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Dissertations / Theses on the topic 'Independent suspension'
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1
Klomp, Matthijs, and Anders Nygren. "Concept development of a single wishbone independent rear suspension." Thesis, University West, Department of Technology, Mathematics and Computer Science, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-808.
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Lopušek, Dávid. "Sportovní vozidlo pro handicapované osoby." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231446.
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The master thesis deals with the engineering design and realization of a sports electric vehicle for disabled people. The first part of thesis summarize competitive vehicles on market and also the necessary theoretical knowledge for the design phase. After analyzing the research and determine the resulting vehicle concept follows the draft design. In this section based on calculations was chosen the solutions and necessary components for a vehicle. The following section describes the structure of the vehicle in implementing selected components. In conclusion, the evaluation of the proposed solution.
3
Moravec, Jan. "Přední nezávislá náprava pro autobus." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-227878.
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In those diploma work was solved problems of independent trapezoidal axletree for low-floor bus - NB12 CITY firm SOR Libchavy s.r.o . Work was divided into two main features: solving wheel-suspension kinematics and strenght calculation sorted parts of wheel suspension by the help of finite element method. There was effected fatigue calculation sorted parts of wheel suspension according to „Resetova metoda“ of predicting fatigue damage flowing from so – called cutaway methodics of fatigue tests at the close of this work.
4
Allafi, Mousa. "La cour pénale internationale et le conseil de sécurité : justice versus maintien de l'ordre." Thesis, Tours, 2013. http://www.theses.fr/2013TOUR1002/document.
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Le système de la Cour pénale internationale (CPI), dont la mission est d’assurer la justice internationale, repose sur un lien étroit avec le Conseil de sécurité. Il convient donc de s’interroger sur le rôle du Conseil dans le fonctionnement de la justice pénale internationale. Cette question est fondamentale, car l'intervention d'un organe politique dans l’activité d’un organe judiciaire remet en cause les missions de chacune de ces institutions. L’intrusion du Conseil dans l’activité de la CPI, basée sur sa mission de maintien de la paix, est en fait établie au nom d’un ordre international voulu par le Conseil lui-même. Ce rôle affecte le fonctionnement, l’indépendance et même l’impartialité de la Cour. Les pouvoirs que le Statut de Rome confère au Conseil, lui permettent en effet de saisir la CPI, d’imposer aux Etats de coopérer avec la Cour, de suspendre son activité ou encore de qualifier un acte, de crime d’agression. Cependant, les rapports entre le Conseil et la CPI ne devraient pas être subordonnés, mais entretenus dans le respect mutuel, ainsi une véritable crainte existe concernant le respect du Conseil envers le Statut de Rome. L’étude met en évidence le conflit entre justice et politique et révèle les enjeux actuels en termes de justice pénale internationaleThe international criminal Court system (ICC) whose mission is to ensure international justice, is based on a close relationship with the security Council. So it is proper to wonder about the Council’s role in the functioning of international criminal justice. Such a questionning is fundamental, for the intervention of a political body into the functioning of a judicial body calls into question the missions of both institutions. The Council’s interference in the activity of the ICC, based on its mission of maintaining international peace, is actually carried out on behalf of an international order intended by the Council itself. This role affects the functioning, the independence and even the impartiality of the ICC. The powers the Rome Statute gives to the Council allow it to refer to the ICC, to impose for the States to cooperate with the Court, to suspend its activity or also to qualify an act as a crime of aggression. However the relations between the Council and the ICC should not be subordinated, but maintained in mutual respect. Thus there is a real concern regarding the observance of the Rome Statute by the Council. The study highlights the conflict between justice and politics and reveals the current issues in terms of international criminal justice
5
Alvar, Blomgren. "”By the iron hand of oppression" : The performance of the parliamentary election contest in Nottingham and Middlesex 1802-1803." Thesis, Stockholms universitet, Historiska institutionen, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-143964.
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The aim of this thesis is to investigate how politics was done at the level of the parliamentary constituencies at the time of the treaty of Amiens 1802-1803. This is achieved through two case studies of the elections in Middlesex and Nottingham, which are investigated as social practices. This thesis argues that understandings of masculinity and national identity, as well as questions about the nature of the constitution and citizen rights were central to participants in the extraparliamentary political process. Collective emotions were also highly important in the process of mobilising political support, and this thesis emphasises that participation in these elections was a collective effort; men and women from all levels of society were significant political actors. Moreover, this thesis demonstrates the importance of competences such as knowledge about the organisation of crowds and political violence in the performance of the election.
