Chassis kits for CSB

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Alan Turner
Posts: 556
Joined: Sun Jul 20, 2008 4:24 pm

Re: Chassis kits for CSB

Postby Alan Turner » Tue Sep 03, 2019 7:03 am

I haven't got time to modify my spreadsheet to enable imposed deflections on individual wheels. However whether the deflection is imposed on a CSB, individual sprung or compensation beam chassis the effect will be the same. There will be a transfer of load to the deflected wheel, which naturally causes a reduction (or increase - depends on the whether the imposed deflection is positive or negative) from adjacent wheels as that is where the load has come from.

There is very little difference between the performance of a CSB and individual springs in this regard as the rigidity of the chassis imposes its will on to the springs. With compensation beams then they can be designed to result in a different load distribution. For example if the first and third axles were linked by a beam they would carry all the weight and the centre axle (if free to move) would carry none. If it were ridged then the chassis would rock on it with the centre axle carrying most (if not all) the weight and the chassis see-sawing on the centre axle.




Re: Chassis kits for CSB

Postby proto87stores » Fri Sep 06, 2019 3:31 pm

High Level Kits wrote:SNIP

This ‘ease of construction’ thing is a novel idea though - what’s that all about?... :?

My approach is to go back to first principles. Define the many requirements; Figure out the various technology and engineering ways of making the requirements happen; Integrate the several design answers to find if there are any effective combinations and useful but manageable compromises; Review and if necessary rework all the previous to achieve the lowest cost of the fundamentals. If you start with "ease of construction", you have a good likelihood of ending up with it.

That's quite different from just sticking a extra new idea onto an existing solution and expecting it to be optimum. Especially if the old and new were developed and evaluated from separate sets of requirements. Transistors are not the result of improvements to vacuum tubes (radio valves), and DCC wouldn't work without serious prior theoretical knowledge of digital data communications, and abandoning pure DC control.

It's not rocket science, just a disciplined process and sticking to well understood and thoroughly tested facts. But it does take time to follow.


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