In our investigation, we used Hamiltonian dynamics to model two different spring-pendulum systems in MATLAB. First, we confirmed that chaotic motion is possible in the classic single spring-pendulum system in two dimensions and without damping. Next, we modified the system by attaching the mass to two springs (Figure 1b) and tested to see how the dynamics change with the addition of this second...

The Edwards Aquifer in south-central Texas, U.S.A. is recognized worldwide for its aquatic species of flora and fauna, many of which are endangered or threatened, and also is the sole water source supporting the industrial, agricultural, municipal, and recreational needs of nearly 2 million people. Because it is generally the first species affected by low spring flows, the endangered fountain d...

For the lack of formula of linear range for S-shaped MEMS planar micro-spring, this paper establishes physical and mathematical model and analysis the material stress-strain angle. The formula is deduced by calculating the strain and rotation of the basic unit of micro-spring tension. Compared with the results of the tests on micro-spring which produced by UV-LIGA process, the formula results i...

This paper investigates the GENSIS air spring suspension system equivalence to a passive suspension system. The SIMULINK simulation together with the OptiY optimization is used to obtain the air spring suspension model equivalent to passive suspension system, where the car body response difference from both systems with the same road profile inputs is used as the objective function for optimiza...

This paper investigates several methodologies for simulating soft-body objects using a mass-spring approach. The mechanisms are then expanded to include deformation information that can produce results suitable for use in realtime applications where visual impact rather than accuracy is desired, such as video games. Many methods use complex and esoteric methods to achieve physically accurate si...

In the past, the gravitational acceleration on the surface of the Earth, g has been measured in many ways. Various methods include the use of a pendulum as well as models involving the use of a mass on a spring. We have designed a new method incorporating the mass-spring model with a capacitor, and a capacitance meter. This capacitor model still uses a hanging mass on a spring, but alters the m...

the main objective of this article is evaluation of the simplified models which have been developed for analysis and design of liquid storage tanks. the empirical formulas of these models for predicting maximum sloshing wave height (mswh) are obtained from mass spring models (msm). a finite element modeling (fem) tool is used for investigating the behavior the some selected liquid storage tanks...

Bipedal robots are diicult to analyze mathematically. However, successful control strategies can be discovered using simple physical intuition and can be described in simple terms. Five things have to happen for a planar bipedal robot to walk. Height has to be stabilized. Pitch has to be stabilized. Speed has to be stabilized. The swing leg has to move so that the feet are in locations which al...

This article describes a mechanical vertical attenuation system capable to provide large attenuation factors above 1Hz. This system is derived from, and improves, the passive Geometric Anti-Spring seismic attenuation filters minimizing their vertical resonant frequency by means of a tunable electromagnetic spring mounted in parallel with the main spring. The tunable spring is also used to compe...

The feasibility of reconstructing total spring precipitation for the South Platte River basin from treering chronologies using artificial neural networks is explored. The use of artificial neural networks allows a comparison of reconstructions resulting from both linear and nonlinear models. Both types of models produced reconstructions that explained more than 40% of the variation in spring pr...