6
Lestrade, Éric. "Les principes directeurs du procès dans la jurisprudence du Conseil Constitutionnel." Thesis, Bordeaux 4, 2013. http://www.theses.fr/2013BOR40033/document.
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Malgré le peu de fondements écrits consacrés à la justice dans le texte de la Constitution du 4 octobre 1958, le Conseil constitutionnel, en réalisant un travail d’actualisation à partir de la Déclaration des droits de l’homme et du citoyen, a permis l’émergence d’un droit constitutionnel processuel, construit autour de principes directeurs. Ceux-ci peuvent être répartis dans trois catégories : deux principales, selon que l’acteur du procès prioritairement concerné soit le juge ou les parties et une troisième, complémentaire, celle des garanties procédurales, permettant de favoriser les qualités essentielles du juge et de contrôler le respect des droits des parties. Une gradation des exigences du Conseil constitutionnel est discrètement perceptible entre les deux premières catégories de principes, plus facilement identifiable entre celles-ci et la dernière famille. Cette échelle décroissante de « densité » des principes directeurs du procès témoigne d’une véritable politique jurisprudentielle en matière de droit constitutionnel processuel, qui met l’accent sur l’accès au juge, doté des qualités indispensables à l’accomplissement de sa mission juridictionnelle. Toutefois, aussi satisfaisante que soit l’action du juge constitutionnel français à l’égard du droit du procès, celle-ci nécessiterait aujourd’hui le relais du constituant, afin de moderniser le statut constitutionnel de la justiceIn spite of a relatively low number of written dispositions dedicated to justice inside of the body of the Constitution of October 1958 4th, the constitutional Council, while updating this text through the Declaration of Human Rights, contributed to the development of a procedural constitutional law, which is structured around guiding principles. Those principles can be classified within three different categories : two major categories depend on the trial actor that is primarily concerned, either the judge or the parties; a third and additional category pertaining to procedural protections, fosters the essential qualities of the judge and secure the protection of the parties’ rights. A gradation of the requirements of the constitutional Council is discreetly perceptible between the first two categories of principles, and more easily identifiable between those first two categories and the last one. This decreasing scale of “density” yoked to the trial guiding principles highlights a genuine judicial policy when it comes to procedural constitutional law, emphasizing access to the judge, whom is given essential qualities in order to achieve its judicial duty. However, the action of the French constitutional judge, as satisfactory as it is towards the rights of the trial, would easily support the intervention of the constituent power in order to update Justice’s constitutional status
7
Tsai, Po-Jen, and 蔡博任. "Kinematic Analysis of Independent Suspension systems." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/60318908792468647971.
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碩士國立臺北科技大學
車輛工程系碩士班
92
This study analyzes the motions of independent suspension systems, including Macpherson Struct type, and Double-Wishbone type, usually found in general-purpose passenger cars. The researcher first establishes the 2-D mathematical models of these two suspension systems, and calculates the camber angle and wheel center lateral displacement relative to vehicle height, wheel vertical displacement, vehicle roll, variation of linkage length and joint shift by using closure equation. Then the characteristics of different independent suspension systems are compared and the analysis results are contrasted through ADMS/CAR software. The comparisons show that there is a little difference between the results by closure equations and that by ADMS/CAR software. Therefore, before proceeding to software simulation, the researcher can analyze the motions of independent suspension systems qualitatively by using closure equations.
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Chen, Bo-Hau, and 陳柏豪. "Spatial Kinematic Analysis of Independent Suspension Mechanism." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/qktkr8.
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碩士國立臺北科技大學
車輛工程系所
100
This study analyzes the motions of independent suspension mechanism, including Double-Wishbone type and Macpherson Strut type, usually found in general-purpose passenger cars. This study builds space suspension mechanisms through kinematic analysis of vehicle suspension mechanisms including quarter-car, half-car and full-car. Kinematic analysis of suspension derivative method can be used to find the body-wheel movement relationships and the instant axis. Then the characteristics of different independent suspension systems are compared with the simulation of ADAMS/Car software. Therefore, the design parameters of vehicle suspension can be modified according to results of analysis; in addition, this study can provide a platform for vehicle dynamic analysis.
