QJ 2744-1995 in English

Ground static test method of turbojet engines of missile

1 Subject content and application scope

This standard specifies the requirements of test apparatus, test documents, test preparation, test contents and steps, and test result processing for ground static test of turbojet engines of missile.

This standard is applicable to the performance test, factory test, acceptance test, life test, ignition start test, etc. of turbojet engines of missile (hereinafter referred to as “engines”).

2 Normative references

QJ 2655.1~2655.6 Measuring method for parameters of missile used turbojet and turbofan engines

3 Terms

3.1
ground static test
engine test in which the engine under test is installed on the thrust frame of the ground aero-engine test bench, and the airflow velocity in the far front is zero

3.2
dry starting
a process of driving the engine to a certain speed using starting energy, and then disconnecting the starting energy to stop after stabilizing for a period of time, during the driving, the engine will not supply fuel and not ignite

3.3
wet starting
a process of driving the engine to a certain speed using starting energy, and then disconnecting the starting energy to stop after stabilizing for a period of time, during the driving, the engine will supply fuel but not ignite

3.4
cold sensibility time
time interval during which the engine speed is decreased from n1 to n2 when the starting energy is disconnected in the process of dry starting

1 Subject content and application scope
2 Normative references
3 Terms
4 Test apparatus
5 Test documents
6 Test preparation
7 Test methods and steps
8 Test result processing
Additional explanation