Papers by Author: Veronica Argesanu

Abstract: The purpose of this research is to point out a controlled vibration quarter car model of a human body in seated position. Its importance is mostly due to the vertical accelerations impact of the human body and be able to control these vibrations. This paper marks these vertical accelerations based on a concentrated mass mathematical damped model. This is first established mathematically and then simulated in Matlab software, its results clarifying the differences between accelerations at different parts of the model and their range. Then the study focuses on the controller built in Simulink. The first part of the study de-scribes the quarter car model with concentrated masses depicting also mass, stiffness, damping and forces repartition.

Abstract: An axial clutch is one in which the mating frictional members are moved in a direction parallel to the shaft. One of the earliest of these is the cone clutch, which is simple in construction and quite powerful. However, except for relatively simple installations, it has been largely displaced by the disk clutch employing one or more disks as the operating members. Advantages of the disk clutch include the freedom from centrifugal effects, the large frictional area that can be installed in a small space, the more effective heat-dissipation surfaces, and the favorable pressure distribution. Modeling methods typically implement mathematical models that can be used to simulate steady-state and transient performance under various commanded conditions, loads, and operational regimes. In the case of drive-train systems, these models should be dynamic to simulate the transient interaction among speeds, loads, and power sources. These dynamic simulation models enable the identification of diagnostic indicators. .

Abstract: The purpose of this paper is to observe the ergonomic advantages of different car seats and how the driver is constrained to them during the drive. The study was conducted by taking in to consideration the dynamical characteristics of a standard vehicle and subjecting the human body model provided by the AnyBody Modelling System, to inertia and centrifugal forces, in three different driving posture cases. The model proved to be viable and offered an image of different car seats advantages from ergonomic point of view.