نتایج جستجو برای: energy absorbers

تعداد نتایج: 669878  

The present work studies the performance of linear and nonlinear dynamic vibration absorbers mounted on Euler–Bernoulli beams subjected to moving loads. Absorbers used in this work consist of one mass, two springs and one linear damper.The springs may be considered either linear or non-linear. The objective is to compare the performance of these absorbers with classical dynamic and nonlin...

Abolfazl Khalkhali, Alireza Salour

Actual applications of the energy absorbers showed that actual loads are not applied in the form of pure axial compression, pure bending or pure torsion. In reality, an energy absorber component may be subjected to combined loading of compression, bending and torsion. A number of previous articles have investigated the behavior of energy absorbers under oblique loading. In such cases, the obliq...

Journal: :international journal of automotive engineering 0
mokhtari farhadi

automobile light weight structural composites are subjected to the various loadings in their service lives. honeycombs are increasingly used as core structures in automobile light weight structures as energy absorbers. in this paper the energy absorption of honeycomb panels under impact of cylindrical projectile is numerically and experimentally studied. the effect of the core materials and cro...

2017
Libo Yan Bo Wang Bohumil Kasal

Citation: Yan L, Wang B and Kasal B (2017) Can Plant-Based Natural Flax Replace Basalt and E-Glass for Fiber-Reinforced Polymer Tubular Energy Absorbers? A Comparative Study on Quasi-Static Axial Crushing. Front. Mater. 4:42. doi: 10.3389/fmats.2017.00042 can Plant-Based natural Flax replace Basalt and e-glass for Fiber-reinforced Polymer Tubular energy absorbers? a comparative study on Quasi-s...

 Thin-walled energy absorbers are used to reduce accident induced damages. In this study, thin-walled stainless steel structures in quasi-hemisphere geometry were subjected under quasi-static loading with Santam 150KN apparatus. Experimental results were compared with results of numerical simulations by LS-DYNA and it was shown that there is a good agreement between experimental and numerical r...

2015
Feng Cao Kenneth McEnaney Gang Chen Zhifeng Ren

Spectrally-selective solar absorbers harvest solar energy in the form of heat. Solar absorbers using cermet-based coatings demonstrate a high absorptance of the solar spectrum and a low emittance in the infrared (IR) regime. Extensive work has been done to optimize cermet-based solar absorbers to achieve high performance by exploring different cermet (ceramic-metal composite) materials and film...

Farhadi, Mokhtari,

Automobile light weight structural composites are subjected to the various loadings in their service lives. Honeycombs are increasingly used as core structures in automobile light weight structures as energy absorbers. In this paper the energy absorption of honeycomb panels under impact of cylindrical projectile is numerically and experimentally studied. The effect of the core materials and cro...

2003
C. Fechner R. Baade D. Reimers

We present an analysis of the complex associated system of the high-redshift QSO HE 2347-4342. Absorption features of H , C , C , N , and O  with up to 16 components occur in the optical spectral range located up to 1500 km s −1 redwards from the emission line. Apparently, C  and N  show the line locking effect. A quantivative analysis of the line distribution comparing simulated sp...

2017
Vytautas Bucinskas Peter Mitrouchev Ernestas Sutinys Nikolaj Sesok Igor Iljin Inga Morkvenaite-Vilkonciene

Shock absorbers allow the damping of suspension vibrations, by dissipating kinetic energy. This energy theoretically can be harvested; however, practical solutions are not easily obtainable. This paper is dedicated to analyzing and evaluating the vibration energy in a vehicle’s suspension that is generated by road excitations. Also, it estimates the possible amount of harvested energy required ...

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