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Wednesday, August 5, 2020 | History

1 edition of FY 75 experimental hydraulic ram studies found in the catalog.

FY 75 experimental hydraulic ram studies

Howard Leon Power

FY 75 experimental hydraulic ram studies

by Howard Leon Power

  • 327 Want to read
  • 15 Currently reading

Published by Naval Postgraduate School in Monterey, Calif .
Written in English

    Subjects:
  • Hydraulic rams,
  • Fuel tanks,
  • Combat survivability,
  • Military Airplanes,
  • Airplanes,
  • Design and construction

  • About the Edition

    This document is a report on the progress of FY 75 experimental Hydraulic Ram Studies. The shock and drag phases of hydraulic ram were studied to understand this complicated phenomenum. (Author)

    Edition Notes

    Other titlesFiscal Year 1975 experimental hydraulic ram studies
    Statement[by] H.L. Power
    ContributionsNaval Postgraduate School (U.S.)
    The Physical Object
    PaginationPAGINATION :
    ID Numbers
    Open LibraryOL25514498M
    OCLC/WorldCa428452649

    Department of the Army Historical Summary: FY X. Research, Development, and Acquisition. Budget and Management. The fiscal year Department of Defense Appropriations Act, passed in October , provided $1, million in research, development, test, and evaluation (RDTE) funding. This research consists of predicting the performance and efficiency of hydraulic pumps and motors, both with experiments and modeling. A pump and motor test stand is con-structed to measure the efficiency of an axial piston swashplate pump/motor unit. A regenerative loop hydraulic system is used to reduce the power requirements of the test stand.

      a, Map and cross-section of the Zuccale fault (ZF) as exposed on the Isle of Elba, Central Zuccale fault is an exhumed, ancient low-angle normal fault belonging to the Apenninic system Cited by:   Vascular plants transport water under negative pressure without constantly creating gas bubbles that would disable their hydraulic systems. Attempts to replicate this feat in artificial systems almost invariably result in bubble formation, except under highly controlled conditions with pure water and only hydrophilic surfaces present. In theory, conditions in the xylem should favor bubble Cited by:

    TR13 New Developments in Hydraulic Ram Pumping 2 This technical release has been written more for ram pump enthusiasts, researchers and manufacturers than for installers and users. It describes the main current trends in system and pump design. 1 GENERAL TRENDS The ram pump is a 'mature' technology. Over the last. In the final chapter of his book, “Some Reflections and Suggestions,” Whitehouse insists upon the need of a broader, “much more elastic, much more experimental” (op. cit.: 75) curriculum, including manual exercises, drawing, and physical also urges educators to work to prevent “a stereotyped system of examinations from controlling the curriculum of schools” (op. cit.:


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FY 75 experimental hydraulic ram studies by Howard Leon Power Download PDF EPUB FB2

FY 75 experimental hydraulic ram studies Item Preview remove-circle some content may be lost due to the binding of the book. Addeddate Call number ocn Camera Canon EOS 5D Mark II Contributor_corporate Naval Postgraduate School (U.S.) Description_sponsorshipPages: FY 75 experimental hydraulic ram studies.

By Howard Leon Power. Download PDF (2 MB) Abstract. This document is a report on the progress of FY 75 experimental Hydraulic Ram Studies. The shock and drag phases of hydraulic ram were studied to understand this complicated ted by the Naval Weapons Center, China Lake, Californiahttp Author: Howard Leon Power.

Experimental hydraulic ram studies (FY 74) Power, H. Abstract. The document is a report on the progress of FY74 experimental hydraulic ram studies. Penetration, shock, and drag phases of hydraulic ram were studied to understand this complicated phenomenon.

Publication: Final Report. Pub Date: August One of the pressure gauges (PTn) was located near the impact point at 30 mm from the wall and 75 mm from the shot line, while the other (PTf) was in the middle of the tube at mm from the projectile trajectory and measured the pressure in a point far from the impact zone (Fig.

4).Cited by: In those studies, researchers were particularly interested in evaluating damage mechanisms caused by hydraulic rams. A hydraulic ram combines a number of events, as illustrated schematically in Fig. (1) When the projectile enters the tank, the tank wall may crack due to the high pressure and stresses near the entry point, and (2) a shock wave is by: Full text of "Experimental investigation of hydraulic other formats EXPERIMENTAL INVESTIGATION OF HYDRAULIC RAM Larry Scott Mueller LiDrary Naval Postgraduate School Monterey, California Monterey, California T EXPERIMENTAL INVESTIGATION OF HYDRAULIC RAM by Larry Scott Mueller Thesis Advisor: Allen E.

