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DESIGN ACCELERATIONS FOR THE ARMY'S EXCALIBUR

DESIGN ACCELERATIONS FOR THE ARMY

Excalibur curves. Cordes, Vega, Carlucci, and Chaplin (ref. 8) reported the accelerations and correlated pressures for dozens of live-fire tests of Excalibur. This paper presents the recorded acceleration data for 10 PMP +5% loads for Excalibur. The data is used by the Army for design of the 155-mm Excalibur. METHOD, GUN FIRINGS

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2013 EERI SEISMIC DESIGN COMPETITION

2013 EERI SEISMIC DESIGN COMPETITION

and shake testing of a 5' tall, 15" square balsa wood tower. The project focuses on multiple load path design along with SAP based structural analysis of historical and designer based earthquake time series. The structures are tested on a shake table that records deflections and accelerations at the top and bottom of the tower. In the past three years, the UMass seismic design team has grown ...

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Design Considerations Using The ANSI/TIA-222-Rev G Standard

Design Considerations Using The ANSI/TIA-222-Rev G Standard

Design Considerations Using The ANSI/TIA-222-Rev G Standard The Rev G TIA Standard contains new parameters that significantly affect the magnitude of wind, ice and earthquake loading. In addition to specifying the location of a structure for determining the basic wind speed, design ice thickness and earthquake accelerations, it is important to consider these new parameters for the design of ...

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Classification Rules: safety requirements & special risk ...

Classification Rules: safety requirements & special risk ...

Provide protection against spillages/leakages ... z Resistance to ship accelerations and shocks (collision) z Tankpressurecontrolandboil-offgasmanagement Design of portable LNG storage tanks and equipment Tank pressure control and boil off gas management z Partial filling levels z Discharge capacity of the safety valves z Vacuum-insulated tanks : consequences of a failure of the external shell ...

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Structures Bulletin - Dayton Aerospace

Structures Bulletin - Dayton Aerospace

accelerations are covered by Crew Systems engineering (ASC/ENFC) in JSSG-2010 (Reference 2), but are also addressed in JSSG-2006 to assure the backup structure is properly sized for reacting the loads imparted during use. The final seat design must incorporate structural crash requirements with those of the crew restraint to provide a "crashworthy" seat where an occupant - will have the best ...

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Assessment of the performance of the mechatronic ...

Assessment of the performance of the mechatronic ...

body of the actuator and the mechanical ”ground” (for servo loop design, helicopter accelerations are usually neglected). The servomechanism is controlled with a cascade regulator structure closing ?rst an inner valve loop with a PID-ISA controller (80 Hz bandwidth), which acts (at least at low 1. Figure 1: Leakage ?ow, ?ow gain and pressure sensitivity of the proportional valve ...

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Database-Assisted Design of High-Rise Reinforced Concrete ...

Database-Assisted Design of High-Rise Reinforced Concrete ...

ficient number of mean speed directions, and (b) a preliminary design of the building, it is possi-ble to calculate response databases for the demand-to-capacity indexes, inter-story drift, and top floor accelerations, that is, databases of responses induced by wind with any specified speed and direction. These responses are functions of the building’s aerodynamic, geometric, structural, and ...

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Design Considerations Using The ANSI/TIA-222-Rev G Standard

Design Considerations Using The ANSI/TIA-222-Rev G Standard

Design Considerations Using The ANSI/TIA-222-Rev G Standard The Rev G TIA Standard contains new parameters that significantly affect the magnitude of wind, ice and earthquake loading. In addition to specifying the location of a structure for determining the basic wind speed, design ice thickness and earthquake accelerations, it is important to consider these new parameters for the design of ...

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Distributed Electric Propulsion (DEP) Aircraft

Distributed Electric Propulsion (DEP) Aircraft

Freedom in aircraft design. • High technology accelerations exist across the battery, motor, controller markets. – Batteries have achieved an average rate of improvement in energy density of ~8% per year over the past 30 years. Current available cells are ~250 Whr/kg at 2C ratings. – Electric motors are currently being tested at 4-6 hp/lb specific power with 95% to 97% efficiency ...

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Service Limit State Design for Bridges - AASHTO

Service Limit State Design for Bridges - AASHTO

AASHTO LRFD • Humans do not feel deflections, they feel the accelerations associated with the deflections and vibrations. • Deflection limits were first used by railroads, then found their way to highway design. • AASHTO limits on deflections are a fraction of the span length. 233 . LL-Deflections – Service l • Recommending consideration of the Canadian Code (CHBDC) criteria with ...

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Seismic Response Characteristics of Earth and Rockfill Dams

Seismic Response Characteristics of Earth and Rockfill Dams

engineering properties for dam design and safety evaluation after earthquake. An extensive review of case histories of earth and rockfill dam behaviour during earthquake was undertaken in this study. The peak crest accelerations and peak ground accelerations from 43 case histories were summarized. Results from finite element analyses of 6 typical dams and 12 practical projects of modern high ...

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