Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-04-13T12:14:28Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Henrique Azevedo - Tese de Mestrado - Finalizada_Rev13_Hen_Alex_Nad_Rob_ABNT_Gus_Bib-1.pdf: 2536238 bytes, checksum: 092410d49ebfec82ff6f89b7a23f93e3 (MD5) / Made available in DSpace on 2016-04-13T12:14:28Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Henrique Azevedo - Tese de Mestrado - Finalizada_Rev13_Hen_Alex_Nad_Rob_ABNT_Gus_Bib-1.pdf: 2536238 bytes, checksum: 092410d49ebfec82ff6f89b7a23f93e3 (MD5) Previous issue date: 2015-08-28 / Desde a década de 1980, a tecnologia de energia eólica sofreu um imenso crescimento em relação tanto ao tamanho da turbina quanto à capacidade instalada a nível mundial. Como a demanda por turbinas eólicas de grande escala e de custo mais baixos de operação e manutenção continua a crescer, o interesse nos sistemas de monitoramento de condição (CMS, do inglês Condition Monitoring System) tem aumentado rapidamente. Os principais componentes (MC, do inglês Main Components) das turbinas eólicas são o foco de praticamente todos CMS já que eles provocam um elevado custo de reparo e tempo de parada. Entretanto, uma grande parte das falhas em MC é causada por danos secundários devido a uma falha de um subcomponente. O objetivo deste trabalho é apresentar e propor um método de análise para identificar defeitos em componentes principais ou subcomponentes de uma turbina eólica. O método de análise proposto se baseia em técnicas de sinais temporais de vibração, nas transformadas rápidas de Fourier e análises envelope obtidas através da transformada de Hilbert. A aplicação do método, em uma turbina eólica instalada em um parque eólico real, permitiu a identificação, com sucesso, de um defeito no rolamento, o qual foi substituído confirmando a falha. / Since the decade of 1980s, wind energy technology has undergone tremendous growth over both turbine size and worldwide installed capacity. As the demand for wind turbines of large-scale and lower cost of operation and maintenance continues to grow, interest in condition monitoring system (CMS) has increased rapidly. The main components (MC) of the wind turbines are the focus of almost all CMS since they cause a high repair cost and downtime. However, a large portion of the MC faults are caused by secondary damages due to a subcomponent failure. The objective of this work is to present and propose a method of analysis to identify defects in major components or subcomponents of a wind turbine. The proposed analysis method is based on time wave analysis, fast Fourier transforms analysis and envelope analysis through Hilbert transforms. The application of the method in a wind turbine installed in a real wind farm, identified a bearing defect successfully, which was replaced confirming the failure.

The doctoral thesis focuses on a Vold-Kalman filter (VKF). Theoretical part describes properties of VKF and other order tracking methods, namely computed order tracking (COT) and Gabor order tracking (GOT). It also characterizes requirements for rotational speed measurements as one of the key elements for correct functionality of VKF. Practical part depicts own filter implementation and its properties. Main stress is put on computational efficiency, that is in result better than in available codes. Thesis also points out possible issues with numerical instabilities within calculation caused by limited dynamic range of double data type. This is solved by restricting the inputs to prevent the instabilities. Restriction is applied also to cases where the result is numerically correct but unusable. Following part extends the comparison with methods STFT, COT and GOT, where benefits of VKF for nonstationary conditions are shown. The last section shows given information used on simulated signals. This is then applied to show mentioned techniques on experimental data, for instance from turbo engine or electric motor, where the ability of VKF in checking the accordance between speed profile and vibration data is illustrated.

This diploma thesis contains a summary of the general information about the torsion vibration of the crankshaft. The main task is to prepare a flexible model of the crankshaft in the FEM program ANSYS and the subsequent export into the MBS ADAMS / Engine. According to parameters the model of four-cylinder line tractor engine with flexible crankshaft is built. Crank mechanism is analyzed to determine the natural frequencies and natural modes. Finally the results are evaluated and compared with analytical calculations.

The choice of the topic addressed in this thesis aims to improve the service and maintenance on ceramic ball bearings in a specific test dynamometer and through an engineering approach develop tools for condition monitoring. The company connected to this thesis, AVL, is the world's largest privately owned company for development, simulation and testing technology of powertrains for passenger cars, trucks and large engines. Engine testing is a critical part of the business at AVL Sweden and unexpected bearing failure can result in long repair times and great economic losses due to loss of the testing time. In short terms, the methodological approach followed the following steps; first a thorough information retrieval regarding bearings and analysis was conducted. The search was deepened around areas such as hybrid ball bearings, bearing failure mechanisms, bearing defect frequencies, signal analysis and condition monitoring. After this a table for bearing damage detection was developed and a “step by step” guidance for condition monitoring. The tools where afterwards verified by simple testing to detect complications within the chosen system. The existing condition monitoring system that is used today revealed weaknesses as it lacked the feature of taking preventive measures. The system that is based on temperature measurements isn’t satisfactory enough, especially when it’s missing visual clarity. Service and maintenance according to specifications from the manufacturer should be scheduled to ensure operational and guarantees. Currently mounted accelerometers on the housing of the Dynas3 engine should be connected for collecting data and the total sum of energy should be calculated for simple monitoring of historical progression. This should be done by following the guidance in order to ensure proper data acquisition. The best way to implement condition monitoring showed to be by performing multi-parameter monitoring. The design of the condition monitoring system is highly connected to what to monitor and at what stage. One main consideration to keep in mind is that it’s very rare that manufacturing defects are the reason for bearing failure. Instead it derives from improper storage, transport, handling or dimensional errors and even in some cases by improperly implemented force analysis prior to bearing selection. / Huvudämnet som behandlas i detta examensarbete syftar till att förbättra service och underhåll på keramiska kullager i en viss testdynamometer och genom ett ingenjörsmässigt tillvägagångsätt utveckla verktyg för tillståndsövervakning. Företaget som är ansluten till detta examensarbete är AVL som är världens största privatägda företag för utveckling, simulering och testteknik för drivlinor för personbilar, lastbilar och stora motorer. Motorprovning är en viktig del av verksamheten vid AVL Sverige, och ett oväntat lagerhaveri kan leda till långa reparationstider och stora ekonomiska förluster på grund av utebliven test tid. I korta termer följde den metod som använts följande steg, först genomfördes en grundlig informationssökning om lager och tillhörande analyser. Efter det fördjupades sökande kring områden som hybrida kullager, lagerskademekanismer, frekvenser kopplade till lagerskador, signalanalys och tillståndsövervakning. Efter detta framställdes en tabell för detektering av lagerskador, samt en ”steg för steg” guide för tillståndsövervakning. Verktygen för tillståndsövervakning kontrolleras efteråt, genom att enkla tester genomfördes för att upptäcka komplikationer inom det valda systemet. Det övervakningssystem som används idag avslöjade svagheter genom att sakna funktionen att vidta förebyggande åtgärder. System som är baserat på temperaturmätningar är inte tillräckligt tillfredsställande, speciellt när det saknar en visuell tydlighet. Den service och underhåll som enligt tillverkarens föreskrifter påvisas bör planeras för att säkerställa drift och garantier. Nuvarande monterade accelerometrar fästa vid motorhöljet bör anslutas för att insamla data, och den totala summan av energin bör beräknas för en enkel övervakning av det historiska utvecklingsförloppet. Detta bör göras genom att följa de riktlinjer som framställts för att säkerställa korrekt datainsamling. Det bäst passande sättet att genomföra tillståndsövervakning på i detta fall visade sig vara att utföra multiparameterövervakning. Framställningen av tillståndsövervakningssystemet är starkt förknippat med vad som skall övervakas och i vilket skede. En huvudsaklig bidragande faktor att komma ihåg är att det är mycket ovanligt att fabrikationsfel är orsaken till lagerhaveri. Istället härstammar haveriet från felaktig förvaring, transportering, hantering eller dimensioneringsfel och i vissa fall av felaktigt genomförd kraftanalys inför lagerval.

<p>U ovoj disertaciji, izvršena su teorijska i eksperimentalna istraživanja dinamičkog onašanja jezgra visokih zgrada. Model je zasnovan na Vlasovoj teoriji tankozidnih nosača, kao i na metodi prenosnih matrica. Jezgro se tretira kao tankozidni nosač otvorenog poprečnog preseka, koji je na dnu uklješten u temeljnu ploču, dok je na vrhu&nbsp; slobodan.&nbsp; Duž&nbsp; ose&nbsp; smicanja,&nbsp; jezgro&nbsp; je&nbsp; podeljeno&nbsp; na&nbsp; čvorove&nbsp; u&nbsp; nivoima spratova&nbsp; u&nbsp; kojima&nbsp; su&nbsp; redukovane&nbsp; mase.&nbsp; Poseban&nbsp; naglasak&nbsp; je&nbsp; stavljen&nbsp; na&nbsp; analizu uticaja poprečnih greda, međuspratnih ploča, kao i načinu oslanjanja međuspratnih ploča po spoljašnjoj konturi na dinamičke karakteristike jezgra. Razvijeni&nbsp; numerički&nbsp; postupak&nbsp; je&nbsp; primenjen&nbsp; na&nbsp; armiranobetonskom&nbsp; jezgru petnaestospratne zgrade, koja je analizirana ranijeu radovima mnogih autora. U tu svrhu korišćen je računarski program TWBEIG, napisan primenom Visual Fortran programskog jezika. Analize su urađene i MKE, a dobijeni rezultati su upoređeni. Vrednosti sopstvenih frekvencija pokazuju dobro slaganje.<br />Ovaj rad daje detalje i o eksperimentalnoj studiji&nbsp; u kojoj se primenjuje pleksiglas model u cilju pružanja eksperimentalnih podataka zaproveru tačnosti i pouzdanosti numeričkih&nbsp; rezultata.&nbsp; Dobijeni&nbsp; rezultati&nbsp; su&nbsp; takođe&nbsp; upoređeni&nbsp; sa&nbsp; rezultatima dobijenim TWBEIG računarskim programom, kao i MKE.<br />Predstavljeni&nbsp; numerički&nbsp; metod&nbsp; nudi&nbsp; solidnu&nbsp; osnovu&nbsp; za&nbsp; formiranje&nbsp; jednostavnog modela&nbsp; proračuna,&nbsp; a&nbsp; ipak&nbsp; obezbeđuje&nbsp; odgovarajući&nbsp; nivo&nbsp; preciznosti.&nbsp; Predloženi postupak&nbsp; može&nbsp; biti&nbsp; korišćen&nbsp; i&nbsp; u&nbsp; fazi&nbsp; prethodne&nbsp; analize&nbsp; zgrade,&nbsp; kao&nbsp; i&nbsp; u&nbsp; fazi konačnog projektovanja.</p> / <p>In this dissertation, a theoretical and experimental study of the dynamic behaviour<br />of&nbsp; the&nbsp; tall&nbsp; buildings&nbsp; core&nbsp; was&nbsp; carried&nbsp; out.&nbsp; The&nbsp; model&nbsp; is&nbsp; based&nbsp; on&nbsp; the&nbsp; Vlasov&#39;s<br />theory of thin-walled beams and the transfer matrixmethod. The core is treated as<br />a thin&nbsp; wall-walled, open cross section cantilever beam. Along the shear axis the<br />core&nbsp; is&nbsp; divided&nbsp; into&nbsp; nodes,&nbsp; in&nbsp; the&nbsp; level&nbsp; of&nbsp; the&nbsp; floors,&nbsp; in&nbsp; which&nbsp; the&nbsp; masses&nbsp; are<br />reduced.&nbsp; Special&nbsp; emphasis&nbsp; was&nbsp; given&nbsp; to&nbsp; the&nbsp; analysis of&nbsp; the&nbsp; influence,&nbsp; of&nbsp; lintel<br />beams,&nbsp; floor&nbsp; slabs,&nbsp; as&nbsp; well&nbsp; as&nbsp; the&nbsp; type&nbsp; of&nbsp; restraints&nbsp; along&nbsp; the&nbsp; outer&nbsp; edge&nbsp; of&nbsp; the<br />floor slabs, on the dynamic characteristics of the core.<br />The&nbsp; developed&nbsp; numerical&nbsp; procedure&nbsp; was&nbsp; applied&nbsp; to&nbsp; the&nbsp; fifteen-storey&nbsp; reinforced<br />concrete core tall building, analyzed previously inthe papers of many authors. For<br />this&nbsp; purpose,&nbsp; the&nbsp; computer&nbsp; program&nbsp; TWBEIG&nbsp; was&nbsp; used, written&nbsp; using&nbsp; Visual<br />Fortran programming language. The analyses were also performed with FEM and<br />subsequently the results were compared. The values&nbsp; of natural frequencies show<br />significant agreement. This&nbsp; paper&nbsp; presents&nbsp; details&nbsp; about&nbsp; the&nbsp; experimental&nbsp; study&nbsp; which&nbsp; applies&nbsp; the plexiglas model in order to provide experimental data to verify the accuracy and reliability of the numerical results. The results are also compared with the results obtained with the TWBEIG computer program, as well&nbsp; as with FEM. The values of frequencies show reasonable agreement.<br />The proposed numerical&nbsp; method offers a solid base&nbsp; for the creation of a&nbsp; simple<br />calculation model, yet provides the appropriate level of precision. It can be either<br />used for preliminary analysis or for the final design.</p>

