Optimal Control Scheme of the Tethered System for Orbital Transfer under a Constant Thrust

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/ijae/volume-2018/1572726/figures/1572726.fig.005a.svgz" name="1572726.fig.005a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Thrust direction angle <i>γ</i></td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/ijae/volume-2018/1572726/figures/1572726.fig.005b.svgz" name="1572726.fig.005b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>In-plane angle <i>θ</i></td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/ijae/volume-2018/1572726/figures/1572726.fig.005c.svgz" name="1572726.fig.005c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Geocentric distance <i>r</i></td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/ijae/volume-2018/1572726/figures/1572726.fig.005d.svgz" name="1572726.fig.005d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Tether tension <i>T</i></td></tr></table>

<div>Time responses of the tethered system with different constraints on <i>γ</i>.</div>

International Journal of Aerospace Engineering

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Figure 5

Figure 5: Optimal Control Scheme of the Tethered System for Orbital Transfer under a Constant Thrust 