Double frequency screen adopts the principle of combined vibration frequence . In order to realize efficient screening of material which are easily to block deck ...

by A Luo · 2023 · Cited by 43 — A vibration energy harvester with double frequency-up conversion mechanism is proposed. •. External vibrations at sub-Hertz can be up-converted to hundreds ...

by Y Yoo · 2022 · Cited by 10 — This paper presents a model for estimating the perceived intensity of a superimposed dual-frequency vibration from the perceived intensities ...

by AA Tampion · 1990 · Cited by 1 — This Thesis describes the development of a model to represent the variation with load and excitation of double - frequency stator core vibration in large two -pole ...

It consists of one mass attached by spring, damper and also an actuator into the vibrating mechanical system . The actuator is usually used for precise tuning of ...

Jul 5, 2022 — Flexible structures within a non-uniform inflow may undergo complex vortex-induced vibrations (VIV) containing multiple frequencies and ...

by I Hwang · 2017 · Cited by 32 — We investigated the qualitative characteristics of dual-frequency vibrations as the simplest complex vibrations compared to single-frequency vibrations.

Sep 27, 2018 — With two shakers, the force rating can be doubled , which is obvious. Geometrically, two shakers can be arranged to excite the device under ...

by S Huang · 2002 · Cited by 4 — A finite element model for a generator-bearing system with asymmetrical stiffness is developed for investigation of the double frequency ...

The factor of 2 rule provides a practical safety margin to ensure reliable operation away from resonant frequencies, preventing excessive vibration .