Eksperimentalna verifikacija proračuna čvrstoće vagona za prevoz automobila
Experimental verification of auto carrier car strength calculation
Abstract
U radu je dat proračun i eksperimentalna analiza naponskog stanja noseće strukture vagona za prevoz automobila. Proračunom je obuhvaćena statička i dinamička analiza noseće strukture, kao i određivanje torzione krutosti primenom metode konačnih elemenata. Analiza čvrstoće noseće strukture je obuhvatila i opterećenje pod dejstvom bočne sile nastale usled ubrzanja od 0,1 g. Analizirana je četvrtina vagona sa bočnim vratima, kao najslabiji deo strukture. Ispitivanjem je obuhvaćena noseća struktura vagona koja se sastoji od postolja, bočnih stranica i dve pokretne platforme, bez čeonih i bočnih vrata kao i krova. Naponi su mereni pomoću mernih traka na 120 mernih mesta, od kojih su pojedina omogućavala merenje napona u sva tri pravca. Rezultati merenja pokazuju da su naponi u svim slučajevima opterećenja značajno ispod dozvoljenih. Zaostali naponi su bili u dozvoljenim granicama. Ugibi noseće strukture su bili veoma mali i nisu prešli 0,6 ‰ rastojanja osa svornjaka, što je značajno ispod d...ozvoljene vrednosti.
In this paper a calculation method and experimental analyses of auto carrier car bearing structure strength are shown. The calculation includes both the static and dynamic analyses of the bearing structure; also the determination of the car body torsion rigidity calculation has been performed with the programming package based on Finite Element Method. The analyses of the bearing structure strength for the load case due to the car lateral inertia forces at lateral acceleration of 0,1.g has also been included. The calculation covered one quarter of the wagon with two doors as the weaker ones. The object tested was the auto carrier car composed of the underframes, sidewalls and two mobile upper platforms without side and front doors and without roof. Stresses were measured by the strain-gauge method on 120 measuring points. Some of them were connected to form strain gauges in three directions thus enabling the estimation of principal stresses. The measuring results show that the stress c...onditions in all load cases are remarkably under the allowable stresses. The residual stresses were in acceptable limits. Bearing structure deflections were very small and did not exceed 0,6‰ from the centre pin distance, which is well below allowable value.
Keywords:
strength calculation / strain-gauge method / experimental analyses / auto carrier carSource:
FME Transactions, 2004, 32, 1, 43-48Publisher:
- Univerzitet u Beogradu - Mašinski fakultet, Beograd
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Mašinski fakultetTY - JOUR AU - Lučanin, Vojkan AU - Simić, Goran AU - Milković, Dragan PY - 2004 UR - https://machinery.mas.bg.ac.rs/handle/123456789/408 AB - U radu je dat proračun i eksperimentalna analiza naponskog stanja noseće strukture vagona za prevoz automobila. Proračunom je obuhvaćena statička i dinamička analiza noseće strukture, kao i određivanje torzione krutosti primenom metode konačnih elemenata. Analiza čvrstoće noseće strukture je obuhvatila i opterećenje pod dejstvom bočne sile nastale usled ubrzanja od 0,1 g. Analizirana je četvrtina vagona sa bočnim vratima, kao najslabiji deo strukture. Ispitivanjem je obuhvaćena noseća struktura vagona koja se sastoji od postolja, bočnih stranica i dve pokretne platforme, bez čeonih i bočnih vrata kao i krova. Naponi su mereni pomoću mernih traka na 120 mernih mesta, od kojih su pojedina omogućavala merenje napona u sva tri pravca. Rezultati merenja pokazuju da su naponi u svim slučajevima opterećenja značajno ispod dozvoljenih. Zaostali naponi su bili u dozvoljenim granicama. Ugibi noseće strukture su bili veoma mali i nisu prešli 0,6 ‰ rastojanja osa svornjaka, što je značajno ispod dozvoljene vrednosti. AB - In this paper a calculation method and experimental analyses of auto carrier car bearing structure strength are shown. The calculation includes both the static and dynamic analyses of the bearing structure; also the determination of the car body torsion rigidity calculation has been performed with the programming package based on Finite Element Method. The analyses of the bearing structure strength for the load case due to the car lateral inertia forces at lateral acceleration of 0,1.g has also been included. The calculation covered one quarter of the wagon with two doors as the weaker ones. The object tested was the auto carrier car composed of the underframes, sidewalls and two mobile upper platforms without side and front doors and without roof. Stresses were measured by the strain-gauge method on 120 measuring points. Some of them were connected to form strain gauges in three directions thus enabling the estimation of principal stresses. The measuring results show that the stress conditions in all load cases are remarkably under the allowable stresses. The residual stresses were in acceptable limits. Bearing structure deflections were very small and did not exceed 0,6‰ from the centre pin distance, which is well below allowable value. PB - Univerzitet u Beogradu - Mašinski fakultet, Beograd T2 - FME Transactions T1 - Eksperimentalna verifikacija proračuna čvrstoće vagona za prevoz automobila T1 - Experimental verification of auto carrier car strength calculation EP - 48 IS - 1 SP - 43 VL - 32 UR - https://hdl.handle.net/21.15107/rcub_machinery_408 ER -
@article{ author = "Lučanin, Vojkan and Simić, Goran and Milković, Dragan", year = "2004", abstract = "U radu je dat proračun i eksperimentalna analiza naponskog stanja noseće strukture vagona za prevoz automobila. Proračunom je obuhvaćena statička i dinamička analiza noseće strukture, kao i određivanje torzione krutosti primenom metode konačnih elemenata. Analiza čvrstoće noseće strukture je obuhvatila i opterećenje pod dejstvom bočne sile nastale usled ubrzanja od 0,1 g. Analizirana je četvrtina vagona sa bočnim vratima, kao najslabiji deo strukture. Ispitivanjem je obuhvaćena noseća struktura vagona koja se sastoji od postolja, bočnih stranica i dve pokretne platforme, bez čeonih i bočnih vrata kao i krova. Naponi su mereni pomoću mernih traka na 120 mernih mesta, od kojih su pojedina omogućavala merenje napona u sva tri pravca. Rezultati merenja pokazuju da su naponi u svim slučajevima opterećenja značajno ispod dozvoljenih. Zaostali naponi su bili u dozvoljenim granicama. Ugibi noseće strukture su bili veoma mali i nisu prešli 0,6 ‰ rastojanja osa svornjaka, što je značajno ispod dozvoljene vrednosti., In this paper a calculation method and experimental analyses of auto carrier car bearing structure strength are shown. The calculation includes both the static and dynamic analyses of the bearing structure; also the determination of the car body torsion rigidity calculation has been performed with the programming package based on Finite Element Method. The analyses of the bearing structure strength for the load case due to the car lateral inertia forces at lateral acceleration of 0,1.g has also been included. The calculation covered one quarter of the wagon with two doors as the weaker ones. The object tested was the auto carrier car composed of the underframes, sidewalls and two mobile upper platforms without side and front doors and without roof. Stresses were measured by the strain-gauge method on 120 measuring points. Some of them were connected to form strain gauges in three directions thus enabling the estimation of principal stresses. The measuring results show that the stress conditions in all load cases are remarkably under the allowable stresses. The residual stresses were in acceptable limits. Bearing structure deflections were very small and did not exceed 0,6‰ from the centre pin distance, which is well below allowable value.", publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd", journal = "FME Transactions", title = "Eksperimentalna verifikacija proračuna čvrstoće vagona za prevoz automobila, Experimental verification of auto carrier car strength calculation", pages = "48-43", number = "1", volume = "32", url = "https://hdl.handle.net/21.15107/rcub_machinery_408" }
Lučanin, V., Simić, G.,& Milković, D.. (2004). Eksperimentalna verifikacija proračuna čvrstoće vagona za prevoz automobila. in FME Transactions Univerzitet u Beogradu - Mašinski fakultet, Beograd., 32(1), 43-48. https://hdl.handle.net/21.15107/rcub_machinery_408
Lučanin V, Simić G, Milković D. Eksperimentalna verifikacija proračuna čvrstoće vagona za prevoz automobila. in FME Transactions. 2004;32(1):43-48. https://hdl.handle.net/21.15107/rcub_machinery_408 .
Lučanin, Vojkan, Simić, Goran, Milković, Dragan, "Eksperimentalna verifikacija proračuna čvrstoće vagona za prevoz automobila" in FME Transactions, 32, no. 1 (2004):43-48, https://hdl.handle.net/21.15107/rcub_machinery_408 .