By Gerald J. Moyar, Walter D. Pilkey, Barbara F. Pilkey
Track/Train Dynamics and layout: complex strategies experiences the development that has been made within the improvement and purposes of complicated analytical concepts for bettering the dynamic balance, security, and reliability of present new release rail freight motor vehicle parts and music constructions. issues lined variety from structural mechanics and rigidity research tips on how to and fabric technological know-how options for the prediction of fracture and put on in railroad functions. the character of know-how move from different program components, significantly aerospace, is taken into account, in addition to the original nature of a few railroad difficulties. This e-book is made from 26 chapters and opens with an outline of part II of the Cooperative Track-Train Dynamics software, together with its major ambitions, projects, and growth. The reader is then brought to the cutting-edge of rail analytical innovations and cost/benefit concerns linked to railways and railroad transportation. the next chapters discover physique centerplate fatigue cracking; mathematical versions for track/train dynamics; wheel and rail put on in the course of freight automobile curving; and alertness of complex tension research ideas within the layout of freight vehicle parts. the appliance of finite aspect research to the research of railroad wheel failure phenomena is additionally defined. This monograph may be an invaluable source for transportation and mechanical engineers, specially these facing railroads.
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Additional info for Track/Train Dynamics and Design. Advanced Techniques
In a 100 ton freight car with a gross rail load limit of 263,000 pounds, we must often times strain mightily to successfully achieve a lightweight of 63,000 pounds. And, in many instances, the lightweight of the car is well above that figure. Assuming a 63,000 pound lightweight, to find that the railroad is moving a tare weight equal to 24% of the car fully loaded to the gross rail load limit. This is an exceedingly high tare weight ratio which becomes even more significant if the freight car is not loaded to the rail load limit as well as the time that the car is moving empty.
Through this information, members are able to establish contact and exchange knowledge, programs and experience. The exchange is between user and originator, and the user's experience is not passed back to the committee or other members. Aerospace Structures Information and Analysis Center (ASIAC) Contact: AFDL-FBR Wright-Patterson AFB Dayton, Ohio 45433 This is an Air Force supported computational structural mechanics information center. They publish a newsletter listing current activities and meetings in the structures community.
Those are the kinds of questions that run through our minds when we are looking at multi-dollar expenditures . We have monies and we approve them in the engineering level in our company. For analysis as such, or for validation, our engineering department can make their own decisions as to whether they are going to run tests. I have made decisions myself for a quarter million, half million dollar test, and I have had some problems for making some of these decisions in the past, but they stuck. The real problem that you have is that you have to establish that you can do what you say that you can do, and then you have got to perform.