Temat: impact analysis - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Dynamical analysis of a constrained flexible extensible link with rigid support and clearance
Autorzy:: Dupac, M
Powiązania:: https://bibliotekanauki.pl/articles/280562.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: multibody dynamics
impact analysis
contact forces
Opis:: Dynamic response of robotic systems is affected by deformation of their flexible components, velocity and mass of the systems, as well as by the presence of clearance or impact between the components. Since accurate simulations of such robotic systems are increasingly important, the modelling and dynamical behaviour of an extensible mechanism with a rigid crank and a flexible link is investigated in this paper. The equations of motion of the extensible flexible link, constrained to a circular, Cartesian, elliptical, Cassinian, Lame or pear-shaped quartic path, are presented. A dynamical analysis is carried out in order to compare the dynamical response of the flexible link vs. a rigid link under the combined effect of different parameters such as flexibility and clearance. The simulation result shows clear trajectories divergence due to the impact effect of the flexible link on the rigid crank.
Źródło:: Journal of Theoretical and Applied Mechanics; 2014, 52, 3; 665-676
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Structural assessment of the hull response of an fpso unit to dropped objects: a case study
Autorzy:: Ozguc, Ozgur
Powiązania:: https://bibliotekanauki.pl/articles/259379.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: drop object
hull response
impact analysis
offshore structures
Opis:: Offshore structures are exposed to the risk of damage caused by various types of extreme and accidental events, such as fire, explosion, collision, and dropped objects. These events cause structural damage in the impact area, including yielding of materials, local buckling, and in some cases local failure and penetration. The structural response of an FPSO hull subjected to events involving dropped objects is investigated in this study, and non-linear finite element analyses are carried out using an explicit dynamic code written LS-DYNA software. The scenarios involving dropped objects are based on the impact from the fall of a container and rigid mechanical equipment. Impact analyses of the dropped objects demonstrated that even though some structural members were permanently deformed by drop loads, no failure took place in accordance with the plastic strain criteria, as per NORSOK standards. The findings and insights derived from the present study may be informative in the safe design of floating offshore structures.
Źródło:: Polish Maritime Research; 2019, 4; 39-46
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Numerical analysis of impact load of arch yielding support
Autorzy:: Tokarczyk, J.
Turewicz, K.
Smolnik, G.
Rotkegel, M.
Powiązania:: https://bibliotekanauki.pl/articles/243887.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: virtual prototyping
finite elements method
mining
impact analysis
experimental test
Opis:: Bumping is one of the natural hazards that occur in Polish collieries. It is a common phenomenon but difficult to predict and very often it causes huge losses in mining equipment and roadway structure. Death of miners working underground is most severe result of bumping. To reduce or even to eliminate results of bumping, especially fatal cases, many safety measures have been used. Frame of arch support is one of the measures applied to reduce dangerous results of bumping. Simulation test ofimpact load of arch yielding support was presented in the paper. The simulation of support load was realized in two stages. Static load of frame of yielding arch support was simulated at the first stage. Among others simulation of assembly of arch support components was carried out. Non-linear simulation, including contact phenomena, was conducted for that purpose. First stage of the task was realized in MSC.Marc/Mentat software Structure of yielding arch support was dynamically loaded at the second stage. The forcing corresponded to real dynamic loads that werefound in mine workings. Second stage of the task was realized in MSC.Dytran software The results of simulations carried out at the KOMAG Institute of Mining Technology were compared with the results of tests of arch supports, which were realized at the Central Mining Institute.
Źródło:: Journal of KONES; 2010, 17, 1; 455-464
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Analysis on two wheeler chassis frame of e-bike subjected to static and impact loads
Autorzy:: Konada, Naresh Kumar
Suman, Koka Naga Sai
Powiązania:: https://bibliotekanauki.pl/articles/95203.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: two wheeler chassis frame
static analysis
impact analysis
rama podwozia pojazdu dwukołowego
analiza statyczna
analiza wpływu
Opis:: The future of automotive industry is to design and develop electrical vehicles to control the emissions released from gaseous fuels and not to release any harmful gases in to atmosphere. In this work, an attempt was made to analyze the behavior of two wheeler E- bike with alternative materials of frame such as Aluminum alloy (Al-A), Titanium alloy (Ti-A), Grey cast iron (G-CI), Carbon fiber epoxy (CF-E), and Structural steel (ST-S) and compared with AISI-1020 material. The frame of Yamaha R15 is initially modeled by using solid work and imported to Ansys. Static analysis was performed by applying a load of 1500 N on the frame and Impact analysis was performed by applying velocity of 27.7 m/s along X direction. The values of equivalent von Mises stress and total deformation for all the materials are observed. After performing static analysis, it was observed that, CF- Epoxy material exhibited higher value of Equivalent von Mises stress (7.659*107 Pa) and lower total deformation of (0.304×10-6 mm) compared to remaining materials. Based on impact analysis , it was observed that, CF-E exhibited better von Mises stress of (3994.9 MPa) closer to AISI 1020 and structural steel materials and total deformation is observed to be lower value (0.1106 mm) compared to remaining materials.
