Electro-Hydraulic Drives of Remote Control of Launch System
Remote control drives are designed to provide movement control of support trusses (ST), pilot devices (PD), low launch umbilical tower (LLUT), and top launch umbilical tower (TLUT) of launch system.
The drives are designed:
- to bring all the four of the supporting trusses together up to closing, to interlock upper force ring, to elevate TLUT, and to keep ST and TLUT in operating position;
- to put two LLUT and four PD to operation position and retrace them into initial position.
The drives operate in maritime tropical climate:
- at ambient temperature from 23 to 34 ºС;
- under air humidity up to 97%;
- in foggy and dusty environment;
- after vibration and acoustic impact of gas jets of carrier rocket engines during its start and initial flight path.
Power supply of electro hydraulic drive for remote control of launch pad and TLUT hydraulic drive:
- Current: 3-phase AC
- Voltage: (380 ± 19) V
- Frequency: (50 ± 0.4) Hz
Electro-Hydraulic Servo Drive of Flight Simulator
Electro Hydraulic Servo Drive is designed to control 6-DOF flight simulator.
AYuIZh.306151.003 Directional Control Valve:
| Feature | Value |
|---|---|
| Max. flow rate at pressure difference of∆р=1MPa,at least, l/min, | 300 |
| Operating pressure, MPa | 50 to 300 |
| Bandwidth at UC=0.25 UC.МАХ, at least, Hz | 20 |
AYuIZh.303369.003 Hydraulic Power Unit:
| Feature | Value |
|---|---|
| Nominal pressure, MPa | 9+0.2 |
| Nominal flow rate, l/min | 1.5 |
| Power consumption, kW | 90 |
| Max. flow rate of hydraulic fluid, l/min | 50 |
| Warranty life | 5 years since putting into operation |
AYuIZh.306568.001 Hydro-Pneumatic Accumulator Unit:
| Feature | Value |
|---|---|
| Nominal pressure, MPa | 9+0.2 |
| Peak flow rate during 1.5 seconds, l/min | 1100 |
| Min. pressure, MPa | 7,5 |
| Internal volume, l | 15 |
| External volume, l | 110 |
Hydraulic System for Launch-and-Recovery System of Wet Bell (WB LARS)
WB LARS Hydraulic System is designed:
- to rotate winch spools of wet bell (WB), load anchor (LA), and cable-hose bunch reel (CHBR) with force, speed and direction according to operating modes of these devices;
- to move rodsofhydraulic cylinders of WB and LAheave compensators to provide WB stable position and fixed specified tension of LA cable while heaving;
- to move closing shutters of the trunk;
- to batten shutters and to fix LA and centering frame (CF);
- to release brakes of WB and LA winches and CHBR.
Performance Characteristics of WB LARS Hydraulic System:
| Feature | Value |
|---|---|
| Max. pressure in decreasing spaces of pumping units,MPa (kgf/cm2) | 30 (300) |
| Rotating speed of drive motor, rpm | 1500 |
| Displacement range, cm3/rev. | 0 to 165 |
| Pressure of service pump providing fluid makeup and operation of control mechanism, fixation, and brake devices, MPa (kgf/cm2) | 2 (20) |
| Pressure of service pump providing control of closing shutters, MPa (kgf/cm2) | 4.5 (45) |
| Service pump displacement, cm3/rev. | 50 |
| Drive motor power, kW | 55 |
| Displacement of hydraulic motors, cm3/rev. | 160 |
| Maximum torque of hydraulic motor, Nm, at least | 350 |
| Tension of cable-hose bunch, MPa (kgf/cm2) | 2.2 (22) |
| Maximum tension of LA cable, MPa (kgf/cm2) | 15 (150) |
| Nominal diameter of control valves, mm | 20 |
| Nominal diameter of "pilots", mm | 6 |
| Reservoir volume, m3 | 1.2 |
| Volume of hydraulic fluid in the reservoir, m3 | 0.6 |
| Hydraulic fluid | MGE-10A oil as per OST 38.01281-82 |
| Heat exchanger type | VZh 7.9-15Y0.299.029 TU |
| Electric power supply of drive motors, V, Hz | 380, 50 |
| Operation environment: Sea state according to HQ of Meteorological Office, grades Ambient temperature, °С | 5 -40 to +40 |
| WB LARS weight (excluding the weight of SPTA, GMK, EMK and oil ) max., kg | 4000 |