To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.trainsOpen lugnet.trains in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Trains / 903
902  |  904
Subject: 
Re: high speed railways and strange flat bed cars
Newsgroups: 
lugnet.trains
Date: 
Mon, 22 Mar 1999 15:06:07 GMT
Reply-To: 
cmasi@cmasi^StopSpammers^.chem.tulane.edu
Viewed: 
3510 times
  
Eric,

  If the pivot point on you model was moved to the top then you train would act
like a Talgo train. Instead of the top moving inward, the bottom would swing
out. The swing of the cars has to be translated to a bending of the joint
between the cars. But what I am thinking about will not allow the trains to go
through an "S" because the cars would not be able to pivot in different
directions....ah never mind I have no idea what I am talking about.

Chris

PS. Eric I love your site. Not only are the models and ideas great it is a very
well done web site. The search light effect...the spot lights...very nice!

Eric Brok wrote:

> Actually, the Talgo trains do *not* pivot inward (like your model does, and
> my version of the Metroliner [1] [2]), but the bottom sways outward like a
> pendulum. This is an interesting alternative, demanding a very different
> approach mechanically (the cabins hanging on pillars).
> Also note, that this does not prevent the train from tipping over as well as
> the former approach. It does alleve the side-forces on the passengers, but
> as soon as the cabin sways behind a critical point, the train will tip over
> fiercefully.
> 
> Eric Brok
> 
> [1] http://www.svc.fcj.hvu.nl/brok/legomind/models select from menu: Trains,
> Leaning in curves
> [2] [1] was my first footnote to a news article :-)
> 
> Eric Brok
> Visit LEGO ON MY MIND:
> http://www.svc.fcj.hvu.nl/brok/legomind
> Mindstorms/Mind Control section:
> http://www.svc.fcj.hvu.nl/brok/legomind/robo
> Dutch section:
> http://www.svc.fcj.hvu.nl/brok/legomind/nl



Message has 1 Reply:
  Re: high speed railways and strange flat bed cars
 
Christopher Masi wrote in message <36F65C5C.414FB274@c...ne.edu>... (...) act (...) swing (...) go (...) The main difference: with leaning inward, the lean angle has to be mechanically induced by turning the bogies, while in the pendulum structure, (...) (28 years ago, 22-Mar-99, to lugnet.trains)

Message is in Reply To:
  Re: high speed railways and strange flat bed cars
 
Ben Fleskes wrote in message ... (...) *single* (...) to (...) made (...) rotation (...) with a (...) allowed (...) derail. (...) Actually, the Talgo trains do *not* pivot inward (like your model does, and my version of the Metroliner [1] [2]), but (...) (28 years ago, 22-Mar-99, to lugnet.trains)

26 Messages in This Thread:












Entire Thread on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact

This Message and its Replies on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact
    

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR