A gearbox simulator is developed as platform for testing and demonstrating purposes. For that, a rig composed by a mechanical system and electronic equipment for controlling two servomotors is used. The objective of this equipment is to simulate the forces that the gearbox would transmit to the gear lever when the gear change operation is being carried-out. To reach this goal, a program is developed in LabVIEW to command the servomotors, emulating the forces by controlling the output torque and transmitting them to the gear stick as it would be in a real gearbox, taking into account real force-angle curves. Also, a graphical user interface is developed in order to monitor the simulator performance ad ease the way the data is chosen and introduced into the software.As seen in the experiment results, the graphs present similarities in shape and magnitude, which is important in regards of feeling; a better performance could be reach suppressing some system constraints.

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The objective of this thesis is the development of a software application facilitating a quick and extensive mission analysis including all subsystems of the satellite. Furthermore mission analysis for the Sonate mission is done, utilizing the developed program. Usually mission analysis is done by applying separately different tools which are specific for each subsystem. The drawback of this method is that the system is not analyzed as a whole; rather all subsystems are investigated separately from each other. In case one or more system parameters should change, the effect of this variation onto other parts of the system will not directly be accessible and visible. A simulation tool considering all these subsystems overcomes this weaknesses and helps to develop a balanced system. Different system configurations and operation scenarios can be evaluated quickly and compared to each other in order to find an optimal solution. The simulation system developed during this thesis exhibits a client-server structure, where the subsystems are separated modules acting as clients. The program has a highly modular structure which renders it possible to have an arbitrary extension in the future. Aside from the server, connecting all modules, the following modules were implemented: orbital dynamics module containing orbit propagation and attitude determination power subsystem consisting of the subparts power production, power consumption and power storage archiving module saving all results generated for further evaluation simulation clock providing the simulation time configuration module with a GUI to facilitate the configuration of all simulation parameters simple thermal module providing temperatures for the satellite panels Mission analysis was done for the Sonate satellite utilizing the developed program in order to find a configuration for the solar panels of the satellite such that all the subsystems of the satellite can be supplied with sufficient power during the mission.

Training simulators are used in a variety of industries that require the skill of handling complex or sophisticated technologies and having knowledge of advanced controls. Training simulators have a long history; a number of studies have already been done to make the training simulators more flexible. Jet engine testing operators have to follow a proper methodology to carry out the procedures of safe engine testing. While performing the tests, the operators have to deal with various emergency conditions and should have proper information on how to deal with those situations. This thesis presents the design and development of a training simulator for aviation engine testing operators. Engine simulation software, GasTurb, is used to develop the jet engine model files and to get the output variables from the simulator. These model files are made accessible in Simulink (MATLAB) with the help of second order S-function. The S-function accesses the Dynamic Link Library (DLL) of GasTurb, to read the model files and to provide real time output on the basis of inputs from external hardware. The user interface to display these output values is developed in Unity game engine. Five different emergency scenarios have been designed and evaluated using the developed simulator. Related variables for these emergency scenarios are plotted to compare the reaction of the operators. The feedback is also taken from the operators regarding the effectiveness of training simulator. The result shows that training simulator would promote and develop their understanding of process. It would help to enhance the ability of operator to identify parameters causing the emergency scenarios and enable them to overcome such situations. / October 2016

