The software developed by Yuzhnoye Design Office is used for space hardware analysis, graphic display, data comparison, quick-look analysis.

Applications are user-friendly and adapted for networking.

Launch vehicle, booster stage, and spacecraft trajectory prediction software

The software package includes:

1. Launch vehicle and booster stage optimal trajectory selection program
2. Program for rocket-propelled vehicle trajectory prediction for flights in the atmosphere and near and deep space
3. Program for reentering object trajectory prediction
4. Launch vehicle payload capability analysis program
5. Program for prediction of spacecraft, object, and separated stage orbit elements evolution
6. Program for launch vehicle perturbation calculation in all flight segments.
7. Program for estimation of orbit adjust and maneuvering profiles
8. Program for evaluation of a priori and a posteriori injection accuracy
9. Program for assessment of dangerous rendezvous between launch vehicle and orbital objects during ascent.

Software for automated processing and analysis of test data

Test data processing software is designed for

• Storage of test data in a database
• Automated analysis of test data
• Mathematical processing of raw data
• Quick plotting and test reporting.

The software provides:

1. Working with various data formats
2. Storage of test data in a database
3. Quick review of parameter plots during test, with different parameters of one or several tests displayed on one plot; plot printout.
4. Multiuser database operation using network
5. Mathematical processing of raw data:

• Building of many-dimensional regression relationships between parameters; selection of relationships using a specified formula
• Statistical analysis of specified sampled information, building of sampling bar charts
• Analysis of launch timing characteristics
• Analysis of derivative parameters
• Data filtering through various filters.

The software system enables quick and high-quality processing and analysis of test data and comparison of data from various tests. The client/server configuration of the software system supports multiuser test database operation.

The software for automated processing, acquisition, and analysis of liquid-propellant rocket engine test data has been in operation since 2000. It has been upgraded several times to meet current requirements: algorithms have been improved, interface enhanced, and new capabilities for data analysis added. Based on experience of the software application, this system significantly reduces time spent for test data analysis and reporting and improves the analysis quality.

Analysis of operational and geometrical parameters of screw pumps

The procedure and software for analysis of operational and geometrical parameters of screw pumps were designed to improve anticavitation properties and performance.

Basic analysis output parameters:

• Basic parameters of impeller
• Parameters of inlet section
• Parameters of discharge section
• Parameters of impeller in intermediate sections
• Verification of blade coordinates and blade twist parameters
• Parameters of the impeller inlet flow
• Impeller outlet parameters
• Resistance head and performance of the impeller
• Drawing parameters
• Bushing dimensions
• Plot. 

The method enables quick analysis and optimization of operational and geometrical parameters of screw pumps to improve anticavitation properties and performance. The method was successfully verified during development and testing of operational and geometrical parameters of screw pumps.

This method is successfully applied to evaluate geometrical parameters of screw pumps in various liquid-propellant rocket engines. Calculations based on the proposed method are supported by test data.

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