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Thursday, May 7, 2020 | History

3 edition of Evaluation of the ride quality of a light twin-engine airplane by means of a ride quality meter found in the catalog.

Evaluation of the ride quality of a light twin-engine airplane by means of a ride quality meter

Evaluation of the ride quality of a light twin-engine airplane by means of a ride quality meter

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Published by National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, For sale by the National Technical Information Service, distributor] in [Washington, D.C.], [Springfield, Va .
Written in

    Subjects:
  • Aircraft compartments.,
  • Aircraft noise.,
  • Noise tolerance.,
  • Sound transmission.,
  • Vibration.

  • Edition Notes

    StatementEric C. Stewart.
    SeriesNASA technical paper -- 2913.
    ContributionsUnited States. National Aeronautics and Space Administration. Scientific and Technical Information Division.
    The Physical Object
    FormatMicroform
    Pagination24 p.
    Number of Pages24
    ID Numbers
    Open LibraryOL15407138M

    The quality is very good. I brought this for my Honda Pilot Touring and it fit perfectly in the car. I am really happy because this will keep my car clean inside.   Scientists use smartphones to measure train ride comfort Posted on 13 Feb Share this page. Share on Twitter Share on facebook Share on linkedin Share on email. Passengers could soon be using their mobile phones to help rail companies around the globe improve the ride quality on their trains, thanks to new research.

    Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium word comes from Latin vibrationem ("shaking, brandishing"). The oscillations may be periodic, such as the motion of a pendulum—or random, such as the movement of a tire on a gravel road.. Vibration can be desirable: for example, the motion of a tuning fork, the reed in a woodwind instrument or. Vibration comfort is an important factor affecting the quality of service (QoS) of bus. In order to make people involved in supervising bus’s vibration comfort and improve passengers’ riding experience, a novel mode of passenger crowdsourcing is introduced. In this paper, comfort degree of bus vibration is calculated from bus’s vibration signals collected by passengers&#x Cited by: 4.

    Fixed air quality stations have limitations when used to assess people's real life exposure to air pollutants. Their spatial coverage is too limited to capture the spatial variability in, e.g., an urban or industrial environment. Complementary mobile air quality measurements can be used as an additional tool to fill this by: Ride comfort is now defined in international standards such as UIC13 and ISO The Korean standards such as KSR mainly address physical parameters such as vibration and noise. In the area of ride comfort, living quality parameter techniques have recently been considered in Cited by: 2.


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Evaluation of the ride quality of a light twin-engine airplane by means of a ride quality meter Download PDF EPUB FB2

Evaluation of the ride quality of a light twin-engine airplane by means of a ride quality meter. [Eric C Stewart; United States.

National Aeronautics and Space Administration. Evaluation of the ride quality of a light twin-engine airplane by means of a ride quality meter / By Eric C. Stewart. Abstract. Aircraft cabins. Publisher: Washington, D.C.: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; Springfield, Va.: For sale by the National Author: Eric C.

Stewart. Evaluation of the ride quality of a light twin-engine airplane by means of a ride quality meter / (Washington, D.C.: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; Springfield, Va.

Detailed Analysis of Ride Quality. With the help of the user-friendly LiKoS Mini Recorders you are able to record several vibrations and oscillations in all three spatial directions (3D measurement).

Compared to other measuring systems, our analysis is not limited to the cabin only but also includes further elevator components such as. the connected ride quality expression. RIDE QUALITY AND ROAD ROUGHNESS As a property of a road surface, the roughness is defined as the vertical variation of the distance of real points of the pavement from an ideal reference plane.

The pavement roughness is able to influence various functional and operational aspects of the road. passenger comfort, or the ride quality required to assure passenger acceptance.

Extended periods of low-altitude flight with STOL aircraft or lengthy trips on high-speed trains over unimproved track have revealed that ride-quality considerations are of major importance for such systems.

However, very little quantitative or descriptive informa­. Full text of "Flight evaluation of an advanced technology light twin-engine airplane (ATLIT)" See other formats.

A ride quality meter was used to establish the baseline ride quality of a light twin-engine airplane planned for use as a test bed for an experimental gust alleviation system. The purpose of this research is e thdetermination of PT stability derivatives and the assessment of its flight qualities through the application of parameter estimation techniques.

The selected airplane is a very light, twin-engine, propeller aircraft, with a maximum take-off weight of Size: 1MB.

Evaluation of Ride Quality There are various factors which have an influence on ride quality, but the index of the ride quality depends on individuals. About the railroad carriage, various research about the evaluation of the ride comfort with respect to the frequency of vibrations in vertical and horizontal directions have been reported in File Size: 1MB.

6 Objective Measures for Ride Evaluation. Utilizing a reference vehicle can be taken one step further to a method. called the couple-by-couple method, used by Zong et al. in [23] to. evaluate vehicle handling stability. As the level of the fluid decreases, the length of the chamber increases causing the wavelength to increase.

since freq is inversely proportional to wavelength the freq will decrease and so the pitch will decrease. (11) An airplane mechanic notices that the sound from a twin-engine aircraft. The judges give each light in the test a rating out of ten relative to the control. Lights are displayed in their most visible flashing mode.

The most visible flashing mode for each light is determined by Ride On staff. Where a light does not have a flash rate, the light.

Title Ride Quality and Drivability of a Typical Passenger Car subject to Engine/Driveline and Road Non-uniformities Excitations Författare Neda Nickmehr Author Sammanfattning Abstract The aim of this work is to evaluate ride quality of a typical passenger car.

This. A method that is applied for both calculating the ride quality and ride comfort to the railway vehicles is the Ride Index Wz method. Sperling [14, 15] was the one to introduce this method in Germany in the mid of last century and it was later used by other railway.

Abstract. The purpose of this chapter is to describe the main aspects of the methods being used for assessing aircraft handling qualities.

The importance of good handling qualities appears from the fact that, throughout the development of the aircraft, success has been achieved by those who blended at least two ingredients: maximum performance and adequate handling : H. Mooij.

A New Ride Quality Meter An overview of the development of a NASA ride comfort model is presented. A new instrument is described, the Ride Quality Meter, which incorporates the NASA-developed model to characterize ride comfort based upon measurement of vehicle interior noise and by: 3.

Twin engine aircraft are still the backbone of the corporate transportation world. The Beechcraft King Air is emblematic of what "makes business work" in the US.

To "fly corporate" you still need to obtain a multi-engine rating and build that "twin time." After the piston comes the jet and most of these seem to have.

The checkrides have many completely different tasks. For example, the single-engine CFI ride requires things like chandelles, lazy 8's, power-off degree precision landings and engine failure scenarios, and requires a single-engine aircraft.

The multi-engine ride, of course, mostly stresses one-engine-inoperative tasks. Ride quality and structural adequacy are key pavement performance indicators. The relationship between these indicators has been a topic of frequent and continuing discussion in the pavement.

The book “Be Our Guest” expounds on the critical nature of the customer experience process at Disney: Think of process as a railroad engine. If the engine does not run properly, it does not matter how friendly the conductor acts or how attractive the passenger cars look, the train will still not move and the passengers will not pay their fares.Analytical methods and design implications of deterministic ride quality criteria.

Final report. (), by J. K. Hedrick, R. C. White, and H. Firouztash (page images at HathiTrust) Analytical modeling of heat pump units as a design aid and for performance prediction / (), by Jack Edwin Flower (page images at HathiTrust; US access only).In a light, twin-engine airplane with one engine inoperative when is it acceptable to allow the ball of a slip-skid indicator to be deflected outside the reference lines?

When operating at any airspeed of Vmc or greater with only enough deflection to zero the side slip.