The ageing behaviour of novel MV-busbar connections

2009 ◽  
Author(s):  
U. Kaltenborn ◽  
G. Moustaffa ◽  
S. Grossmann ◽  
R. Kral
Keyword(s):  
Ageing Behaviour

Investigation on the asymmetric creep ageing behaviour of 2195-T84 Al–Li alloy under different tensile and compressive stress levels

2021 ◽  
Vol 131 ◽  
pp. 107078
Author(s):  
He Li ◽  
Lihua Zhan ◽  
Minghui Huang ◽  
Xing Zhao ◽  
Chang Zhou
Keyword(s):  
Compressive Stress ◽  
Ageing Behaviour ◽  
Stress Levels

scholarly journals Creep ageing behaviour assisted by electropulsing under different stresses for Al−Cu−Li alloy

2021 ◽  
Vol 31 (7) ◽  
pp. 1916-1929
Author(s):  
Chang ZHOU ◽  
Li-hua ZHAN ◽  
He LI ◽  
Xing ZHAO ◽  
Fei CHEN ◽  
...  
Keyword(s):  
Ageing Behaviour

scholarly journals Ageing simulation of a hydraulic engine mount: A data-informed finite element approach

2018 ◽  
Vol 233 (10) ◽  
pp. 2432-2442 ◽  
Author(s):  
Payam Soltani ◽  
Christophe Pinna ◽  
David J Wagg ◽  
Roly Whear
Keyword(s):  
Finite Element ◽  
Mechanical Response ◽  
Element Model ◽  
Experimental Results ◽  
Softening Effect ◽  
Engine Mounts ◽  
Ageing Behaviour ◽  
Ageing Model ◽  
Engine Mount ◽  
Vehicle Suspension System

Hydraulic engine mounts are key elements in an automotive vehicle suspension system that typically experience a change of their designed function during their working lifetime due to progressive material ageing, primarily from the elastomeric component. Ageing of the engine mount, resulting from severe and continuous mechanical and thermal loads, can have a detrimental impact on the ride and comfort and long-term customer satisfaction. This paper introduces a new practical methodology for simulating the ageing behaviour of engine mounts resulting from the change in properties of their elastomeric main spring component. To achieve this, a set of dynamic mechanical thermal analysis tests were conducted on elastomeric coupons taken from a set of engine mounts with different service and ageing conditions. These experimental results were used to characterise the change in mechanical response of the elastomer and to build up an empirical elastomer ageing model. Then a finite element model of the main spring was developed that used the elastomer ageing model so that the ageing behaviour of the engine mount could be simulated. The resulting ageing model was verified by using experimental results from a second batch of ex-service engine mounts. The results show an increasing trend of the vertical static stiffness of the engine mounts with distance travelled (or age) up to a certain distance (approximately 95,000 km). The trend is then reversed and a softening effect is observed. Moreover, the results reveal that both the maximum stiffness value and the distance travelled at the peak stiffness decrease as the temperature increases.

Sign in / Sign up

Export Citation Format

Share Document