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Aerospace starter & generator test benches test different aero-generators, include starters, generators, and starters & generators. According to the tested object, the test bench can be dynamometer directly connect to the tested object, or by the gearbox.
Key parameters:
Rated power range: 1kW to 3MW
Maximum speed range: 1000rpm to 100krpm
Rated torque range: 1N.m to 10000N.m
Torque measurement accuracy：0.05%FS
Torque control accuracy：±0.2% to ±0.5%FS
Speed measurement accuracy：±1rpm
Main test contents:
Efficiency MAP test
External characteristic test
Torque test
Speed test
Temperature rise test
Over-load test
Steady-state test
Maximum speed test
Durability with temperature climate test
User-defined cycle condition test
Electrical inertia simulation test
Controller calibration test
Accelerated response test
Torque response test
Lock-rotor test
Grid-connected switching test for power generation
Dynamometer & Mechanical System: A high-dynamic asynchronous or synchronous motor is selected as the dynamometer, equipped with a high-speed drive shaft system and precision, reliable mechanical components.
Frequency Converter: A four-quadrant frequency converter is adopted for dynamic or steady-state control of the dynamometer. It enables control of rotational speed, torque, allowing the dynamometer to operate in either motoring or generating mode.
DC/AC Power Supply: Supply power to the starter to simulate the start condition, generally, the current is large. According to the parameters of tested aerospace starter, the power parameters as follows:
Rated power range: 5kW to 2MW
Current range: 0 to ±2000A
DC voltage range: 12VDC to 1200VDC
AC voltage range:115VAC to 400VAC
Electric load: Absorbs the electrical energy from the generator and simulates the characteristics of the power-consuming equipment. JKT provides resistive load, inductive load, capacitive load, as well as regenerative electronic load.
Power Analyzer & Mobile Cart: A high-precision power analyzer is used to measure parameters such as current, voltage, efficiency and harmonics of the motor and controller. It can also receive torque and speed signals synchronously for calculating the motor’s mechanical efficiency.
MCU Power Supply: Provides an adjustable low-voltage power supply for the motor controller.
Test Object Cooling System: According to different tested objects, there are air-cooling system and hydraulic system. The air-cooling system provides adjustable flow rate air for the tested object. The hydraulic system provides the lubricating and cooling oil for the tested object.
Generally, the maximum temperature of the oil is very high, up to 200℃, the hydraulic system adopts high-temperature resistant hydraulic components such as pumps and valves, and is equipped with temperature and pressure compensation. It can generally operate at 180℃~200℃, while enabling precise pressure or flow control.
Climate Chamber: Provides a simulated operating environment with controllable high/low temperature and humidity for the test objects.
Automated Measurement & Control System: Conducts overall control and condition monitoring of the entire motor test bench.
700kW 30000rpm & 18000rpm Test bench for aero-generators
100kW 20000rpm Test bench for aero- starter & generator
16.5kW 65000rpm Test bench for aero-generators
The oil cooling system of the aero starter-generator test bench adopts high-temperature-resistant hydraulic components such as pumps and valves, and features temperature and pressure compensation. The system can typically operate under working conditions of 180℃ to 200℃, while achieving accurate pressure or flow control.
The oil cooling system for aero-generators
The air cooling system for aero-generators
The aerospace starter-generator altitude climate simulation test bench provides a simulated altitude environment for the test piece to conduct performance and reliability tests. The dynamometer is installed outside the altitude chamber and connected to the starter-generator inside the chamber via a high-speed sealed shaft to supply driving power or load. Depending on the test piece, an air-cooling system or an oil-cooling system can be provided to lubricate and cool the test piece within the altitude chamber.
The inlet and outlet air ducts of the air-cooling system are connected to the altitude chamber, forming an internal circulation system. The temperature of the cooling air can be controlled in the pipeline, enabling the supply of cooling circulating air to the test piece under conditions consistent with the simulated high-altitude environment, so as to test the thermal load characteristics of the test piece.
Key parameters:
Rated power range: 1kW to 3MW
Maximum speed range: 1000rpm to 100krpm
Rated torque range: 1N.m to 10000N.m
Torque measurement accuracy：0.05%FS
Torque control accuracy：±0.2~±0.5%FS
Speed measurement accuracy：±1rpm
Altitude range: sea level to 20,000m
Temperature range: -55℃~200℃
Main test contents:
Efficiency MAP test
External characteristic test
Torque test
Speed test
Temperature rise test
Over-load test
Steady-state test
Maximum speed test
Durability with high altitude climate test
User-defined cycle condition test
l Electrical inertia simulation test
Dynamometer & Mechanical System: A high-dynamic asynchronous or synchronous motor is selected as the dynamometer, equipped with a high-speed drive shaft system and precision, reliable mechanical components.
