Design and calibration of dynamometer cars

[David Clark 13Participant @davidclark13]

Dynamometer cars for IMLEC

[David Clark 13Participant @davidclark13]

Hi There

This thread is all about the design, construction and calibration of dynamometer cars with particular reference to IMLEC.

Feel free to join in but please keep it on topic.

regards David

[MICHAEL WILLIAMSParticipant @michaelwilliams41215]

Never actually understood why a dynamometer car is needed . All that is to be measured is drawbar pull against time and distance .

Simple draw bar based on off the shelf load cell , transmit readings continuously to trackside base station by off the shelf data transmitter , monitor position of train on track by a small number of active or passive trackside detectors . Could even use GPS in some cases .

Put the above data into a PC and obtain the transient and final values of everything in instant graphical form .

Add in the coal and water used etc at end of run and get instant analysis of efficiency and any subsidiary analysis required .

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