This page has only limited features, please log in for full access.

Unclaimed
Andrzej Majka
(Department of Aircrafts and Aircraft Engines, Rzeszow University of Technology, Rzeszow, Poland

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 01 January 2018 in Scientific Letters of Rzeszow University of Technology - Mechanics
Reads 0
Downloads 0
ACS Style

Grzegorz Drupka; Andrzej Majka; Tomasz Rogalski; Leszek Trela. An airspace model aplicable for automatic flight route planning inside free route airspace. Scientific Letters of Rzeszow University of Technology - Mechanics 2018, 5 -18.

AMA Style

Grzegorz Drupka, Andrzej Majka, Tomasz Rogalski, Leszek Trela. An airspace model aplicable for automatic flight route planning inside free route airspace. Scientific Letters of Rzeszow University of Technology - Mechanics. 2018; (1/2018):5-18.

Chicago/Turabian Style

Grzegorz Drupka; Andrzej Majka; Tomasz Rogalski; Leszek Trela. 2018. "An airspace model aplicable for automatic flight route planning inside free route airspace." Scientific Letters of Rzeszow University of Technology - Mechanics , no. 1/2018: 5-18.

Research article
Published: 20 March 2017 in Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Reads 0
Downloads 0

In order for remotely piloted aircraft systems (RPAS) to operate in unsegregated airspace, one of the most important risks to mitigate is that of the mid-air collision. The RPAS must be capable of detecting the potential for a mid-air collision and performing avoidance maneuvers at normal flight conditions and under contingency or emergency conditions. In particular, when the link is severed the RPAS will become “uncontrolled” by the remote pilot, but the loss of link does not imply the loss of the remotely piloted aircraft. A D&A system is required for safe operations of RPAS in airspace shared with other aircraft, including manned aircraft. The onboard system of an unmanned aircraft has to be equipped with an efficient detection and early risk analysis system, as well as a system assisting the pilot in making a decision or an autonomous control system able to perform a maneuver to avoid collision. Collision avoidance maneuvers should be planned by taking into account the operational specificities of the RPAS. The resolution advisory’s strength and direction could be adapted to the capabilities of the RPAS. For example, horizontal resolution advisories could be introduced for RPAS unable of reaching the vertical acceleration/speeds required for vertical resolution advisories. The selection of types of sensors, their sensitivity and range can be made by taking into account RPAS maneuverability. The traffic advisory and resolution advisory regions could be defined by the same circumstances, among others. The aim of this work is to determine an optimal trajectory of horizontal avoidance maneuver of a mini remotely piloted aircraft, minimizing the time of performing a maneuver when avoiding a manned aircraft flying at a much higher speed, guaranteeing a minimally required distance between the passing objects.

ACS Style

A Majka. Remotely piloted aircraft system with optimum avoidance maneuvers. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 2017, 232, 1247 -1257.

AMA Style

A Majka. Remotely piloted aircraft system with optimum avoidance maneuvers. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 2017; 232 (7):1247-1257.

Chicago/Turabian Style

A Majka. 2017. "Remotely piloted aircraft system with optimum avoidance maneuvers." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 232, no. 7: 1247-1257.

Journal article
Published: 03 May 2016 in Aircraft Engineering and Aerospace Technology
Reads 0
Downloads 0

The purpose of the paper is to determine the optimal conditions of the take-off and the optimal trajectory of the initial climb minimizing the fuel consumption of the aircraft aided in the ground phase of the take-off by the system using the MAGLEV technology. The study concerned determining the optimal trajectory of the initial phase of the transport aircraft climb aided in the phase of acceleration by the system using the magnetic levitation phenomenon. The simplified algorithm of the Ritz–Galerkin method was used in this work which uses an approximate solution to boundary value problems for determining the optimal flight trajectory. It uses the method of approximation of the flight path by the third-degree polynomial. The method allows determining the optimal trajectory of the flight satisfying the initial/final conditions and control functions and path constrains for an aircraft. General stating of the task supposes determining the optimal trajectory of movement of a flying vehicle described by the system of ordinary differential equations. The resulting sparse non-linear programming problem has been solved using own elaborated software. The typical profiles computation has been performed with a tool combining three degree of freedom flight dynamics differential equations with procedure-oriented flight control. Different conditions of the take-off of the aircraft aided by the ground system using the MAGLEV technology give possibilities to shape the trajectory of the initial stage of the aircraft climb after the lift-off to decrease the negative influence on the environment. Optimization of the departure trajectory minimizing fuel consumption or noise emissions can become the basis for working out new procedures for a new kind of take-off modified in relation to the optimal solution which will increase the safety of this segment of the flight. The analysis was carried out only for the departure trajectory to minimize fuel consumption, without investigation of possibilities of noise reduction. The trajectory guaranteeing minimization of the fuel consumption would also give a solution characterized by minimal emission of substances harmful for the environment. Application of the innovatory solution of aided take-off is connected with modification of the climbing procedures after the take-off to minimize the negative effect of the aircraft on the surrounded environment. The results can become the basis for working out new procedures which will minimize negative influence to the natural environment in the vicinity of the airports of air transport and increase safety of the take-off and landing operations. Innovative method of the take-off implies new shape of the trajectory. The study presents the results of the climb trajectory optimization of the aircraft supported at the ground stage by the technology using magnetic levitation phenomenon.

ACS Style

Andrzej Majka. The green trajectory of an aircraft aided during take-off by ground-based system using magnetic levitation technology. Aircraft Engineering and Aerospace Technology 2016, 88, 432 -440.

AMA Style

Andrzej Majka. The green trajectory of an aircraft aided during take-off by ground-based system using magnetic levitation technology. Aircraft Engineering and Aerospace Technology. 2016; 88 (3):432-440.

Chicago/Turabian Style

Andrzej Majka. 2016. "The green trajectory of an aircraft aided during take-off by ground-based system using magnetic levitation technology." Aircraft Engineering and Aerospace Technology 88, no. 3: 432-440.

Journal article
Published: 04 May 2015 in Aerospace
Reads 0
Downloads 0

Unmanned aircraft must be characterized by a level of safety, similar to that of manned aircraft, when performing flights over densely populated areas. Dangerous situations or emergencies are frequently connected with the necessity to change the profiles and parameters of a flight as well as the flight plans. The aim of this work is to present the methods used to determine an Unmanned Aircraft System’s (UAS) flight profile after a dangerous situation or emergency occurs. The analysis was limited to the possibility of an engine system emergency and further flight continuing along a trajectory of which the shape depends on the type of the emergency. The suggested method also enables the determination of an optimal flying trajectory, based on the territory of a special protection zone (for example, large populated areas), in the case of an emergency that would disable continuation of the performed task. The method used in this work allows researchers, in a simplified way, to solve a variation task using the Ritz–Galerkin method, consisting of an approximate solution of the boundary value problem to determine the optimal flight path. The worked out method can become an element of the on-board system supporting UAS flight control.

ACS Style

Andrzej Majka. Trajectory Management of the Unmanned Aircraft System (UAS) in Emergency Situation. Aerospace 2015, 2, 222 -234.

AMA Style

Andrzej Majka. Trajectory Management of the Unmanned Aircraft System (UAS) in Emergency Situation. Aerospace. 2015; 2 (2):222-234.

Chicago/Turabian Style

Andrzej Majka. 2015. "Trajectory Management of the Unmanned Aircraft System (UAS) in Emergency Situation." Aerospace 2, no. 2: 222-234.

Journal article
Published: 29 April 2014 in Aircraft Engineering and Aerospace Technology
Reads 0
Downloads 0
ACS Style

Andrzej Majka. Multiple objective optimization of the power unit for a very light jet. Aircraft Engineering and Aerospace Technology 2014, 86, 234 -241.

AMA Style

Andrzej Majka. Multiple objective optimization of the power unit for a very light jet. Aircraft Engineering and Aerospace Technology. 2014; 86 (3):234-241.

Chicago/Turabian Style

Andrzej Majka. 2014. "Multiple objective optimization of the power unit for a very light jet." Aircraft Engineering and Aerospace Technology 86, no. 3: 234-241.

Journal article
Published: 31 March 2014 in Archives of Transport
Reads 0
Downloads 0

Fleet planning is very important elements in the airlines planning process. Fleet planning should answer the question which types of aircraft are required and how many of them are required taking into account the current and future transportation needs. Decision-making in the field of operations has a character of engineering. This process requires consideration of many factors, dependencies and criteria. The article presents the decision problem formulated in the form of a multi-objective mathematical model. This work preliminarily determines the structure of the transportation system which performs carriages on the local routes.

ACS Style

Andrzej Majka. MULTI-OBJECTIVE OPTIMIZATION APPLIED FOR PLANNING OF REGIONAL EUROPEAN AIRLINE. Archives of Transport 2014, 29, 37 -46.

AMA Style

Andrzej Majka. MULTI-OBJECTIVE OPTIMIZATION APPLIED FOR PLANNING OF REGIONAL EUROPEAN AIRLINE. Archives of Transport. 2014; 29 (1):37-46.

Chicago/Turabian Style

Andrzej Majka. 2014. "MULTI-OBJECTIVE OPTIMIZATION APPLIED FOR PLANNING OF REGIONAL EUROPEAN AIRLINE." Archives of Transport 29, no. 1: 37-46.