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張慶瑞. "Design of six-bar vehicle independent suspension systems." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/64777869122824397191.
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Chuang, Chu-Chou, and 莊筑州. "Design of An Independent Rear Suspension for Low-floor Bus." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/2p5tnn.
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碩士國立臺北科技大學
車輛工程系所
106
This paper processes an independent rear suspension for the front power source, front-wheel drive for low-floor buses. The suspension type is decided by using the structural synthesis base on design conditions. When the suspension type is decided, the dimension of the each kinematic link is determined by using the analytical linkage synthesis, and the mathematical model is established by the constraint equation. During the bump and rebound, the toe angle, camber angle and track is calculated by Matlab. If the goal is not fulfilled, the dimension of the kinematic links is adjusted by sensitivity analysis. After the goal is achieved, the mathematical model is compared to the virtual model by simulation software ADAMS. This paper can be applied to develop the low-floor bus for increasing the space between arches.
11
Karimi, Eskandary Peyman. "Interconnected Air Suspensions with Independent Height and Stiffness Tuning." Thesis, 2014. http://hdl.handle.net/10012/8414.
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Suspensions play a crucial role in vehicle comfort and stability. Different types of suspensions have been proposed to fulfill the essential characteristics of vehicle suspensions. A semi-active suspension with adjustable damper improves the performance of a suspension in different conditions and it is better than a passive suspension in terms of ride comfort and handling. Furthermore, it is not as expensive and complicated as an active suspension. Semi-active suspensions rely on adjustable damping coefficient. A new type of air suspension with independent ride height and stiffness tuning has been developed recently. By using two air chambers in the suspension system, ride height of vehicle and stiffness of suspension can be adjusted independently and simultaneously. The conventional air suspension systems use compressor to pump the air into a single flexible rubber airbag and by inflating the air, the chassis will be raised from the axle (ride height control). In this type of suspensions, the stiffness of spring is not under control. In the new air suspension system, by controlling the air pressure on both chambers, one can tune the suspension stiffness and the ride height of the vehicle at the same time for different driving conditions. The air suspension is also able to maintain the vehicle body at the same height and natural frequency for different load or number of passengers. This thesis discusses about the design analysis of an air suspension with ride height and stiffness tuning. The analytical formulation is developed for the optimum design of the new air suspension system.
In this thesis, the interconnection between the pressurized chambers of the new air suspension with ride height and stiffness tuning is studied to further improve the performance. Proper interconnection of air springs can help the suspension system to distribute the load between tires more evenly on rough roads or uneven surfaces. Different configurations in air spring interconnection have different impact on the handling and tire load distribution. To study the effect of air spring interconnection configurations on tires load distribution and vehicle handling, a general mathematical model is developed. This model is used to compare various configurations in detail.
Results show that interconnection could improve tire load distributions greatly. It is also shown that improving tire load distribution will deteriorate roll stiffness that in turn deteriorate vehicle handling at higher speeds. Since on rough roads, vehicle’s speed is necessarily low, interconnection will not have adverse effects on vehicle handling when activated.
12
Zhou, Zhen-Hua, and 周振華. "Analysis of Damping Parameter of Shock Absorber of Independent Automotive Suspension." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/43807456111546510243.
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碩士國立雲林科技大學
機械工程系碩士班
92
This research aims at designing the optimal damping parameter of shock absorber of the independent automotive suspension. Using the Taguchi method to simplify the analyzing process. Then, simulating the dynamic response through the CAE simulation software of ADAMS/Car. To do the optimal design under the requirements of comfort and stability when driving under different speed and condition, Using the vertical acceleration and angular acceleration of vehicle as the objective function. In addition, the driving conditions this paper considered include the convex pavement, manhole pavement, lane change and S steering. Finally, comparing the optimum parameters with the parameters of general range to see if the optimum parameters obtained from the research can reach a certain level of comfort and driving improvement.
13
Zhuang, Chuan-Sheng, and 莊傳勝. "Mechanism Dynamic Simulation and Analysis of Multi-Wheeled Independent Suspension System." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/54697919403901354982.
