Response of a Linear Damped Dynamic System to Selected Acceleration Inputs. Amrl-tr-65-40.

Analytical Study of Dynamic Response of Railway on Partial Elastic Foundation under Travelling Accelerating Concentrated Load

The dynamic response of the railway under accelerated moving load using Dynamic Green Function is presented in this paper. For this purpose, an exact and direct modeling technique is introduced for the railway modeling as the damped Euler-Bernoulli beam on the partial Winkler foundation with arbitrary boundary conditions subjected to the moving load. The effects of the elastic coefficient of Wi...

Seismic Design of Steel Structures Based on Ductility and Incremental Nonlinear Dynamic Analysis

In this paper a simple tool for seismic design of steel structures for a selected ductility level is presented. For this purpose, a consistent set of earthquakes is selected and sorted based on the maximum acceleration of ground surface. The selected records are applied as the base motion to a single-degree-of-freedom system with strain hardening and the maximum response acceleration is determi...

Electron microscopic and morphometric study of rats exposed to 98.5 percent oxygen at atmospheric pressure. AMRL-TR-65-66.

Research on a Waste System for Aerospace Stations. Techn Docum Rep No. Amrl-tdr-64-33.

An engineering evaluation was conducted to select an optimum waste management system for collection, storage, and/or disposal of feces and ur'ine in a space station under weightless conditions.^ Based on this study, a detailed design of an optimum waste manage^) ment system was prepared for a 7-man, 15-day mission. Tests perfomed on a breadboard model of the feces collector demonstrated the fea...

The effect of repetitive feedings on the acceptability of selected metabolic diets. AMRL-TR-66-75.

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