Hydraulic Hammer Drilling Technology: Developments and Capabilities

Structure Parameters Optimization Analysis of Hydraulic Hammer System

In order to improve the impact performance, the structure of hydraulic hammer should be optimized. In this paper, the ranges of eight vital structure parameters of piston and reversing valve system of hydraulic hammer were selected firstly; and then found the best value of different parameters under experiments with the method of computer optimization and the parametric analysis method provided...

New Drilling Technology

Cunningham is vice president in charge of the regional section of the Atlanta Fed's research department. Mancuso is an analyst in the regional section. They thank Jimmy Stone of Stone Energy, David Guidry of Guico Machine Works, and Frank King and Will Roberds for insightful discussion and comments. Shocks are mostly of concern when the potential outcome is bad. The most infamous example of a n...

Trends and Current Developments in Hydraulic Engineering2.PDF

The information revolution has led to profound changes in hydraulic engineering. Many of these changes are enabled through developments in hydroinformatics. This paper summarizes key elements of hydroinformatics, and it provides examples of projects that have benefited from the new developments. Future hydraulic engineering challenges include the development of more effective means of engaging ...

Machining Technology Developments

Development, Capabilities and Technology – an Evaluative Framework

In this paper we present a framework to be used for evaluation of Information and Communication Technology for Development (ICT4D) projects. The framework is based on Sen ́s notion of development as freedom where human capabilities and functionings are seen as key aspects to development. Sen ́s capability approach presents an alternative way of seeing and evaluating development (alternative to mo...