Chapter 3
System Design of Lunar Lander
3.1 Introduction
The system design of lunar lander usually included system-level design and analysis
for the lander during the life cycle of the lander development. The objective of the
system design was to provide an optimized spacecraft system solution meeting with
specific requirements by integration of advanced technologies. The system engineering methodology was the key to achieve optimization in system-level. Major
tasks of system design include mission analysis, system design, system simulation
and analysis, definition of system and subsystem specification and interface, design
and implementation of system integration, test and validation for the lander.
To achieve lunar soft landing, the function of lunar lander should include:
(1) To perform Lunar Transfer Orbit (LTO) and lunar orbiting after separation
from the launch vehicles;
(2) To perform powered descent and soft landing;
(3) To be landed safely at predefined area on lunar surface with proper velocity,
attitude and accuracy, and providing a stable platform after landing;
(4) To perform in situ exploration after landing and send scientific data back to
Earth, i.e. to support scientific payloads working on lunar surface with suitable
condition such as installation, view, orientation, thermal condition and power
supply.
Detail information of system design for lunar lander is given in this chapter including
principles of system design, mission analysis, trajectory design, system specification,
spacecraft configuration design, telecommand and telemetry, powered descent and
landing, landing stability analysis and simulation, and etc.
© National Defense Industry Press and Springer Nature Singapore Pte Ltd. 2021
D.-Y. Yu et al., Technology of Lunar Soft Lander, Space Technology Library 38,
https://doi.org/10.1007/978-981-15-6580-9_3
51
System Design of Lunar Lander
3.1 Introduction
The system design of lunar lander usually included system-level design and analysis
for the lander during the life cycle of the lander development. The objective of the
system design was to provide an optimized spacecraft system solution meeting with
specific requirements by integration of advanced technologies. The system engineering methodology was the key to achieve optimization in system-level. Major
tasks of system design include mission analysis, system design, system simulation
and analysis, definition of system and subsystem specification and interface, design
and implementation of system integration, test and validation for the lander.
To achieve lunar soft landing, the function of lunar lander should include:
(1) To perform Lunar Transfer Orbit (LTO) and lunar orbiting after separation
from the launch vehicles;
(2) To perform powered descent and soft landing;
(3) To be landed safely at predefined area on lunar surface with proper velocity,
attitude and accuracy, and providing a stable platform after landing;
(4) To perform in situ exploration after landing and send scientific data back to
Earth, i.e. to support scientific payloads working on lunar surface with suitable
condition such as installation, view, orientation, thermal condition and power
supply.
Detail information of system design for lunar lander is given in this chapter including
principles of system design, mission analysis, trajectory design, system specification,
spacecraft configuration design, telecommand and telemetry, powered descent and
landing, landing stability analysis and simulation, and etc.
© National Defense Industry Press and Springer Nature Singapore Pte Ltd. 2021
D.-Y. Yu et al., Technology of Lunar Soft Lander, Space Technology Library 38,
https://doi.org/10.1007/978-981-15-6580-9_3
51