Fuhs March Appiov&d ^on. public >. The average efficiency was from to % for the hydraulic ram of ¾ in and from to % for the hydraulic ram of 1 in. Thus, the option of a hydraulic ram size of 1 in, combined. The main parameters to be considered in designing a hydraulic ram include: 1) The difference in height between the water source and pump site (called vertical fall).

2) The difference in the height between the pump site and the paint of storage or use (life). 3) The quantity (Q) of flow available from the Size: KB.

A hydraulic ram (also called hydram) is a pump that uses energy from a falling quantity of water to pump some of it to an elevation much higher than the original level at the source. No other energy is required and as long as there is a continuous flow of falling water, the pump will.

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This document is a report on the progress of FY 73 Hydraulic Ram studies. Preliminary analytical and experimental studies of the shock and cavity phases of hydraulic ram have been made to add to basic understanding of the fluidstructural interactions.

This work should contribute to the understanding of the hydraulic ram phenomenon and will. Keywords: Hydraulic Ram Pump, Computational Fluid Dynamic (CFD), Waste Valve, Enhancement _____ I. INTRODUCTION An analysis of Hydraulic ram pump presents some of the most challenging problems faced by engineers in domestic use, agriculture use, industry use, because simulations need to address the moving parts in an appropriate Size: 2MB.

Title: Hydraulic Rams - Transporter Created Date: Z. Content may be subject to copyright. Basic components of a hydraulic ram: 1. Inlet – drive pipe 2. Free flow at waste valve 3. Outlet – delivery pipe 4. Hydram Modern Design Efficiency: A typical energy efficiency is 60%, but up to 80% is possible.

This should not be confused with the volumetric efficiency. Find interactive solution manuals to the most popular college math, physics, science, and engineering textbooks. No printed PDFs. Take your solutions with you on the go. Learn one step at a time with our interactive player.

High quality content provided by Chegg Experts. Ask our experts any homework question. Get answers in as little as 30 minutes. 1 Literature Review and Problem Statement feedforward is successfully implemented. Experimental tests under a variety of conditions such as system mass, input type (step, multisteps or ramp) and flow control settings (on and wide open) were applied.

The result was a fast, accurate and inexpensive position-controlled pneumaticFile Size: KB. We review the current status of experimental studies in India to understand the linkages between afforestation and hydrology. This discipline deals with the use and management of water, social awareness of environmental problems, and ecosystem limitations on provision of watershed services by river basins in the mountain regions of India.

Our review begins with examination of experimental Cited by: 5. A peer-reviewed journal that reports on the analyses and solutions of problems in hydraulic engineering, hydrology, and water resources, emphasizing concepts, methods, techniques, and results that advance knowledge or are suitable for general application and use in topical areas ranging from environmental fluid dynamics to flows in close conduits to free-surface flows (canals, rivers, lakes.

The automatic hydraulic ram: Its theory and design (American Society of Mechanical Engineers. Paper) [Krol, J] on *FREE* shipping on qualifying offers. The automatic hydraulic ram: Its theory and design (American Society of Mechanical Engineers.

Paper)Author: J Krol. The aim of the present study was to determine the aggressiveness of groundwater samples towards corrosion of various commercially important metals and to study the correlation between theoretical and experimental values of corrosiveness.

For this purpose, 20 groundwater samples were collected in different mandals of Krishna District, Andhra Pradesh, India, and the metals selected were Cited by: 3. John Whitehurst FRS (10 April – 18 February ), born in Cheshire, England, was a clockmaker and scientist, and made significant early contributions to .Improved water coverage from better land leveling reduces weeds by up to 40%.

This reduction in weeds results in less time for crop weeding. A reduction from 21 to 5 labor- days/ha is achieved. This represents a reduction of up to 16 person-days per hectare – a 75 File Size: 1MB. The initial comonomer composition was,and for PyNSE and Py, respectively.

These coatings are abbreviated as PPyNSE x where x stands for the initial molar fraction of PPyNSE (x = 0, 25, 50, 75 or ). By varying these ratios, the effect on the surface morphology and chemical composition of the coating was Cited by: