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RISAn Investigation of Excitation Method for Torsional Testing of a Large-Scale Steam Turbine Generator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Presently, the “negative sequence current method” is widely used in field-testing to determine torsional vibration characteristics of steam turbine generator rotor systems. The natural frequencies ...
A Modification of Feasible Direction Optimization Method for Handling Equality Constraints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Feasible Direction Method of Zoutendijk has proven to be one of the most efficient algorithms currently available for solving nonlinear programming problems with only inequality type constraints. ...
Experimental Study on Mechanical Behavior of PBL Shear Connectors
Publisher: American Society of Civil Engineers
Abstract: Perfobond rib connectors (PBLs) are widely applied to transfer the shear force in steel-concrete composite members. To investigate the mechanical behavior of PBL shear connectors, push-out tests were carried out under ...
Hydraulic Properties of Selected Materials and Their Effects on Remediation Cr(VI) Contaminated Groundwater
Publisher: ASCE
Abstract: To find an economically feasible and directly usable natural permeable reactive barrier (PRB) filler, sponge iron was selected from seven natural materials with excellent removal efficiencies of Cr(VI). The synergism of ...
A Reverse Glue Approach to Automated Construction of Multi-Piece Molds
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Mold design can be a difficult, time-consuming process. Determining how to split a mold cavity into multiple mold pieces (e.g., core, cavity) manually can be a tedious process. This paper ...
A Region Based Method to Automated Design of Multi-Piece Molds with Application to Rapid Tooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Particularly for rapid tooling applications, delivering prototype parts with turn-around times of less than two weeks requires fast, proven mold design methods. We present a region-based approach ...
Optimized Mask Image Projection for Solid Freeform Fabrication
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Solid freeform fabrication (SFF) processes based on mask image projection have the potential to be fast and inexpensive. More and more research and commercial systems have been developed based ...
A Fast Mask Projection Stereolithography Process for Fabricating Digital Models in Minutes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The purpose of this paper is to present a direct digital manufacturing (DDM) process that is an order of magnitude faster than other DDM processes that are currently available. The developed ...
Geometric Tailoring: A Design for Manufacturing Method for Rapid Prototyping and Rapid Tooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The goal of fabricating functional prototypes quickly is hindered by a mismatch of material properties between production materials and those used in rapid prototyping (RP) machines, such as ...
Comparison of the Built Environment of Homes for the Aged in China by Postoccupancy Evaluation
Publisher: American Society of Civil Engineers
Abstract: With more than 14.9% of the current population being elderly, an aging society is a challenge for China. To accommodate the rapid increase in the aging population, it is necessary to provide sufficient and satisfactory ...