Źródło:: Journal of Mechanical and Energy Engineering; 2020, 4, 1; 15-26
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Impact-based piezoelectric energy harvesting system excited from diesel engine suspension
Autorzy:: Caban, Jacek
Litak, Grzegorz
Ambrożkiewicz, Bartłomiej
Gardyński, Leszek
Stączek, Paweł
Wolszczak, Piotr
Powiązania:: https://bibliotekanauki.pl/articles/118147.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Promocji Wiedzy
Tematy:: vibration energy harvesting
impact analysis
diesel engine
zbieranie energii drgań
analiza uderzeń
silnik wysokoprężny
Opis:: Vibration energy harvesting systems are using real ambient sources of vibration excitation. In our paper, we study the dynamical voltage response of the piezoelectric vibrational energy harvesting system (PVEHs) with a mechanical resonator possessing an amplitude limiter. The PVEHs consist of the cantilever beam with a piezoelectric patch. The proposed system was subjected to the inertial excitation from the engine suspension. Impacts of the beam resonator are useful to increase of system’s frequency transition band. The suitable simulations of the resonator and piezoelectric transducer are performed by using measured signal from the engine suspension. Voltage outputs of linear (without amplitude limiter) and nonlinear harvesters were compared indicating better efficiency of the nonlinear design.
Źródło:: Applied Computer Science; 2020, 16, 3; 16-29
1895-3735
Pojawia się w:: Applied Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Koncepcja zrównoważonego rozwoju : perspektywa eko-energetyki
Sustainable development concept : eco-energy perspective
Autorzy:: Sośnicki, Marek
Wiśniewski, Dawid
Powiązania:: https://bibliotekanauki.pl/articles/27309797.pdf
Data publikacji:: 2023
Wydawca:: Towarzystwo Wiedzy Obronnej
Tematy:: zrównoważony rozwój
eko-energetyka
cykl życia
analiza wpływu
sustainable development
eco-energy
life cycle
impact analysis
Opis:: W artykule przedstawiono wybrane kwestie aktualnie poruszane w zakresie ewaluacji koncepcji zrównoważonego rozwoju, warunkującej sekwencje ich cyklu życia. Polityka klimatyczno-energetyczna Unii Europejskiej jako inspiracja determinantów polityczno-społeczno-gospodarczych określa wpływ sektora energetycznego na ocenę cyklu życia koncepcji zrównoważonego rozwoju. Przeprowadzona w tym celu wielowymiarowa analiza potencjalnego wpływu, związanego z wyodrębnionymi etapami cyklu życia, przyjaznymi środowisku będzie wykorzystywana do opracowania oceny koncepcji zrównoważonego rozwoju. Zakres czasowy analizy wpływu obejmował okres od ostatniej dekady XX w. do dzisiaj. Celem artykułu jest zdefiniowanie ekoenergetyki w kontekście koncepcji zrównoważonego rozwoju mające pomóc w określeniu oddziaływania w/w determinantów, uczynienia jej atrakcyjniejszej wizerunkowo i przyczynienia się do ochrony naszej planety. Analizie poddano dane za lata 2020-2022.
The article presents selected issues currently being addressed in the evaluation of sustainable development concepts, conditioning the sequences of their life cycle. The climate and energy policy of the European Union as an inspiration of political-socio-economic determinants determines the impact of the energy sector on the evaluation of the life cycle of the concept of sustainable development. The multidimensional analysis of the potential impact associated with the identified environmentally friendly life cycle stages conducted for this purpose will be used to develop an assessment of the concept of sustainable development. The temporal scope of the analysis covered the period from the last decade of the 20th century to today. The purpose of the article is to define eco-energy in the context of the concept of sustainable development to help determine the impact of the factors mentioned above, make it more attractive in terms of image and contribute to the protection of our planet.
Źródło:: Wiedza Obronna; 2023, 2
0209-0031
2658-0829
Pojawia się w:: Wiedza Obronna
Dostawca treści:: Biblioteka Nauki

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