To facilitate the damping matching of dampers for vehicle passive suspensions, this paper proposes an analytical matching method of the optimal piecewise linear damping characteristics curve. Based on the vehicle vibration model, taking the suspension dynamic deflection as the constraint, by the vibration acceleration and the wheel dynamic load, an objective function about the relative damping ...

History matching is a critical step in reservoir numerical simulation algorithms. It typically hindered by difficulties associated with the high-dimensionality of problem and gradient calculation approach. Here, multi-step solving method proposed which, first, Fast marching (FMM) used to calculate pressure propagation time determine single-well sensitive area. Second, mathematical model for his...

Template matching is a widely used technique in many of image processing and machine vision applications. In this paper we propose a new as well as a fast and reliable template matching algorithm which is invariant to Rotation, Scale, Translation and Brightness (RSTB) changes. For this purpose, we adopt the idea of ring projection transform (RPT) of image. In the proposed algorithm, two novel s...