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1
Content available Working out of generalized dynamic model of cargo fixation with cargo pads jointly with flexible and thrust elements under the action spatial force system
Turanov K., Timukhina E.
Transport Problems
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2011
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T. 6, z. 2
79-88
EN
The article gives an account of the results of working out a generalized dynamic model of fixation of cargo with pads jointly with flexible and thrust elements. Working out a generalized dynamic model of cargo fixation is rather a complicated problem not in the sense of solving differential equations systems but in the sense of presenting them as a complex mechanical system “cargo – pads – flexible elements – thrust bars”. Generalized dynamic model of cargo with pads observed that this model represents technology of joint work of flexible and thrust fastening means of cargo on rolling stock. In particular, on the basis of this model there can be obtained the technology models of joint work of flexible and elastic fastening means of cargo without pads of fastening flexible elements of cargo with pads without thrust bars and also flexible fastening elements of cargo without pads and thrust bars at asymmetrical and/or symmetrical allocation of cargo in the wagon. A specific feature (novelty feature) of the proposed dynamic model is inclusion into the model of both cargo pads and thrust bars which are nailed to the wagon floor close to the butt and lateral sides of cargo.
2
Content available Investigation of the influence on friction pairs geometrical parameters of wagon truck spring - frictional set on the effectiveness of their operation
Turanov K., Cherepov O., Igrashev K.
Transport Problems
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2011
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T. 6, z. 1
63-71
EN
The article gives an account of the results of the analytical and numerical modeling of force action of friction pairs “truck bolster – frictional wedge” and “friction-al wedge – frictional plank”. There have been obtained formulas for determining con-straint reactions according to friction pairs geometrical parameters which makes it possible to find their rational values.
3
Content available Generalized mathematical model of fastening technology of cargo with pads jointly with flexible and thrust elements under the action of spatial force system
Turanov K., Timukhina E.
Transport Problems
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2011
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T. 6, z. 3
27-39
EN
The article gives an account of the results of the constructed generalized mathematical model of fixation of cargo with pads jointly with flexible and thrust fas-tening elements. Developed for the first time the generalized mathematical model of collat-eral fixation of cargo with padding by flexible and thrust elements made it possible to iden-tify the conditions providing workability of thrust bars together with pre twisted fastening wires and cargo pads. It should be emphases that it is only when these conditions are not fulfilled that elastic forces of flexible fastening elements are engaged in work on retaining cargo from shifting. The distinguishing characteristics of generalized model under the action of spatial force system as compared to specific models is manifested in its ability to provide workability of flexible fastening elements together with thrust bars and cargo pads according to the criterion of normative value of longitudinal (or lateral) load on a fastening component and allowable pressing tension of the most loaded of the used pads. The investigation results concerning cargo transported by and unprovided for in Specification [3] are now available for researchers and can be looked upon as a new stage in the development of this problem.
4
Content available Development of dynamical model of wheel machinery allocated on a flat-car
Turanov K., Portnova O.
Transport Problems
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2010
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T. 5, z. 2
71-82
EN
The paper gives the results of dynamical modeling of the mechanical system "flat car - elastic elements - wheel machinery body", allocated on a railway flat car. There have been obtained the formulas of equivalent rigidity of fastening spatial flexible elements relative to a vertical line, which are equal to rigidity of bus and spring flexible elements being plugged in series and which are then equal to rigidity of all elastic elements of wheeled machinery as springs being plugged in parallel.
5
Content available Analytical investigation of cargo displacement during the movement of rolling stock on a curved section of a track
Turanov K., Olentsevich V.
Transport Problems
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2010
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T. 5, z. 1
23-32
EN
The article gives an account of the results of generalized fastening mathematical modeling of cargo asymmetrically allocated both lengthwise and crosswise the wagon during the rolling stock movement on a curve under the exposure to the spatial force system. On the basis of the particular case of spatial modeling it is possible to obtain mathematical and dynamic fastening models under separate exposures to lengthwise and vertical, crosswise and vertical forces.
6
Content available Analytical basis of technology asymmetrical allocation of cargo masses common centre in wagons
Turanov K.
Transport Problems
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2009
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T. 4, z. 1
77-86
EN
The article gives the account of results of the analytical basis of technology asymmetrical cargo allocation in a wagon during rolling stock movement on track un-evenness waves. The finite analytical formulas have been obtained for determination of response of wagon bogie spring sets in case of simultaneous displacement of cargo masses common centre longitudinally and sideways to the wagon, which make it possible to ground the cargo allocation according to admissible value of wagon vertical dynamic addition coefficient.
7
Content available Analytical modelling cargoes displacement in wagon and tension in fastening
Turanov K., Timukhina E.
Transport Problems
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2008
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T. 3, z. 3
69-76
EN
The article deals with the conclusions of analytical modeling cargoes displacement relative wagon and tension in fastening on exposure to spatial system of forces.
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