Frequency Converter: A four-quadrant frequency converter is adopted for dynamic or steady-state control of the dynamometer. It enables control of rotational speed, torque, allowing the dynamometer to operate in either motoring or generating mode.
DC/AC Power Supply: Supply power to the starter to simulate the start condition, generally, the current is large. According to the parameters of tested aerospace starter, the power parameters as follows:
Rated power range: 5kW to 2MW
Current range: 0 to ±2000A
DC voltage range: 12VDC to 1200VDC
AC voltage range:115VAC to 400VAC
Electric load: Absorbs the electrical energy from the generator and simulates the characteristics of the power-consuming equipment. JKT provides resistive load, inductive load, capacitive load, as well as regenerative electronic load.
Power Analyzer & Mobile Cart: A high-precision power analyzer is used to measure parameters such as current, voltage, efficiency and harmonics of the motor and controller. It can also receive torque and speed signals synchronously for calculating the motor’s mechanical efficiency.
MCU Power Supply: Provides an adjustable low-voltage power supply for the motor controller.
Test Object Cooling System: According to different tested objects, there are air-cooling system and hydraulic system. The air-cooling system provides adjustable flow rate air for the tested object. The hydraulic system provides the lubricating and cooling oil for the tested object.
Generally, the maximum temperature of the oil is very high, up to 200℃, the hydraulic system adopts high-temperature resistant hydraulic components such as pumps and valves, and is equipped with temperature and pressure compensation. It can generally operate at 180℃~200℃, while enabling precise pressure or flow control.
The air inlet and outlet of the air-cooling system are connected to the altitude chamber, forming an internal circulation system. The temperature of the cooling air can be adjusted by the temperature control system which installed after outlet of the circulating fan, which supplies cooling circulating air to the test piece under the same conditions as the simulated high-altitude environment, so as to test the thermal load state of the test piece.
Altitude Climate Chamber: Provides a simulated altitude environment for the test piece, allowing for the adjustment of temperature, air pressure, and humidity inside the chamber.
Pressure range: atmospheric pressure 4.4 kPa, it can continuously work under 4.4 kPa
Relative humidity range: 10...98 % RH @ 8...95 °C
Temperature range: -70…+150 °C
Stability at one point in time : ± 0,5°C
Resolution for display: 0, 1°C
Space homogeneity: ± 2°C
Proper interfaces for connecting electrical lines, oil piping and ventilation air
Automated Measurement & Control System: Conducts overall control and condition monitoring of the entire motor test bench.
400kW 30000rpm Altitude Climate Simulation Test bench for aero-generators
200kW 20000rpm Altitude Climate Simulation Test bench for aero-generators
The aviation transmission system test bench is used for performance and reliability testing of various transmission systems, such as IGB, TGB, AGB, as well as complete transmission assemblies. It can perform lubrication condition testing, gear meshing dynamic stress testing, sealing performance testing, simulated flight cycle testing, vibration testing, running-in testing, load testing, and more.
Case 1: High-Speed Transmission Shaft Test Bench
Key Parameters:
Drive and Loading Unit
Rated power: 800 kW
Maximum speed: 30,000 rpm
Rated torque: 600 N·m
Axial adjustment range: ±500 mm
Horizontal radial adjustment range: ±6 mm, adjustment accuracy: 0.01 mm
Test Piece Lubrication System
Flow rate control range: 0~20 L/min
Pressure control range: 0~1 MPa
Temperature control range: 40℃~200℃
800kW 30000rpm Transmission Test bench for drive shafts
Case 2: Transmission System Test Bench
Key Parameters:
Drive Unit:
Rated power: 1100 kW
Maximum speed: 30,000 rpm
Rated torque: 600 N·m
Loading Units:
Four sets of loading units, used to simulate different loads respectively, such as fuel pumps,
generators, etc.
Maximum speed: 5,000rpm to 30,000 rpm
Rated power: 10kW to 300 kW
The drive and loading units are connected to the test piece using special couplings, which can
withstand an eccentricity of ±1 mm at high speeds
Test Piece Lubrication System
Flow control range: 0~20 L/min
Pressure range: 0~1 MPa
Temperature range: 40℃~200℃
Multi-shaft Transmission testbench for aerospace transmissions
15 Tianhu Road, High-tech Zone, Hefei City, Anhui Province
0551-62885653
18164485259
The company has a dedicated manufacturing and processing base and after-sales service team, which can provide a strong guarantee for the on-time, high-quality completion of contract projects and timely and excellent after-sales service.