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碩士國立雲林科技大學
機械工程系碩士班
92
The multi-wheeled heavy transportable vehicle will make dynamic load when drives through the rugged road. However, the load might center on single or some independent suspension system and affect the driving safety. This thesis chooses double wishbone type of independent suspension, then design 4-axle heavy vehicle according to the traffic regulations. This research aims at dynamic simulation and analysis of the multi-wheeled independent suspension system. Using the CAD software Solid Edge to model a 4-axle heavy vehicle, and using the CAE simulation software ADAMS to do dynamic simulation of independent suspension system. First, getting the vertical acceleration reaction curve of vehicle, and the load curve of components of independent suspension system. Next, using the FEM software ANSYS to analyze the stress distribution on important components of independent suspension system, and improve the strength of independent suspension system finally.
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Huang, Shao-Cheng, and 黃紹誠. "Steering Simulation and Analysis of Independent Suspension System with Double-Wishbone." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/47533909967080917377.
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碩士國立雲林科技大學
機械工程系碩士班
97
According to the traffic regulation, the research designs a four-wheels vehicle by using independent suspension system with double wishbone type. The research uses CAD software ADAMS to construct the vehicle model and to do steering dynamic simulation under different speed. Roll angle, lateral acceleration, and tire normal force are the three indexes to evaluate steering operation, and observe car steering situation. In order to improve handling for drivers, the research uses the Taguchi method and designs the suspension damping and spring parameters. The purpose of the research is to reduce the roll angle to find the best suspension parameter combinations.
15
Lin, Ta-Wei, and 林達偉. "Mechanism Dynamic Simulation and Analysis of Multi-Wheeled Independent Hydropeneumatic Suspension System." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/78655963532740447097.
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碩士國立雲林科技大學
機械工程系碩士班
94
This study aims at the mechanism dynamic simulation and analysis of multi-wheeled independent hydropeneumatic suspension system, provided that the multi-wheeled vehicle drives on various regular road conditions. This research designs a four-axle heavy vehicle according to the traffic regulations, for independent suspension system, choosing double wishbone type for the two front axles and trailing arm type for the two back axles. First, the 4-axle heavy vehicle is modeled by using the CAD software Solid Edge. Next, employing the CAE simulation software ADAMS to do dynamic simulation of independent hydropeneumatic suspension system, and obtain the vertical acceleration reaction curve of vehicle and the load curve of components of independent hydropeneumatic suspension system. Finally, to analyze the stress distribution on major components of independent hydropeneumatic suspension system with the FEM software ANSYS, and improves the strength of independent hydropeneumatic suspension system.
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Chang, Chia-Chen, and 張家禎. "A Design of the Planetary Gear Mechanism for Non-Independent Suspension System." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/ef9u8j.
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碩士國立臺北科技大學
車輛工程系所
101
Most current Non-Independent suspensions use simple 4-bar linkages by linking them to bodies to achieve the resistance of rolling. However, some of these mechanisms occupy a large quantity of space, which reduce the passenger space, and even increase the weight of entire vehicle. This study proposes several types of planetary gear mechanism to substitute the original 4-bar linkage, by using the features of straight track on specific condition, in addition to minimize the size of mechanism, then develop a novel Non-Independent suspension. According to body roll angle versus roll stiffness and body center gravity translation, this study selects the best mechanism design way which has good performance on roll stiffness, center gravity location and size. The purpose is to let passengers tilt less during cornering, and maintains the axle being horizontal to the road, which made more tire contact to the road to ensure the safety and stability of driving.
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Cai, Yu-cheng, and 蔡育誠. "Mechanism Dynamic Simulation and Analysis of Multi-Wheeled Independent Suspension System under Steering." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/85424927350341891234.
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碩士國立雲林科技大學
機械工程系碩士班
99
This research aims at the mechanism dynamic simulation and anslysis of Multi-Wheeled independent hydropneumatic suspension system. Utilization of the CAD software SolidWorks to model the vehicle and the CAE software ADAMS to make dynamic simulation under different speed. Roll angle, lateral acceleration, and the maximun force of hydropneumatic suspension are the three indexes to evaluate steering operation. In simulation set the mass center in three types of position (front, middle, rear) to observe car steering situation. Next, using the FEM software ANSYS to analyze the stress distribution on important components of independent suspension system, and improve the strength of independent suspension system finally.