Journal article
Published: 01 January 2014 in Journal of KONES. Powertrain and Transport
Reads 0
Downloads 0
ACS Style

Andrzej Majka. FLIGHT PATH MANAGEMENT OF AN AIRCRAFT IN EMERGENCY SITUATION. Journal of KONES. Powertrain and Transport 2014, 21, 328 -334.

AMA Style

Andrzej Majka. FLIGHT PATH MANAGEMENT OF AN AIRCRAFT IN EMERGENCY SITUATION. Journal of KONES. Powertrain and Transport. 2014; 21 (4):328-334.

Chicago/Turabian Style

Andrzej Majka. 2014. "FLIGHT PATH MANAGEMENT OF AN AIRCRAFT IN EMERGENCY SITUATION." Journal of KONES. Powertrain and Transport 21, no. 4: 328-334.

Journal article
Published: 01 January 2014 in Journal of KONES. Powertrain and Transport
Reads 0
Downloads 0
ACS Style

Andrzej Majka. MINIMUM EMISSION UNCONVENTIONAL MAGLEV ASSISTED TAKE-OFF. Journal of KONES. Powertrain and Transport 2014, 21, 336 -342.

AMA Style

Andrzej Majka. MINIMUM EMISSION UNCONVENTIONAL MAGLEV ASSISTED TAKE-OFF. Journal of KONES. Powertrain and Transport. 2014; 21 (4):336-342.

Chicago/Turabian Style

Andrzej Majka. 2014. "MINIMUM EMISSION UNCONVENTIONAL MAGLEV ASSISTED TAKE-OFF." Journal of KONES. Powertrain and Transport 21, no. 4: 336-342.

Journal article
Published: 14 October 2013 in Aircraft Engineering and Aerospace Technology
Reads 0
Downloads 0
ACS Style

Andrzej Robert Majka. Take-off aided by magnetic levitation technology. Aircraft Engineering and Aerospace Technology 2013, 85, 435 -442.

AMA Style

Andrzej Robert Majka. Take-off aided by magnetic levitation technology. Aircraft Engineering and Aerospace Technology. 2013; 85 (6):435-442.

Chicago/Turabian Style

Andrzej Robert Majka. 2013. "Take-off aided by magnetic levitation technology." Aircraft Engineering and Aerospace Technology 85, no. 6: 435-442.

Journal article
Published: 01 March 2013 in Solid State Phenomena
Reads 0
Downloads 0

Designing and building of the unmanned aircraft, especially light and ultra light vehicles, is mainly performed using the experience gained when constructing the flying models. There have not been uniform principles of building and exploiting of the mini and micro UAV (Unmanned Aerial Vehicle) in the form of regulations similar to those for manned airplanes. The unmanned vehicles of these classes in terms of their abilities and attractive price are more frequently exploited using the same air area as manned airplanes performing missions over the inhabited areas. An urgent necessity arises to work out the norms of flight suitability of the mini and micro unmanned aerial vehicles. The work contains the analysis of suitability of the current aviation regulations to determine the requirements for the mini unmanned vehicles. The work concentrates on the phenomenon of determining the symmetrical loads from the maneuvers and the turbulence atmosphere. The result of this analysis is the Limit Maneuver Envelope, Limit Gust Envelope and Limit Combined Envelope for mini UAV. The analyzed flight states allowed selecting the so called design cases which can become a basis for determining the norms of loading of mini unmanned aerial vehicles which can constitute the beginning of the regulations for building of the unmanned aerial vehicles of this class.

ACS Style

Andrzej Majka. Flight Loads of Mini UAV. Solid State Phenomena 2013, 198, 194 -199.

AMA Style

Andrzej Majka. Flight Loads of Mini UAV. Solid State Phenomena. 2013; 198 ():194-199.

Chicago/Turabian Style

Andrzej Majka. 2013. "Flight Loads of Mini UAV." Solid State Phenomena 198, no. : 194-199.

Journal article
Published: 01 March 2013 in Solid State Phenomena
Reads 0
Downloads 0

In the conditions of the growing intensity of the UAV usage one of the most important problems is the improvement of their technical and performance effectiveness. It can be achieved applying the advanced methods of optimal designing. Apart from constructing an appropriate calculation model of the UAV, such an approach requires separating a group of decisive parameters, determining the limits and choosing the criterion of optimization. The precision and the range of use of the constructed calculation model must be adequate to a particular task allowing the optimal choice of characteristics of an aerial vehicle. Selection of the design parameters requires answering the question which technical parameters (geometrical, constructional etc.) of the UAV influence the performance characteristics of the aircraft positively. Analyzing the gradients of the performance characteristics change depending on the change in the design parameters, it is possible to determine the level of precision when determining the values and formulating the condition of finishing the optimization calculations. The aim of this work was to analyze the influence of selected design parameters on the performance characteristics of a mini UAV.

