Thermal Analysis and Rigid-Flexible Coupling Dynamics of a Satellite with Membrane Antenna

Table 4

Nature frequencies of the membrane antenna structure under different heat fluxes.

	First-order nature frequency	Second-order nature frequency	Third-order nature frequency	Fourth-order nature frequency	Fifth-order nature frequency	Sixth-order nature frequency
No thermal effect	0.307	0.310	0.674	0.791	0.933	1.086
1831 W/m^2	0.378	0.395	0.934	1.179	1.451	1.671
1089 W/m^2	0.349	0.356	0.810	0.981	1.186	1.404
872.4 W/m^2	0.548	0.548	0.735	0.812	0.926	1.063
56.2 W/m^2	—	—	1.061	1.061	1.414	1.414
1.04 W/m^2	—	1.296	1.296	—	—	2.417