Vibration Sideband Modulations and Harmonics Separation of a Planetary Helicopter Gearbox with Two Different Configurations

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/aav/volume-2016/9820768/figures/9820768.fig.001a.svgz" name="9820768.fig.001a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Carrier signal</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/aav/volume-2016/9820768/figures/9820768.fig.001b.svgz" name="9820768.fig.001b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Modulating signal</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/aav/volume-2016/9820768/figures/9820768.fig.001c.svgz" name="9820768.fig.001c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Modulated signal in time</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/aav/volume-2016/9820768/figures/9820768.fig.001d.svgz" name="9820768.fig.001d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Modulated signal in frequency domain</td></tr></table>

<div>An example of amplitude modulation and sidebands.</div>

Advances in Acoustics and Vibration

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Figure 1

Figure 1: Vibration Sideband Modulations and Harmonics Separation of a Planetary Helicopter Gearbox with Two Different Configurations 