The project was commissioned by Tobias Hedin, who is a lecturer at the Kalmar Maritime Academy. The mission was to install a physical compressor facility that would replace an existing graphic simulator. The goal of the assembly was also, to the extent where it was possible, to emulate the compressor plants onboard ships. With the help of literary studies, but also through own experience, the necessary data were developed around compressors and facilities on board. The final choice of compressor was also done with regard to the budget, noise and capacity. Apart from the compressors, the budget also included the purchase of some peripherals that were necessary to adapt the compressor to the task. The Maritime Academy provided drawing program for schedules, and also electrical supplies. The work resulted in a fully functional compressor system with a control cabinet and control system. The client also received documentation of the facility. / Projektet utfördes på uppdrag av Tobias Hedin som är universitetsadjunkt vid Sjöfartshögskolan i Kalmar. Utbildningen, för Sjöingenjörerna vid Sjöfartshögskolan, innehåller en praktisk kurs kallad Tillämpad Elteknik. Ett av delmomenten i kursen är en programmeringsuppgift, vilken bestod av att med hjälp av en grafisk simulator programmera två kompressorer att gå enligt vissa villkor. Uppdraget var att installera en fysisk kompressoranläggning som skulle ersätta den befintliga grafiska simulatorn. Målet med anordningen var även att i den mån det var möjligt efterlikna de kompressoranläggningar som finns ombord på fartyg, då kursen Tillämpad Elteknik riktar sig till sjöingenjörsstudenter. Med hjälp av litteraturstudier, men också genom egen erfarenhet, togs fakta fram kring kompressorer och anläggningar ombord. Genom fakta från litteraturstudierna gjordes först val av kompressor. Detta gjordes med hänsyn till budget, bullernivå och kapacitet. I budgeten ingick även inköp av en del kringutrustning som var nödvändig för att anpassa kompressorerna till uppgiften. Sjöfartshögskolan tillhandahöll ritprogram för scheman, och även materiel som redan fanns tillgängligt i Trångsundet. Arbetet resulterade i en fullt fungerande kompressoranläggning med manöverskåp och styrsystem. Beställaren fick också dokumentation över anläggningen.

The purpose of this study was to evaluate the suitability of using an existing 25-ft radius centrifuge as a dynamic flight simulator for “full mission” F/A-18 strike fighter mission training with respect to the representativeness of pilot-perceived motion and acceleration cues. The methodology employed in this study consisted of analyzing F/A-18 mission tasks, collecting pilot opinion surveys of important sensory cues needed in simulator training, and conducting an analysis of human pilot perceptual problems caused by centrifuge motion constraints. This study identified a number of issues indicating that a centrifuge-based flight simulator shows limited potential for use in “full mission” F/A-18 training scenarios. Specifically, there is a fundamental mismatch between the 6 degree-of-freedom mission-representative acceleration environment experienced in the aircraft and the 3 degree-of-freedom acceleration environment the centrifuge is able to provide. The centrifuge is not optimized for the typical acceleration environment experienced during F/A-18 missions and has significant limitations in “near one g” and “near zero g” flight conditions. Additionally, the centrifuge causes a variety of undesired, unrealistic, and debilitating vestibular artifacts that are not consistent with what a pilot experiences in the aircraft when performing the same mission task, degrading the effectiveness of training. Despite its limited suitability as a “full mission” F/A-18 simulator, the centrifuge is an essential physiological training device, shows good potential as a part-task trainer for departure/spin training, and should continue to play a role in the F/A-18 training continuum.

Drilling operations management will face hurdles to reduce costs and increase performance, and to do this with less experience and organizational drilling capacity. A technology called Drilling Simulators Software has shown an extraordinary potential to improve the drilling performance and reduce risk and cost. Different approaches have been made to develop drilling-simulator software. The Virtual Experience Simulator, geological drilling logs, and reconstructed lithology are some of the most successful. The drilling simulations can run multiple scenarios quickly and then update plans with new data to improve the results. Its storage capacity for retaining field drilling experience and knowledge add value to the program. This research shows the results of using drilling simulator software called Drilling Optimization Simulator (DROPS®) in the evaluation of the Aloctono block, in the Pirital field, eastern Venezuela. This formation is characterized by very complex geology, containing faulted restructures, large dips, and hard and abrasive rocks. The drilling performance in this section has a strong impact in the profitability of the field. A number of simulations using geological drilling logs and the concept of the learning curve defined the optimum drilling parameters for the block. The result shows that DROPS® has the capability to simulate the drilling performance of the area with reasonable accuracy. Thus, it is possible to predict the drilling performance using different bits and the learning-curve concept to obtain optimum drilling parameters. All of these allow a comprehensive and effective cost and drilling optimization.

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