INDIAN RAILWAYS-RAIL DIBBA’s-CARRIAGES and WAGONS(C&W)
.
There is absolutely no doubt in saying that ICF coaches have been the backbone to the back bone of India-The Indian Railways. They have effortlessly (not in all cases) hauled tens of billions of people relentlessly every year. To know further about ICF,LHB or even locos for that matter we need to be clear on what a few terms mean, where are those parts located and what is their use. I am sure most of us here in IRI must be familiar about them but my idea...
more... is to share knowledge to people who don’t know about them yet. So here we go with what I think would be a detailed understanding (might go kaput too, Technical writing in freestyle is not easy):
.
We daily see a lot of trains zipping past at full speed, be it directly or through videos of Harris Kiran or the vast multitude of highly passionate and talented people here. Anyway, the point is when the train is moving fast, like really fast is there any stress? If there is stress where is it concentrated? And why stress needs to be relieved?
.
Well, technically speaking there are lot of shocks and stress acting on the train while it is moving (varies with speed, curves, gradients, Tractive effort, deceleration and other small factors), this stress is exerted on it from all three axes-vertical, longitudinal and lateral. Our idea is to successfully relieve all stresses on the coach to the rail while it is continuously in contact while in motion. But merely being in contact with the rail doesn’t mean the stresses would be relieved through the wheels to the rail. Hence the arrangement of the wheels, axles, buffers, Bolsters, Primary and secondary suspensions, Bearing arrangement and a strong frame. If the stress is not relieved or not equally distributed there are two major results.
.
1. Ride Index would go Higher
2. Axles may go Hot, frame may give away, more frequent IOH/POH intervals-Basically safety concern.
.
TO BE CONTINUED…