Avoiding Common Thrust Restraint Mistakes

Evaluation of Active Thrust on Retaining Walls Using DDA

Propulsion Systems for Future Space Exploration
There are many types of propulsion that are being considered for future space travel needs. These include nuclear, solar sail, magnetoplasmadynamic (MPD) thrusters, and laser propulsion...

Structural Analysis for the Student
The transition from student to practicing structural engineer can be a very 'eye-opening' experience. From the classical right-wrong classroom solutions of well-defined indeterminate structures,...

Spring-Type Thrust Bearings Can Be Monitored

Uses for Lunar Crawler Transporters
This article discusses state-of-the-art crawler transporters and expresses the need for additional research and development for lunar crawlers. The thrust of the paper illustrates how...

Developing Technologies for Lunar-Based Astronomy
The Moon is probably the best place in the inner solar system to locate a new generation of astronomical observatories. The thrust of space program planning is toward a return to the Moon...

Post-MECO Propulsion System Requirements for Placement of an STS External Tank in Low Earth Orbit
This paper discusses the findings of a series of computer simulations carried out at the National Institute of Standards and Technology to investigate the requirements for powered flight...

Trouble-Shooting Large Hydroturbine Bearings
Special problems associated with very large thrust and guide bearings and lubrication systems are presented, and cover common trouble spots, with examples. Various large hydroturbine bearing...

Influence of Surface Finish on Thrust Bearing Life
The original pivoted pad thrust bearing installed and fitted at the Holtwood Power Station in 1912 by A. Kingsbury has been operating continuously since that time without any difficulty....

Fretting Corrosion on Large Split Thrust Bearing Runners
In the early fifties interfacial slip was measured on laboratory models. Design improvements, resulting from these tests, were incorporated into later machines. These improvements appreciably...

Thrust Restraint of Buried Ductile Iron Pipe
It is the intent of this paper to present current state of the art thrust restraint design, present a basis for calculating required lengths of restraint, and to offer some practical suggestions...

The National Incinerator Testing & Evaluation Program
Environment Canada, under the National Incinerator Testing & Evaluation Program (NITEP), is addressing emissions from municipal energy-from-waste combustion systems. The main thrust...

Comparison of the Third and Fourth Edition of the Guide: What is New and Different
The fourth edition of the 'Guide to Stability Design Criteria for Metal Structures' is a unique collection of ideas and information on stability problems. It...

A Marine Thruster in Small Scale Hydropower
A 70 kW hydroelectric plant utilizing a marine thruster as a turbine was commissioned in May, 1985. The thruster, the construction management, the site conditions and the testing program...

Three Inexpensive Land Use Allocation Techniques
The current thrust in transportation planning is to make use of manual and microcomputer techniques for providing quick-response travel estimation. In this context, matching land use techniques,...

Example Analysis for Tunnel Lining

Stability Considerations in the Design of Steel Columns
Behavior and design of steel columns subjected to thrust and unequal end moments; simple interaction formula for maximum values of forces and moments is proposed which takes into account...

Columns under Combined Bending and Thrust
Interaction curves relating axial thrust, applied end bending moment, and slenderness ratio, developed for ultimate carrying capacity of pin ended, wide flange beam columns; assumed symmetrical...

Charts for Design of Reinforced Concrete Columns
Curves are presented which enable designer to immediately determine necessary size and reinforcing for given thrust and moment; curves are based on ultimate strength of column section...

 

 

 

 

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