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Liao, You-Jhih, and 廖友志. "The Roll Angle Analysis of Multi-Wheeled Independent Suspension System by Taguchi Method." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/43323251012326859912.
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碩士國立雲林科技大學
機械工程系碩士班
97
This research focus on roll angle analysis of Multi-Wheeled independent hydropeneumatic suspension system. We will simulate the vehicle roads changing that it will change roll angle of the vehicle , and use roll angle to estimate the steering of the vehicle in the different mass center positions (Front , Middle , Rear). The major parameters of steering are coefficient of elasticity and damping for Multi-Wheeled independent suspension. Using Taguchi Methods to find the most influent parameters of suspension system in different locations of mass center and speeds, and to improve the driving stability of the vehicle.
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Chen, Szu-tsai, and 陳思財. "The Study for the Mechanism of a Two Degree-of-freedom Independent Suspension System." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/88543927341522252558.
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碩士逢甲大學
材料與製造工程所
95
This thesis is to set up the dynamic platform of experiment of single-wheel independent suspension system in heavy-duty vehicle. We measure the dynamic behaviors of single-wheel independent suspension system in different bearing the weight with platform, and study the sport behavior that the single-wheel independent suspension mechanism. And then establish mathematical model of the mechanism of a two degree-of-freedom independent suspension system and analyze the dynamic behavior trend of simulation of the different weight. In addition to we input the road surface displacement from the dynamic experiment to mathematical model, and analyze the similarities and differences between the comparative experimental data and simulation result. It can use to full car model numerical simulation analysis in the future, and predict that the performance that the vehicle designs behaves.
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Yang, Chen-Yi, and 楊振翊. "Dynamic Simulation and Analysis of Single Joint Offset of Multi-Wheeled Independent Hydropneumatic Suspension System." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/18503244490645952818.
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碩士國立雲林科技大學
機械工程系碩士班
95
The dynamic load that the multi-wheeled heavy vehicle drives through the drastic road, may cause the suspension system destruction and affect the safety of structure. This research aims at the dynamic simulation and analysis and the strength of single joint offset of multi-wheeled independent hydropneumatic suspension system, provided that the multi-wheeled heavy vehicle drives on various regular road conditions. According to the traffic regulations to design a four-axle heavy vehicle with double wishbone type for two front axles and trailing arm type for two rear axles. The vehicle use independent hydropneumatic suspension system. Utilization of the CAD software Solid Edge to model the vehicle and the CAE software ADAMS to make dynamic simulation, and utilization of the FEM software ANSYS to analyze the stress distribution of suspension system, then improves the strength of independent offset single joint hydropneumatic suspension system.
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HSIEH, TZU-CHIEH, and 謝子傑. "Study on an Intelligent Bicycle Front Suspension Fork System Applying Independent Component Analysis and Fuzzy Control." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/7sfh72.
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碩士國立虎尾科技大學
機械設計工程系碩士班
106
This research focuses on the riding comfortability of a bicycle with a front shock absorber and proposes a hardware and software design of an “add-on” type automatic shock absorber control system, the ShockTuner. The software controller switches the damping coefficient into various levels according to the road condition as well as the chassis vibrates. This study provides a computer-aided analysis model for ShockTuner frame including the actuator, verifying its structural strength and usability during certain vibrating situations. The authors implement a ShockTuner prototype and verify its functions and specifications on a standardized road surface with bumpers for various body weights, chassis velocities and controller parameters, and further feed the shock absorbing performance back to the parameter setting criteria. This research uses Android mobile devices as intermediary devices to transfer data and sensor signals between a cloud server and ShockTuner. ShockTuner detects the road condition in realtime with the accelerometers, derives the desired damping coefficient by using the user pre-settings , updates the settings and uploads them to the cloud database via Bluetooth and Wifi connections through our Android APP "STBicycle.". It follows the standards of cloud APPlication integration platforms NoSQL and BaaS. STBicycle allows riders to manually override the pre-settings for their own comfortability preferences, as well as displays sport records, parameters and chatting information.
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顏明俊. "The Study of the Structures and Finite Element Analysis of Lower Arm in Front Independent Suspension system of Automotive." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/42567140179281242065.
