO-15660 , NASA Tech Briefs (ISSN 0145-319X); 8; 3; P. 401
    Format: text
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  • 3
    facet.materialart.
    Unknown
    In:  Other Sources
    Publication Date: 2019-06-28
    Description: Guidebook discusses design of road vehicles to reduce aerodynamic drag. Book presents strategy for integrating aerodynamic design into vehicle design. Book written for readers lacking experience in aerodynamics.
    Keywords: MACHINERY
    Type: NPO-15474 , NASA Tech Briefs (ISSN 0145-319X); 8; 3; P. 400
    Format: text
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  • 4
    Publication Date: 2019-06-27
    Description: Hand calculation procedures for predicting aerodynamic noise from propellers, rotors, and lift fans
    Keywords: AIRCRAFT
    Type: NASA-CR-107568 , JPL-TR-32-1462
    Format: application/pdf
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  • 5
    Publication Date: 2019-07-13
    Description: In order to evaluate properly the consequences of replacing conventional Otto-cycle engines with alternate power systems, comparisons must be carried out at the vehicle level with functionally equivalent cars. This paper presents the development and application of a procedure for establishing equivalent vehicles. A systematic weight propagation methodology, based on detailed weight breakdowns and influence factors, yields the vehicle weight impacts due to changes in engine weight and power. Performance-matching criteria, utilizing a vehicle simulation program, are then employed to establish Otto-engine-equivalent vehicles, whose characteristics can form the basis for alternative engine evaluations.
    Keywords: MECHANICAL ENGINEERING
    Type: SAE PAPER 780348 , Congress and Exposition; Feb 27, 1978 - Mar 03, 1978; Detroit, MI
    Format: text
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