The functioning of maxillofacial complex as a one unit is an important condition of fulfilling several functions connected with this area of human body. A maxillofacial region and other parts of the body are connected through occlusion, one of the basic characteristics of which is occlusal plane. According to the number of researchers, 3D orientation of occlusal plane, its shape and possible deformation can have an influence on other anatomic structures via a system of a complex neuromuscular reactions. This theory assumes that the adjustment of occlusal plane inclination causes redistribution and redirection of the chewing forces in the adjacent structures which will subsequently manifest itself in the adjustment of the tension of different muscles. Aim The aim of an experimental part of the research was to define the influence of occlusal plane inclination on the function of maxillofacial region with the focus of jaw joints and chewing muscles. The next goal was to determine the figures of sagittal and frontal inclination of occlusal plane which can be considered as physiological. Patients and Methods The research was based on the examination of 87 people of both genders, different age groups with a complete set of teeth and without chronic diseases. The participants were divided in two groups...

Overhead cranes and rail mountings in the wall are subjected to vibrations whenlifting equipment. The purpose of this thesis is to review if the minimum frequencyvalue for cranes, according to the ISO 22986:2007 standard is conservative whendesigning overhead traveling cranes. To succeed with the purpose of this thesis,the objective is to compare measured to simulated vibration data on an overheadtraveling cranes. MSC Nastran and MATLAB were used to compare the measureddata to the simulated model. Experimental vibration data on a crane at Volvo CEwas obtained by using the program Siemens Test Lab. The experimental vibrationdata were correlated to the finite element model, by using the modal assurance criteriabetween the mode shapes of the experimental and finite element models. Thefinite element model was used to conduct a study which resembles the operationmovements of the crane. The result of the load investigation where a trolley movesalong the girder on the overhead crane, showed that the ISO 22986:2007 standard isnot conservative in regards to the displacement due to movements during operationof the crane, since the standard does not consider 13% of the displacement whichis due to the torsional modes. When considering an extreme case where the entireload of the trolley was placed on one side of the girder 51% of the displacement wasin response to the torsional modes in this study. Thereby, the minimum frequencyallowed on the overhead cranes does not consider the torsional vibration’s contributionwhich have a significant impact on the displacement when the trolley movesover the girder. / Traverser och traversrälar som är monterade i väggen, utsätts för vibrationer när delyfter utrustning. Syftet med detta examensarbete är att granska om lägsta frekvensenför traverser, enligt ISO 22986:2007 standarden är konservativ när den användssom underlag för att designa traverskranar. För att kunna undersöka detta behöveruppmätta vibrationer från en fysisk travers jämföras med vibrationsdata från enFinita-elementmodell av en travers för att validera modellen. MSC Nastran ochMATLAB användes för att jämföra uppmätta data med den simulerade modellen.Vibrationsdata uppmättes på en travers på Volvo CE Braås. För denna mätninganvändes programvaran Siemens Test Lab. Den experimentella vibrationsdatanvaliderades emot finita-elementmodellen genom att jämföra "modal assurance criterion"för den experimentellamodellen och finita-elementmodellen. Den valideradefinita-elementmodellen användes för att utföra en studie av traverskranen där driftsrörelserav kranen simuleras. Resultatet av lastutredningen där en tralla rör siglängs balken på traversen, visade att ISO 22986:2007 standarden inte är konservativmed avseende på förskjutningen på grund av rörelser. I de studerade fallen tarstandarden inte hänsyn till 13% av förskjutningen som beror på vridsvängningarna.När extremfallet analyseras där hela lasten av trallan placerades på ena sidan avtraversbalken var 51% av förskjutningen på grund av vridningssvängningarna. Denlägsta tillåtna frekvensen på traverskranarna tar därmed inte hänsyn till torsionsvibrationernasbidrag som har en betydande inverkan på förskjutningen när vagnenrör sig över balken.

