The dynamic behavior of railway bridges carrying high-speed trains can be analyzed with or without the consideration of the vehicle's own structure. However, due to the amount of kinetic energy carried at high speeds, the train may interact significantly with the bridge, especially when resonance occurs. Equally important is the riding comfort and the stability of the track and train cars, whic...

An example of the experimental validation of a finite element model of a selected heavy vehicle is presented in the paper. A truck tractor with a three a xle single drop low boy trailer and the total weight of 20 t ons was selected as a representative for the tests. The major goal of the conducted studies w as to develop a well validated the numerical model of a heavy vehicle applicable for com...

Nowadays, vehicle-induced vibration is a subject matter interest in the bridge monitoring field. As compared to other types of excitation such as earthquake and accidental impact, the vehicle-induced vibration is often being less considered during the design process of the bridge. The newly implementedcode also does not emphasize on the vibration check for vehicular bridge and requires the engi...

Background: vertigo may be a warning sign of impending vertebrobasilar stroke. Objective: To investigate the role of brain stem auditory evoked potential (BAEP), electronystagmography (ENG) studies and results of transcranial Doppler (TCD) in patients with vertigo of vertebrobasilar origin and patients with vertigo of non-vertebrobasilar origin. Methods: Twenty five patients with vertigo aged 4...

Rotational movements in the territory of vertebrobasilar artery of the head and neck can induce vertebrobasilar insufficiency (VBI) or infarction. The term "bow hunter's stroke" or "rotational VBI" has been used to describe this clinical syndrome. In most cases, symptoms were provoked because of involvement of a dominant vertebral artery (VA) with hypoplasia or occlusion of the contralateral VA...

The paper presents finite element (FE) model development and experimental validation for a truck tractor with a three axle single drop lowboy trailer. The main objective of this research activity was to create a simplified, three dimensional virtual FE model, applicable for computer simulation of dynamic interaction between a vehicle and a bridge or road structure. Such model should provide a r...

Abstract With the rapid development of high-speed railways around globe, safety vehicles running on bridges during earthquakes has been paid more attention to. In design railway bridges, in addition to ensuring bridge structure earthquake, vehicle should also be ensured. Previous studies have focused detailed analysis derailment proposing complex numerical algorithms for wheel–rail contact as w...

The paper is a summary of the research conducted so far on the ultrafast charging issues of electric vehicles with the main emphasis on the infrastructure. In order to estimate the load curve and peaks resulting from high charging rate, simulations are carried out initially to determine energy and power ratings. Energy storage options for filtering out the perspective peaks are discussed with a...