ACS Style

Andrzej Majka. The Analysis of the Influence of the Design Parameters on the Performance Characteristics of a Mini UAV. Solid State Phenomena 2013, 198, 248 -253.

AMA Style

Andrzej Majka. The Analysis of the Influence of the Design Parameters on the Performance Characteristics of a Mini UAV. Solid State Phenomena. 2013; 198 ():248-253.

Chicago/Turabian Style

Andrzej Majka. 2013. "The Analysis of the Influence of the Design Parameters on the Performance Characteristics of a Mini UAV." Solid State Phenomena 198, no. : 248-253.

Conference paper
Published: 05 January 2013 in 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Reads 0
Downloads 0
ACS Style

Andrzej Majka. The Conceptual Design Study of a Patrol and Search and Rescue Wing-In-Ground Effect Craft. 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013, 1 .

AMA Style

Andrzej Majka. The Conceptual Design Study of a Patrol and Search and Rescue Wing-In-Ground Effect Craft. 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. 2013; ():1.

Chicago/Turabian Style

Andrzej Majka. 2013. "The Conceptual Design Study of a Patrol and Search and Rescue Wing-In-Ground Effect Craft." 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition , no. : 1.

Conference paper
Published: 05 January 2013 in 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Reads 0
Downloads 0
ACS Style

Andrzej Majka. Analysis of the Required Thrust of an Aircraft Aided During Take-Off and Landing by Ground-Based System Using Magnetic Levitation Technology. 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013, 1 .

AMA Style

Andrzej Majka. Analysis of the Required Thrust of an Aircraft Aided During Take-Off and Landing by Ground-Based System Using Magnetic Levitation Technology. 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. 2013; ():1.

Chicago/Turabian Style

Andrzej Majka. 2013. "Analysis of the Required Thrust of an Aircraft Aided During Take-Off and Landing by Ground-Based System Using Magnetic Levitation Technology." 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition , no. : 1.

Journal article
Published: 01 January 2013 in Journal of KONES. Powertrain and Transport
Reads 0
Downloads 0
ACS Style

Andrzej Majka. THE MULTI-OBJECTIVE OPTIMIZATION OF THE AIR TRANSPORTATION FLEET STRUCTURE. Journal of KONES. Powertrain and Transport 2013, 20, 261 -269.

AMA Style

Andrzej Majka. THE MULTI-OBJECTIVE OPTIMIZATION OF THE AIR TRANSPORTATION FLEET STRUCTURE. Journal of KONES. Powertrain and Transport. 2013; 20 (4):261-269.

Chicago/Turabian Style

Andrzej Majka. 2013. "THE MULTI-OBJECTIVE OPTIMIZATION OF THE AIR TRANSPORTATION FLEET STRUCTURE." Journal of KONES. Powertrain and Transport 20, no. 4: 261-269.

Journal article
Published: 01 January 2012 in Journal of KONES. Powertrain and Transport
Reads 0
Downloads 0
ACS Style

Andrzej Majka. THE PROBLEM OF CHOICE OF LIGHT PASSENGER SEAPLANE USED FOR SHORT-HAUL FLIGHTS. Journal of KONES. Powertrain and Transport 2012, 19, 419 -428.

AMA Style

Andrzej Majka. THE PROBLEM OF CHOICE OF LIGHT PASSENGER SEAPLANE USED FOR SHORT-HAUL FLIGHTS. Journal of KONES. Powertrain and Transport. 2012; 19 (4):419-428.

Chicago/Turabian Style

Andrzej Majka. 2012. "THE PROBLEM OF CHOICE OF LIGHT PASSENGER SEAPLANE USED FOR SHORT-HAUL FLIGHTS." Journal of KONES. Powertrain and Transport 19, no. 4: 419-428.

Journal article
Published: 01 January 2012 in Journal of KONES. Powertrain and Transport
Reads 0
Downloads 0
ACS Style

Andrzej Majka. EVALUATION OF THE REQUIRED GROUND POWER OF A GROUND-BASED SYSTEM FOR SUPPORT OF THE AIRCRAFT SAFE TAKE-OFF AND LANDING. Journal of KONES. Powertrain and Transport 2012, 19, 411 -418.

AMA Style

Andrzej Majka. EVALUATION OF THE REQUIRED GROUND POWER OF A GROUND-BASED SYSTEM FOR SUPPORT OF THE AIRCRAFT SAFE TAKE-OFF AND LANDING. Journal of KONES. Powertrain and Transport. 2012; 19 (4):411-418.

Chicago/Turabian Style

Andrzej Majka. 2012. "EVALUATION OF THE REQUIRED GROUND POWER OF A GROUND-BASED SYSTEM FOR SUPPORT OF THE AIRCRAFT SAFE TAKE-OFF AND LANDING." Journal of KONES. Powertrain and Transport 19, no. 4: 411-418.