[pt] Neste trabalho a Análise de Vibrações é tratada no contexto da formulação fraca. Um sistema contínuo é formulado abstratamente em um espaço de Hilbert e uma base de projeção é escolhida para a dinâmica. Um esquema de convergência para a aproximação é garantido à medida em que se aumenta o número de funções da base usada para representar a resposta do problema. Esta é a idéia por traz de métodos como o Método dos Elementos Finitos e o Método dos Modos Supostos, que derivam do Método de Galerkin. Esta estratégia é diferente do que comumente é ensinado nos cursos de vibrações, onde um sistema massa-mola é analisado, e sistemas discretos formados por massas, molas e amortecedores são discutidos. Nestes casos não se sabe qual é o erro cometido na análise numérica. A Análise de Vibrações é muito usada na manutenção preditiva de máquinas rotativas. Alguns fenômenos observados nesses equipamentos motivaram o desenvolvimento de um modelo numérico que pudesse reproduzir tais fenômenos para melhor entendê-los. Um sistema rotor-mancal é modelado e sua resposta dinâmica comparada qualitativamente com a resposta dinâmica captada através de acelerômetros fixados nos mancais de um exaustor da Companhia Siderúrgica de Tubarão (CST). Durante o trabalho diversos programas foram desenvolvidos através da plataforma MATLAB. / [en] Vibration Analysis is treated in the context of weak formulation. A continuous system is formulated in the Hilbert space and one base is selected to project the dynamics. An approximation scheme is guaranteed by increasing the number of functions in the base used to represent the response. This is the idea behind methods like the Finite Element Method and Assumed Modes Method, which derive from Galerkin Method. This strategy is different from what is commonly taught in vibration courses, where a mass-spring system is analyzed and discrete systems composed by masses, springs and dashpots are discussed. In those cases the error of the numerical analysis is not known. Vibration Analysis is very used in predictive maintenance of rotating machines. Some phenomenons observed in those machines motivated the development of a numerical model that could reproduce such phenomenons to better understand them. A rotor-bearing system is modelled and its dynamic response is qualitative compared to the dynamic response captured by accelerometers fixed on the bearings of a blower of the steel company Companhia Siderúrgica de Tubarão (CST). During this work several programs were developed using MATLAB software.

Vibrations in staircases have during the last decades become an important issue in design. The main reasons are current architectural trends aiming for innovative, slender and high staircases, together with developments in material properties and building technique, making these aims possible. The improved material properties and slender design of the staircase makes the structure lightweight and have great impact on the flexibility and dynamic performance of the staircase. This have resulted in that vibration serviceability criteria increasingly often are becoming governing in design. The performance of staircases in serviceability under dynamic loads is however very hard to predict. In many cases hand calculations will not be sufficient, and a computerized model, e.g. a finite element model, need to be created. Creating a finite element model that performs well when subjected to dynamic loads is however not simple. Especially boundary conditions, connections and the effect of non-structural elements are hard to adequately represent. The formulation of the load is also a complex question. The main dynamic load that staircases are subjected to, that causes uncomfort for the user, is the load that the user themselves apply on the structure, when ascending or descending.  The main part of this master thesis project is a case study of two lightweight, steel staircases. To form a basis for the case study, current research have been summarized in a literature survey. An introduction of elementary dynamics is also made for less conversant reader. The literature survey reviews previous research about loads introduced by humans and how these can be formulated, both for single human excitation and group loading. How vibrations arise and how humans percept vibrations is also reviewed. The view and recommendations of standards and regulations about load formulation and vibration acceleration limits is presented. Recommendations in research for finite element modeling of staircases and dynamic loads is also reviewed. The case study consists of measurements and analyzing of finite element models of the staircases. Measurements of vibrations and the dynamic response of the staircases under human introduced loads have been conducted. The human introduced loads included are an impulse load created by a jump, ascent at a moderate pace of a single subject and descent at a moderate pace by a single subject. The measurements have been recreated in finite element models. Different modeling choices and formulations for ascending, descending, and impulse loads are studied.  