Fig. 1. Launching of the LM-6C launch vehicle

Fig. 2. Composition of the LM-6C launch vehicle

Fig. 3. Pressure distribution cloud map of atypical flow field

Fig. 4. First-order modal aerodynamic damping cloud map

Fig. 5. Typical frequency mode of vibration

Fig. 6. Launch site modal experiment

Fig. 7. Sloshingcharacteristics of the propellant in the tank and vapor-liquid interface area of the liquid oxygen tank after the 2nd engine is shutdown

Fig. 8. Interstage separation simulation model and typical simulation results

Fig. 9. Temperature field cloud map of secondary kerosene under a typical working condition

Fig. 10. Shape accuracy control during the bonding process of large-diameter hyperbolic interlayer with red background

Fig. 11. Schematicdiagram of pressurization control

Fig. 12. Air pillow pressure of the 1st kerosene tank during flight

Fig. 13. Block diagram of the adaptive augmented control algorithm

Fig. 14. k_t change rate of the first fight pitch channel