Generic Behavior of Grazing Impact Oscillators

Investigation of the near-grazing behavior in hard-impact oscillators using model-based TS fuzzy approach

An impact oscillator is a non-smooth dynamical system with discontinuous state jumps whose dynamical behavior illustrates a variety of nonlinear phenomena including a grazing bifurcation. This specific phenomenon is difficult to analyze because it coincides with an infinite stretching of the phase space in the neighborhood of the grazing orbit, resulting in the well-known problem of the square-...

Co-dimension-two Grazing Bifurcations in Single-degree-of-freedom Impact Oscillators

Grazing bifurcations in impact oscillators characterize the transition in asymptotic dynamics between impacting and non-impacting motions. Several different grazing bifurcation scenarios under variations of a single system parameter have been previously documented in the literature. In the present paper, the transition between two characteristically different co-dimension-one grazing bifurcatio...

Table Lookup Oscillators Using Generic Integrated Wavetables

Table lookup oscillators form a basic building block of most software synthesis systems. Several of the classical digital and analog synthesis techniques require their use. The classical table lookup oscillator ([1, 2]) is commonly discussed regarding its amplitude error, but another source of error is mostly disregarded, although it influences the sound quality to a much higher degree, especia...

Does diverse grazing behavior of suckler cows have an impact on predicted methane emissions?

A modeling study based on a dataset from a large-scale grazing study was used to identify the potential impact of grazing behavior and performance of diverse cow genotypes on predicted methane (CH4) emissions. Lactating cows grazing extensive seminatural grassland and heath vegetation were monitored with Global Positioning System collars and activity sensors. The diet selected by cows of 3 diff...

Generic bifurcation structures of Arnol'd tongues in forced oscillators.