The virtual track train (VTT) is a new urban public transportation system that adopts all-axle steering and distributed drive. Super autonomous Rail rapid Transit (SRT), as one of them, four-module six-axle structure. In response to its crucial problem, path tracking, this article proposes reconfigurable dynamic modeling method, which has two parts: multi-body dynamics model with generalized fo...

The main topic of this article is the strength analysis selected bogie components – wheelset axle and frame. Axle calculations were based on analytical method conducted with different types materials. finite element was used for verification frame construction loads applied calculated according to PN-EN 13749 norm. a part suspended electric multiple unit which matter authors’ master thesis: „Th...

Sodium and barium metal cation templation has been used to construct a novel pyridine N-oxide containing [2]rotaxane. Upon addition and removal of metal cations, the macrocyclic component is observed to undergo a pirouetting motion around the pyridine N-oxide axle.

A novel [3]rotaxane composed of two 25-membered crownophanes and one axle molecule having two anthryl end groups was successfully synthesized via covalent bond formation followed by aminolysis, and can incorporate caesium ion into the space between the two macrocycles as a 1 : 1 sandwich-type complex, whereas it makes a 1 : 2 complex with lithium ion.

The combination of a disulfonated-dibenzo-24crown-8 ether wheel and a dicationic 1,2-bis(pyridinium)ethane axle yields a neutral [2]pseudorotaxane which in combination with neutral metallic units such as a Cu(II)benzoate paddlewheel or Cu(I)Br unit yields one-dimensional coordination polymers (linear and bent) which are the first examples of charge neutral, metal-organic rotaxane frameworks.

This paper discusses impact of changes in the load size and distribution passenger cars on geometry suspension steering systems. It was found to have a major road safety. The research carried out with four most popular system designs used modern cars, i.e. multi-link both front rear axles, only axle, axle simple design for axles. Eight variants were tests. Changes following wheel parameters ide...

The incorporation of a linear D–π–A “push–pull” chromophore synthesized by Knoevenagel condensation as axle rotaxane is reported.