A design study has been made of a wave energy converter in the form of a heaving buoy reacting against an internal moving mass. Phase control has been obtained by modulating the stiffness of the spring governing the moving mass. Promising results, agreeing closely with linear theory, have been obtained with two shapes of buoy. Mean annual captures of the order of 2OOW/tonne in a typical South U...

For most force measurement applications, the strain gage based transducer can be relied upon to faithfully convert a mechanical input into a proportional electrical analog output signal. However, when the mechanical input is either applied or changes at a rapid rate, the sensor may distort the conversion and the user should be aware of the possible consequences of this distortion. This article ...

A force feedback system, such as the haptic wheel used in the EECS 461 lab, is capable of exhibiting a wide range of interesting phenomena. It is useful to remember that the system consists of a mechanical device (the wheel in our case), with two feedback loops wrapped around it. As shown in Figure 1, one feedback loop consists of (i) a sensor such as an encoder, tachometer, or strain gauge, (i...

This paper presents how to design and implement a simple mass/spring system on a general-purpose topological structure. This way, topological inquiries or changes can be handled robustly so that the mesh remains consistent and a manifold.

Modeling a system means developing mathematical representation to simulate certain properties observed in real systems. These systems can range from car suspension the most complex robotics. In modern mechanical engineering, it is routine model physical dynamic as set of differential equations that will later be simulated using computer. This Use software for numerical analysis and qualitative ...

A fast and efficient deformation model is essential for realistic simulation of image morphing. In order to create models that are fast to simulation, we use a mass-spring system, which is applied widely in the real time animation of deformable objects. One-to-one deformation is one of the important issues in image morphing. We propose a method of detecting and removing overlaps in the process ...

Modeling and simulation of non-linear quarter-car suspension system for two air spring models (traditional dynamic new spring) are contrasted in terms (RMS) sprung mass acceleration, load coefficient, the vertical displacement, they compared. Two three (DOF) mathematical quarter implemented MATLAB/Simulink platform. The Ride Comfort (RC), Dynamic Load Coefficient (DLC) Road Handling (RH) respon...

Dynamic response of multispan viscoelastic thin beams subjected to a moving mass is studied by an efficient numerical method in some detail. To this end, the unknown parameters of the problem are discretized in spatial domain using generalized moving least square method (GMLSM) and then, discrete equations of motion based on Lagrange’s equation are obtained. Maximum deflection and bending momen...

The paper describes a novel multi-resolution registration method. It is fast, robust and offers high registration accuracy. The algorithm models deformations using an elastic spring mass system, which contains sparse masses interconnected by springs. The proposed method uses data intensity values to guide deformation with local constraints imposed by interaction of interconnecting springs. More...

The equations of planar motion of a mass attached to two anchored massless springs form a symmetric Hamiltonian system. The system has a single dimensionless parameter L, corresponding to the spacing between the anchors. For L > 1, there is a stable equilibrium at which the springs are in tension and lie on a line, but for L < 1, this equilibrium has both springs in compression, and is unstable...