Liquid rocket power system commissioning method and device

Abstract

The invention discloses a liquid rocket power system commissioning method and device, which is used for a power system part section with a landing support. The liquid rocket power system commissioningdevice includes a plurality of foot fixed units, a counterweighing unit, an engine control unit, a data collecting measuring unit and an analyzing unit; the foot fixed units are correspondingly usedfor bearing and fixing all stand bars of the landing support, the counterweighing unit is arranged on the landing support and / or the inner part of the power system part section, the engine control unit is used for controlling operation of starting and stopping of an engine, the data collecting measuring unit is used for collecting commissioning state parameters of the power system part section, and data analyzing is conducted through the analyzing unit according to the commissioning state parameters collected by the data collecting measuring unit and preset conditions to obtain analyzing results. The scheme is applied, on the basis that the good assessment effect is achieved, commissioning cost can be effectively lowered, and application prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of rocket test runs, in particular to a liquid rocket power system test run method and a device thereof. Background technique [0002] In the initial stage of the development of the liquid rocket power system, it is necessary to confirm the correctness of the system design through the test run of the power system, including the compatibility of the work between the subsystems and the applicability of the product quality control method, etc., to verify the reliability of the product. Therefore, the power system test run is an important assessment and verification link before the power system products are delivered to the final assembly of liquid rockets. [0003] As we all know, for the liquid rocket power system test run, since the propellant is a liquid medium, the power system section needs to be in a vertical state during the test run, and the engine is located below the section to facilitate the normal d...

AI Technical Summary

Problems solved by technology

[0005] 1) It is carried out under the condition that the final assembly of the rocket is completed. Once a danger occurs, the loss will be relatively huge, and the maturity of the product is required to be higher, which is suitable for the mature application stage of the product; that is to say, the test plan cannot be applied to the product development stage

[0006] 2) In addition, the construction of the launch pad used in this scheme requires a greater capital investment

[0008] 1) The test bench has a great influence on the mechanical vibration environment, which affects the assessment effect

[0009] In order to carry and fix the power system section, the power system test bench usually has a relatively thick design and is relatively stable, but there may be a problem of excessive margin

If it is too heavy, it will change the distribution of the original mechanical vibration environment when the power system is working, or weaken the vibration level of the mechanical environment. ignore

Obviously, the above-mentioned potential failures such as the mechanical environment are brought into the actual flight test of the rocket, leading to more serious consequences

[0010] 2) The interface relationship of the test bench is complicated, which affects the assessment effect

[0011] In addition to the normal load-bearing interface structure, gas supply, liquid supply, testing and other aspects also rely on the guarantee of the test bench, resulting in too many interfaces

It not only increases the complexity of the test process and the difficulty of coordination, but also may change the original state of the product and weaken the effect of the assessment

[0012] 3) The number of test run preparation links increases, and the test run cycle is extended

[0013] The test process design involves the self-inspection process of the test bench and the docking link between the product and the test bench. Moreover, after the product is docked with the test bench, a system-wide matching test between the product and the test bench is added to confirm the compatibility and correctness of many interfaces. and whether the state of the product is normal after it is put on the stage (the product may affect the state of the product itself during the process of putting the product on stage), resulting in a substantial increase in the test run cycle

[0014] 4) Huge investment in construction

[0015] The construction investment of this test bench needs to reach hundreds of millions of yuan, and the construction period must be more than one year, which cannot be applied to start-up commercial aerospace enterprises.

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