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碩士國立交通大學
工學院精密與自動化工程學程
100
This study proposes a finite element model of L type lower arm in front independent suspension system of automotive. And discuss the static stress in L-type lower arm by geometric form, dimension of cross-section and section layout. We can obtain the strength data of L-type lower arm in four direction of vehicle coordinate by static destructive test. It shows that L-type lower arm can not satisfy the specification in FT direction. Firstly, inputting the required load data to finite element model, then setting the same boundary condition as static destructive test and then choose the correct element type & size. The next step is to solve several modified case to find the minimum dimension of cross-section, the appropriate structural section layout and the correct form shape which can be satisfied the specification. This result of the study can use for preliminary design of L-type lower arm.
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W, Wu S., and 巫錫汶. "Dimensional Synthesis and Position Analysis of Vehicle Independent Front Suspensions." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/51069319849218731522.
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碩士國立成功大學
機械工程學系
89
Suspensions are usually divided into two categories: solid axles and independent suspensions. Each wheel of a vehicle can move without affecting one another when using independent suspension systems. Independent front suspensions are widely used in light trucks and passenger vehicles recently. Independent suspensions can not only offer larger frame space but also reduce the wheel vibration in steering. Independent suspensions can also keep the tires in vertical positions on rough roads. Besides, independent suspensions allow long distance for the wheels to move up and down. This allows the suspension mechanism to absorb more energy. The dynamic properties of vehicle suspension systems depend upon the dimensions of the mechanisms and the external forces acting on the wheels. Therefore the dimensional synthesis of mechanism plays an important role in vehicle suspension design, especially in front suspensions, where steering mechanisms are present. The relative positions between wheels and the vehicle frame during steering will also affect the vehicle stability. This thesis takes the Short-Long Arm and the MacPherson Strut suspensions as examples of front suspensions, to study the synthesis and analysis of front suspensions. We derive synthesis equations and use numerical continuation method to solve them. Then we analyze the camber angle of the wheel base on our synthesis result. In these suspensions, there are three dyads of interest: S-S, R-S, and S-P dyads. To simplify the synthesis equations, we use displacement matrix and screw triangle geometry. In analysis, we solve the precision location of the wheel reference point by using Newton method. The analysis shows all the characteristics of suspensions between limiting positions. From the analysis results, we can not only evaluate the vehicle suitability but also obtain more parameters and know how they affect the performance of the mechanism. As a result, the design of suspension mechanism can be substantially improved.
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Guerreiro, Nuno Miguel. "Suspensão pseudo-levitante com estabilização independente da massa não-suspensa." Master's thesis, 2012. http://hdl.handle.net/10400.1/3348.
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Dissertação de mest., Engenharia Eléctrica e Electrónica, Instituto Superior de Engenharia, Univ. do Algarve, 2012A suspensão dos veículos automóveis tem a função de estabilizar tanto a estrutura do próprio veículo como os passageiros, isolando-os das oscilações provocadas pelas irregularidades das vias de circulação, dando um bom conforto aos passageiros. Ao mesmo tempo tem de se assegurar o bom contacto entre as rodas e a estrada, característica que estabelece a segurança do veículo. A utilização de actuadores electromagnéticos permite reduzir ou mesmo anular as oscilações da estrutura do veículo, como se este levitasse sobre a estrutura das rodas. No entanto, esta solução põe em causa o bom contacto dos pneus com a estrada, reduzindo a segurança do veículo. Neste projecto é utilizado uma massa suplementar e independente da massa não suspensa com o objectivo de estatizar ou melhorar a estabilização das oscilações do pneu, e de modo a que sem por em causa o conforto conseguido com o sistema de levitação se assegure o bom contacto do pneu com a estrada. Posteriormente, a parte experimental será realizada com simulações em MATLAB e Simulink. São apresentadas simulações tanto do sistema estudo como dos sistemas já existentes, para que se possa fazer uma análise comparativa dos resultados e se retire as conclusões. Da análise dos resultados, é clara a melhoria da característica de segurança (o bom contacto dos pneus com a estrada) face á suspensão pseudo-levitante. Para além de melhorar os aspectos de segurança foi conseguido manter as características de conforto (consideradas ideais).