On the torsion of track cables of jig back ropeways

Observations of the operation of jig back rope-ways allowed us to suggest the presence of torsion of track cables of a closed structure under the influence of operational loads. In this case, the total weight of the cable and the car is a trans-verse load, and the cable itself is loaded with longitudinal resistance forces in its individual sections. The paper provides theoretical substantiation and experimental confirmation of the presence of torsional deformations of track cables of jig back ropeways under the influence of friction between the cable and the rocking saddles. A new method of rejection of such cables based on the control of torsional deformations is proposed.

1. Dukelskiy, A.I. Podvesnye kanatnye dorogi i kabel’nye krany. [Cableways and cable cranes.] Leningrad: Mashinostroenie, 1966, 428 p. (in Russian).

2. Belaya, N.M. Osnovy rascheta nesushchikh kanatov. Stal’nye kanaty. Vyp. 2. [Calculation basis of track cables. Steel ropes. Vol. 2.] Kiev: Tekhnika, 1965, pp. 139-144. (in Russian).

3. Sergeev, S.T. Stal’nye kanaty. [Steel ropes.] Kiev: Tekhnika, 1974, 326 p. (in Russian).

4. Berkman, N.B. et al. Podvesnye kanatnye dorogi. [Cableways.] Moscow: Mashinostroenie, 1984, 264 p. (in Russian).

5. Pataraya, D.I. Raschet i proektirovanie kanatnykh system na primere podvesnykh dorog. [Calculation and design of rope systems on the example of cableways.] Tbilisi: Metsniereba, 1990, 102 p. (in Russian).

6. Mamaev, Yu.D. Optimal’nye usloviya ekspluatatsii nesushchikh kanatov na podvesnykh kanatnykh dorogakh. [Optimal operating conditions of track cables on cableways.] Stal’, 1995, no. 1, pp. 44-46 (in Russian).

7. Khalfin, M.N., Ivanov, B.F., Sorokina, E.V. K raschetu na prochnost’ nesushchego kanata podvesnoy kanatnoy dorogi. [On the calculation of the strength of the track cable of the cableway.] Interstroymekh-2011: materialy mezhdunar. nauch.-tekhn. konf. [Interstroymekh-2011: proc. of the international sci.-techn. conf.] Mogilev, 2011, pp. 237-240 (in Russian).

8. Khalfin, M.N., Sorokina, E.V., Ivanov, B.F. Kruchenie i volnistost’ nesushchikh zakrytykh kanatov podvesnykh kanatnykh dorog. [Torsion and undulation of cableways track cables of a closed structure.] Novocherkassk: Nabla, 2004, 117 p. (in Russian).

9. Pravila bezopasnosyi passazhirskikh kanatnykh dorog i funikulerov: Federal’nye normy i pravila v oblasti promyshlennoy bezopasnosti: [utv. Federal’noy sluzhboy po ekologicheskomu, tekhnologicheskomu i atomnomu nadzoru, 6 fevralya 2014 g. [Safety rules of passenger cableways and funiculars: Federal rules and regulations in the field of industrial safety: [app. by Federal service for environmental, technological and nuclear supervision, February 6, 2014] Konsortsium Kodex. Available at: http: // docs.cntd.ru/ document/ 499077072 (accessed 10.10.2019). (in Russian).

10. O vnesenii izmeneniy v Federal’nye normy i pravila v oblasti promyshlennoy bezopasnosti: [utv. Federal’noy sluzhboy po ekologicheskomu, tekhnologicheskomu i atomnomu nadzoru, 28 aprelya 2016 g. [On modification of Federal norms and rules in the field of industrial safety of passenger cable-ways and funiculars: [app. by Federal service for environmental, technological and nuclear supervision, April 28, 2016] Kontur. Normativ. Available at: https: // normativ. kontur.ru/ docu-ment?moduleId=1&documentId=273818 (date accessed: 10.10.2019). (in Russian).

11. Glushko, M.F. Stal’nye podyemnye krany. [Steel track cables.] Kiev: Tekhnika, 1966, 327 p. (in Russian).