|
Object
|
Problem
|
The achieved result
|
|
Gas-turbine engine

|
The improving of engines fan effectiveness |
|
The
increasing in the fan efficiency up to 3% was achieved by optimal
profiling of its blades vanes and passage, which allowed to have
the optimal distribution of compression work between the stages
and by the radius. Dimensionality - up to 63.
|
| The improving of engines fuel economy at throttled
operating modes |

|
The optimal control laws of engines passage controllable
elements were obtained, which allowed to decrease the specific fuel
consumption at throttled operating modes up to 8% due to optimal coordination
of engines functional elements work. Dimensionality - up to 14. |
| The decreasing of engines acceleration time |

|
The optimal time control laws of passage controllable
elements were achieved, which allowed to decrease the acceleration
time 1.5 times as less due to optimal coordination of all control
efforts during transitional process. Dimensionality - 20. |
|
Multistage axial flow compressor for engine with
high bypass ratio
|
The improving of the high pressure compressor effectiveness |

|
The high pressure compressor efficiency was increased by 1.5% due
to its optimal profiling. The rise of effectiveness was reached
due to optimal coordination of gas-dynamic parameters of work of
elementary vanes in a system of the compressor. Dimensionality -
up to 96.
|
| The improving of middle pressure compressor effectiveness |

|
The middle pressure compressor efficiency was increased
by 1.7% due to optimal control laws of its stator blades. The optimal
structure of compressors stator blades control was determined. The
rise in effectiveness was provided by optimal distribution of compression
work between compressors stages. Dimensionality - 5. |
|
Heat machine

|
Remaking of aircraft engine without operational resource
in heat machine with minimal modifications |

|
The fuel economy of heat machine was improved by more
then 10%. Optimal coordination of components of engines without operational
resource was carried out for their operation in a complex of heat
machine. |
| The technological process

|
Improving of metal structures welding technologies |

|
Just in industrial process due to optimal coordination
of 13 technological parameters the improving of strength indicators
of metal structures welded joint by 14% was achieved. |
|
Gas-turbine engine with high bypass ratio

|
The increasing of engines fan effectiveness at engines
take-off and cruising operating modes simultaneously |

|
The means was proposed to increase fans rotor efficiency
by 2.5% for engines take-off operating mode and by 2% for its cruising
operating mode by means of optimal profiling of fans rotor blades.
The advantage in effectiveness was reached due to optimal distribution
of rotor blades work by the radius. Dimensionality-19. |
| Military aircraft

|
Improving of aircraft maneuverability |
 |
Optimal control laws of power plant controllable elements
and of the aircraft were determined, which allowed to reduce the time
of aerobatics maneuvers making by 5-10%. The dimensionality of optimization
problems - up to 70 variables. |
| automobile engine

|
Insurance of best fuel economy under securing of required
level of exhaust toxicity (NOx, COetc.). |

|
Engines fuel economy was improved by up to 6%. Optimal
calibration of electronic fuel supply and ignition control system
was carried out. Dimensionality - up to 6. |
|
Multilayer optical coverings

|
Insurance of minimal values of reflection (adsorption)
ratios of the surface in given range of wave lengths. |
 |
Optimal values of surface multilayer optical covering
layer thickness were determined, which assured the considerable reducing
of reflection ratio on given range of wave length. The dimensionality
of optimization problems - up to 96 variables. |
|
STOVL aircraft power plant

|
Improving of aircraft take-off performance for its short
take-off |

|
There were determined optimal time control laws of 7
controllable elements of power plant passage, of angles of nozzles
setting and aircraft pitch, which allowed to reduce the length of
take-off run by 2.5 times comparing with ordinary power plant control.
Dimensionality - 49 variables. |
|
All-wheels driven car transmission

|
Increasing of wear-resistance and durability of automobile
transmission parts. |

|
Optimal values of car transmis- sion 38 structure-arrangement
parameters were determined, insuring improving of 5 effecti- veness
indicators by 6 to 85%. |
|
Multistage axial flow compressor

|
The increasing of the compressor efficiency for the
design-point operating mode. |

|
The solution was obtained, which improved the compressor
efficiency up to 4% for the design-point operating mode. The optimal
profiling of the compressor blade rows was performed, which allowed
to redistribute optimally the work of stages. Dimensionality - 140. |
| The search of a compromise between the compressor efficiency
and stall margin. |

|
4 non-improvable (Pareto- optimal) solutions were found,
ensuring the compromise between the compressor efficiency and stall
margin for the design-point operating mode. Dimensionality - 140. |
| The increasing of the compressor efficiency for the
off-design operating modes. |

|
The optimal control laws of the compressor stator blades
were found, which allowed to improve the compressor efficiency up
to 2.4% for the off-design operating modes. |
| The increasing of the probability of the compressor
design parameters practical implementation. |

|
The optimal profiling of the compressor blade rows was
performed taking into account their manufacturing accuracy. For the
first time the multicriteria stochastic optimization problem has been
solved with the dimensionality of 140 variables and 3 criteria. There
was obtained the set of Pareto- optimal solutions by the criteria:
the efficiency, the probability of constraints keeping, the effectiveness
parameters spread. |