power matches the working condition best, the preinstallation detection is
convenient, the pipeline loss is very small, the energy comes with itself, and the
reliability is guaranteed by the components. The disadvantage of this method is
that the self-contained energy of components causes repeated settings, and the
weight, volume, and cost are uneconomical. The power of each subsystem
cannot be adjusted mutually, and the structure layout is not reasonable.
In Aspide missile-borne auxiliary energy sources, the primary energy source of
the missile-borne auxiliary energy source (gas turbine generator and loading
valve), the pilot steering gear hydraulic power source (gas turbine hydraulic
pump and limiting valve), and the seeker antenna hydraulic power source (gas
turbine pump and reducing valve) are solid propellant gas turbines, three
sources are integrated and are comprehensively utilized, as shown in Fig. 9.24.
The advantages of this kind of combined energy are the weight, volume, and
cost are more economical, the power among the subsystems can be adjusted to
a certain extent, and the structure layout is more reasonable. The disadvantage
is that the subsystem energy is not independent because of the primary common
source, the energy is easy to interfere with each other, and there is a
“cross-link” problem. Isolation measures must be adopted, and that makes the
system more complex and to some extent affects the reliability. In addition, it is
not easy to achieve the best matching between power and working conditions,
inconvenient to detect before installation, and has a large loss of pipeline. The
main reasons why Aspide missile-borne auxiliary energy system does not
follow the old system of independent separate source excretion of its prototype
Sparrow series, but adopts the new system of integrated common source circulation are as follows:
1. Needs of task. It mainly refers to the increase of flight time. Compared with
the Sparrow series, the thrust of the Aspide solid rocket motor increases
with the increase of its length. Considering the initial velocity of the aircraft,
the longest working time of the missile is 60 s. From the optimum working
band diagram of missile-borne energy, it is more reasonable to adopt pump
hydraulic circulation system than extrusion hydraulic circulation system.
2. Possibility at reality. Aspide energy systems designer firmly grasps the two
aspects of comprehensive utilization of missile-borne auxiliary energy and
miniaturization of missile-borne equipment. Based on the technology of
Sparrow series gas generator, gas turbine, alternator, and gas turbocharged
accumulator, combining combustion, electricity, liquid, and machine, a
centralized and unified miniaturized electro-hydraulic energy combination,
together with other small and exquisite hydraulic accessories, is developed,
which can not only be loaded in space, but also has lighter weight than the
independent and dispersed ones.
3. Performance assurance. It is mainly to take some isolation measures to
improve the “interconnection” among the three subsystems and ensure their
respective performance. These measures are as follows:
102
9 High-Temperature and High-Speed Gas Turbine Pump …
convenient, the pipeline loss is very small, the energy comes with itself, and the
reliability is guaranteed by the components. The disadvantage of this method is
that the self-contained energy of components causes repeated settings, and the
weight, volume, and cost are uneconomical. The power of each subsystem
cannot be adjusted mutually, and the structure layout is not reasonable.
In Aspide missile-borne auxiliary energy sources, the primary energy source of
the missile-borne auxiliary energy source (gas turbine generator and loading
valve), the pilot steering gear hydraulic power source (gas turbine hydraulic
pump and limiting valve), and the seeker antenna hydraulic power source (gas
turbine pump and reducing valve) are solid propellant gas turbines, three
sources are integrated and are comprehensively utilized, as shown in Fig. 9.24.
The advantages of this kind of combined energy are the weight, volume, and
cost are more economical, the power among the subsystems can be adjusted to
a certain extent, and the structure layout is more reasonable. The disadvantage
is that the subsystem energy is not independent because of the primary common
source, the energy is easy to interfere with each other, and there is a
“cross-link” problem. Isolation measures must be adopted, and that makes the
system more complex and to some extent affects the reliability. In addition, it is
not easy to achieve the best matching between power and working conditions,
inconvenient to detect before installation, and has a large loss of pipeline. The
main reasons why Aspide missile-borne auxiliary energy system does not
follow the old system of independent separate source excretion of its prototype
Sparrow series, but adopts the new system of integrated common source circulation are as follows:
1. Needs of task. It mainly refers to the increase of flight time. Compared with
the Sparrow series, the thrust of the Aspide solid rocket motor increases
with the increase of its length. Considering the initial velocity of the aircraft,
the longest working time of the missile is 60 s. From the optimum working
band diagram of missile-borne energy, it is more reasonable to adopt pump
hydraulic circulation system than extrusion hydraulic circulation system.
2. Possibility at reality. Aspide energy systems designer firmly grasps the two
aspects of comprehensive utilization of missile-borne auxiliary energy and
miniaturization of missile-borne equipment. Based on the technology of
Sparrow series gas generator, gas turbine, alternator, and gas turbocharged
accumulator, combining combustion, electricity, liquid, and machine, a
centralized and unified miniaturized electro-hydraulic energy combination,
together with other small and exquisite hydraulic accessories, is developed,
which can not only be loaded in space, but also has lighter weight than the
independent and dispersed ones.
3. Performance assurance. It is mainly to take some isolation measures to
improve the “interconnection” among the three subsystems and ensure their
respective performance. These measures are as follows:
102
9 High-Temperature and High-Speed Gas Turbine Pump …