نتایج جستجو برای: absorbing energy

تعداد نتایج: 676869  

The energy absorbing capability is one of the most important aspects of crushing behavior of a structure subjected to axial impact. In this paper, a simple practical method is introduced to enhance the crushing behavior of this kind of structure. The axial impact of metallic energy absorbing thin-walled tubes with special shaped cross-section is simulated using LS-DYNA software. The effect of c...

Journal: :journal of structural engineering and geo-techniques 2015
leila shahryari mahdi esfandiari

the steel shear wall and composite steel plate shear wall is introduced in recent three decade and is considered and is spread rapidly. composite steel plate shear wall which is made of a layer of thin steel sheet with coating of reinforced concrete in one or both sides of steel palate is considered a third generation of resistance shear walls against lateral loads that in addition to increasin...

1998
Ernesto Bonomi

Formulating the 3D acoustic wave equation in Hamiltonian form yields direct access to the generalized eld momentum, making it possible to monitor local energy ux directly and locally impose a direction on this ux. This provides a way to tweak the energy near the boundary and implement good absorbing boundary conditions using only the lowest-order paraxial equation. The overall method is well-po...

Hitesh N. Panchal, P. K. Shah

A solar still is a viable option when the demand of potable water does not exceed more than 3 litres. Enhancement in distillate output from the solar still is a main goal of many researchers all over the world. In this research, the effect of copper and aluminium plates on distillate output is investigated experimentally as well as theoretically at different water depths under the same climate ...

Journal: :international journal of advanced design and manufacturing technology 0
k. hoseini safari faculty of industrial and mechanical engineering, islamic azad university, qazvin branch, qazvin, iran y. mohammadi faculty of industrial and mechanical engineering, islamic azad university, qazvin branch, qazvin, iran sajjad dehghanpour department of mechanical eng., toyserkan branch, islamic azad university, toyserkan, iran

impact is one of the most important subjects which always have been considered in mechanical science. nature of impact is such that which makes its control a hard task. therefore it is required to adopt a safe and secure mechanism for transferring the impact to other vulnerable parts of a structure, when it is necessary. one of the best methods of absorbing impact energy is using thin-walled tu...

2015
Muhammad Ali

Deformable energy absorbers play a vital role in crash protection systems. However, prevailing stringent design requirements to mitigate impact damage in a limited space have advocated a need for superior energy absorbing materials and versatile and compact structures. In this thesis, an intelligent compact energy absorbing structure is presented that alleviates the impact by distributing load ...

Journal: :مهندسی سازه 0
محمدمهدی اسلامی زاده حبیب سعید منیر

the application of energy absorbing systems in the structures are one of the main methods in attenuation of earthquake effects. in this paper, the vibration control of structures by using of tube inversion systems is considered. in this novel system, the energy is dissipated by the inversion of a metal tube. this energy dissipater has large energy absorbing capacity along with constant stiffnes...

2013
Maninder Preet Singh Vikas Kumar Goel

The value of absorption of light energy is dependent on the number of molecules present in absorbing material and the thickness of the medium. Thus, intensity of light energy leaving the absorbing substance is used as an indication of concentration of that particular substance. If the thickness i.e. path length of the light energy in the sample holder, normally the flow through cell and intensi...

Journal: :IJAC 2016
Libor Barto Alexandr Kazda

We characterize absorption in finite idempotent algebras by means of Jónsson absorption and cube term blockers. As an application we show that it is decidable whether a given subset is an absorbing subuniverse of an algebra given by the tables of its basic operations.

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