The aim is to investigate how different modeling choices in connections, boundary conditions and adjacent structure, affects the natural frequencies and mode shapes of the staircase. Different load formulations for the loads are analyzed, both for the impulse load and for the loads created by a subject ascending and descending. With these results as a basis, some general recommendations about construction a finite element mode of a staircase and achieving appropriate load formulation for dynamic loads are made. / Vibrationer i trappor har under de senaste årtiondena blivit en viktig fråga vid projekteringen av trappor. De främsta anledningar är dagens arkitektoniska trender som eftersträvar innovativa, slanka och långa trappor, tillsammans med utveckling i material egenskaper och förbättrade byggmetoder som möjliggör dessa trender. De förbättrade materialegenskaperna samt den slanka designen av trappan gör konstruktionen lätt och har stor påverkan på styvheten samt det dynamiska gensvaret hos trappan. Detta har resulterat i att vibrationer i bruksgränstillståndet allt oftare är dimensionerande i designen av trappan.    Responsen under dynamiska laster i bruksgränstillståndet hos trappan är dock väldigt svårt att förutbestämma. I de flest fall är handberäkningar inte tillräckliga för att förutsäga detta beteende och en dator modell, t.ex. en finita element modell, behöver utvecklas. Att utveckla en finita element modell som genererar tillförlitliga respons är dock inte enkelt. Speciellt randvillkoren, kopplingar och effekten av icke bärande element är svårt att modellera tillförlitligt. Hur man formulerar lasten kan också vara en svår fråga. Den främst dynamiska lasten som trappor utsätts för som skapar obekväma vibrationer för användaren, är också skapade av användaren själv eller andra användare som går upp eller ner i trappan.  Huvuddelen av detta arbete består av en fallstudie av två lätta ståltrappor. För att få en bas för fallstudien har rådande forskning gåtts igenom och summerats i en litteraturstudie. En introduktion av grundläggande dynamik har även gjorts för den mindre insatta läsaren.  Litteraturstudien har gått igenom forsning om dynamiska laster orsakade av människor och hur dessa kan beskrivas, både för laster orsakade av en människa, samt även för en grupp av människor. Hur vibrationer uppkommer och hur människor uppfattar vibrationer har också undersökts. Standarders uppfattning och rekommendationer, samt regelverk om lastformulering och gränsvärden för vibrationer presenteras. Rekommendationer från forskning av finita element modeller av trappor och dynamiska laster i dessa gås också igenom. Fallstudien består av mätningar i de verkliga trapporna, och av uppbyggnad och analysering av finita element modeller av trapporna. Mätningar av vibrationer och den dynamiska responsen hos trapporna när de utsätts för dynamiska laster orsakade av människor har utförts. De studerade lasterna inkluderar en impulslast skapad av ett hopp, last från en människa som går upp i trappan och last från en människa som går ner i trappan. Mätningarna har sedan försökts återskapas i finita element modellerna. Olika modellerings val och formuleringar för gång och impuls lasterna har studerats. Syftet är att undersöka hur olika modelleringsval hos kopplingar, randvillkor samt närliggande struktur påverkar egenfrekvenserna och modeformen hos trapporna. Olika beskrivningar på lasterna analyseras, både för impuls lasten, samt lasten från en människa som gå upp eller ner i trappan. Med hjälp av dessa resultat kommer några generella rekommendationer om hur finita element modeller av trappor kan konstrueras och hur en tillbörlig lastformulering för dynamiska laster uppnås.

A number of non-invasive fault detection and diagnosis (FDD) techniques have been researched and have proven to have worked well in classifying faults in internal combustion engines (ICE) and other mechanical and electrical systems. These techniques are an integral step to creating more robust and accurate methods of determining where or how a fault has or will occur in such systems. These FDD techniques have the potential to not only save time avoiding a tear-down of a costly machine, but could potentially add another layer of safety in detecting and diagnosing a fault much earlier than was possible before. Looking at the previous research methods and the systems they used to acquire this data, it is a natural progression to try and make a system which is able to encapsulate all of these ideologies into one inexpensive module capable of integrating itself into the advanced set of FDD. This thesis follows along with the development of a new wireless sensor that is developed specifically for the use in FDD for ICE and other mechanical systems. A new set of software and firmware is created for the system to be able to be incorporated into previously designed algorithms. After creating and manufacturing the sensor it is put to the test by incorporating it into several Artificial Neural Networks (ANN) and comparing the results to previous experiments done with previous research equipment. Using vibration data acquired from a running engine to train a neural network, the wireless sensor was able to perform equally as well as its expensive counter parts. It proved to have the ability to achieve 100% accuracy in classifying specific engine faults. The performance of three ANN training algorithms, Levenberg-Marquardt (LM), extended Kalman Filter (EKF), and Smooth Variable Structure filter (SVSF), were tested and compared. Adding to the feasibility of a standalone system the wireless sensor was tested in a live environment as a method of instant ICE fault detection. / Thesis / Master of Applied Science (MASc)