Šiame darbe yra nagrinėjama automobilio važiuoklė , jos konstrukcija,panaudojau programine įranga skirta inžineriniams skaičiavimams ir projektavimui.Automobilio važiuoklės paskirtis – švelninti smūgius i kėbulą atsirandančius dėl kelio nelygumų.Automobilio pakaba turi užtikrinti kuo sklandesnį ir saugesnį važiavimą.Tiriamajame darbe nagrinėjama šiuolaikinė programinė įranga projektavimui ir analizei.Projektuojamai pakabai keliami rezultatai: 1. Turi būti kiek galima lengvesnė; 2. Pigiai pagaminama ir eksploatuojama; 3. Turėti geras kinematines savybes kad nesikeistų erdvinė rato padėtis(provėža,rato išvirtimo kampas) Tiriamojo darbo tikslai: 1. suprojektuoti pakabos erdvinį kinematinį modelį 2. Atlikti projektuojamų detalių analizę su Cosmos Motion programa; 3. Išnagrinėti pakabos sandarą ir veikimo principą; Tyrimui taikome šiuolaikinį automatizuoto projektavimo programinį paketą „Solid Works“.Taikant šiuos paketus žymiai sumažėja gaminio sukūrimo laikas,tokie pat komponentai gali būti panaudoti daug kartų ir nereikia perbraižyti. Atliekant pakabos projektavimą buvo panaudoti kiek galima mažesni ir lengvesni pakabos elementai tai leido sumažinti pakabos svorį.Suprojektuota svirtis iš vamzdinio profilio yra 3 kartus lengvesnė.Suprojektuota apatinė svirtis yra lengvesnė ir mažesnių matmenų nei įprasta standartinė.Atlikus apatinės svirties analizę baigtinių elementų metodu,nustatyta kad apatinė svirtis yra pakankamo stiprumo ir standumo. / The cars chassis analyses and analyze of construction are made in this work. I have used software, for engineering calculations and projecting. The aim pf chassis is to make hits to cars body softer, witch occurs because of bad road. The cars chassis have to ensure the safer and smoother driving as much as possible. In the searching work, we are studying nowadays software for projecting and analyzes. We have requirements for projecting chassis: 1. It has to be light (not heavy) as much as possible; 2. It has to be done and exploitation cheaply ; 3. it has to have good kinematical properties, to ensure spatial wheal stability (rut and wheal flare angle should not change). The aims of researching work: 1. Calculating loads when car is crouched during stopping. 2. Make analyze of body using COSMOS Motion software; 3. Analyze chassis structure and working rules. For the research we a using nowadays automated projecting software packet “Solid Works.” Using these packets, we can create product much quicker, same components we can use few times and we do not need to redraw them. In the chassis projecting we have used lighter and smaller elements to reduce weight of chassis. Projected lever from tube profile is 3 times lighter. Projected end corpus, is lighter and smaller measurements comparing to originals. After analyzes of chassis body using method if terminative elements, we designate, that body is strong enough and tight.

The engineering of biological systems with predictable behavior is a challenging problem. One reason for this difficulty is that engineered biological systems are embedded within complex and variable host cells. To help enable the future engineering of biological systems, we are studying and optimizing the interface between an engineered biological system and its host cell or ``chassis''. Other engineering disciplines use modularity to make interacting systems interchangeable and to insulate one system from another. Engineered biological systems are more likely to work as predicted if system function is decoupled from the state of the host cell. Also, specifying and standardizing the interfaces between a system and the chassis will allow systems to be engineered independent of chassis and allow systems to be interchanged between different chassis. To this end, we have assembled orthogonal transcription and translation systems employing dedicated machinery, independent from the equivalent host cell machinery. In parallel, we are developing test systems and metrics to measure the interactions between an engineered system and its chassis. Lastly, we are exploring methods to``port'' a simple engineered system from a prokaryotic to a eukaryotic organism so that the system can function in both organisms. / Poster presented at the 2005 ICSB meeting, held at Harvard Medical School in Boston, MA.

While typical telemetry processing systems are fixed, ground-based assets, certain mission profiles or telemetry acquisition models may involve telemetry processing systems which reside on other platforms, such as ships, mobile vehicles, or airplanes. The design and implementation of telemetry processing systems for these platforms poses unique challenges, which may include requirements for unusual mechanical packaging, heightened electromagnetic sensitivity, or specialized electrical interfaces. This paper presents some of the key challenges involved in the design and implementation of an airborne telemetry processing system and discusses how lessons learned from solving these challenges may be applied to future telemetry processing system designs.

The aim of my diploma thesis was engineering design of 4x4 chassis dynamometer model at 1:10 scale for presentation purpose and for testing RC cars models. The first part describes the current types of chassis dynamometers. The main goal of the thesis was designed the model itself in order to produce some parts of the dynamometer using 3D printing. The work also includes production drawings of individual parts and economic estimate of the entire production.

The master's thesis describes the complex design of autonomous mobile robot and its realization. It consists of the design of the chassis, actuators, safety components and electronics. The design part is given by specifications defined by external firm; the specifications are overviewed in the introduction section. The design part describes the function of particular elements the construction nodes consist of. Follow-up chapters solve the implementation of electronics in construction design and also the mounting of the outside shell to the frame. Constructional design of autonomous robot Bender III is the main result of this thesis. All required design and functional specifications were met.

This work deals with the design of chassis for race car category E2 made from aluminium honeycomb sandwich, design of roll cage and conception of engine mount. In the text are FEM analysis, which are focused on torsional rigidity of chassis and strength properties of roll cage.

Finite element is used to predict the torsional stiffness and natural frequency response of a FSAE vehicle hybrid chassis, utilizing a carbon fiber reinforced polymer sandwich structure monocoque and a tubular steel spaceframe. To accurately model the stiffness response of the sandwich structure, a series of material tests for different fiber types has been performed and the material properties have been validated by modeling a simple three-point-bend test panel and comparing the results with a physical test. The torsional stiffness model of the chassis was validated with a physical test, too. The stiffness prediction matches the test results within 6%. The model was then used to model the natural frequency response by adding and adjusting the materials’ densities in order to match physical mass properties. A hypothesis is made to explain the failure of the engine mounts under the dynamic response of the frame.

Indiana University-Purdue University Indianapolis (IUPUI) / In this project, a chassis concept has been developed for a small electric vehicle ’minibus’. The vehicle is intended to be used as a transport between agricultural locations in Ethiopia to cities where the products can be sold. The objective is to develop a chassis that can house several different modular structures for the purposes of transporting refrigerated goods, a mobile power grid, or people. Literature studies have been conducted on current electric vehicle markets, battery markets, chassis materials, and optimal cross-sections. The battery housings have also been analyzed from an environmental perspective to account for conditions in Ethiopia. Based on this, it was found that a four-wheeled ’minibus’ design including space for approximately fourteen custom batteries is optimal. It is essential to keep in mind that this project has been carried out both on a conceptual level within the framework of a degree project as well as a production project for use in Ethiopian rural areas. This master thesis project aims to provide a solid benchmark for further development and research within the subject.

No description available.

Each year, the Virginia Tech (VT) Formula SAE (FSAE) team creates a high performance car to compete against 120 teams from around the world in a series of dynamic events evaluating acceleration, maneuverability, and handling. In an effort to improve upon the VT 2013 car, the torsional stiffness of the chassis was increased. Increasing the torsional stiffness of the chassis allows the suspension to be more precisely tuned, resulting in a better overall performance. An investigation was conducted into methods for improving the chassis stiffness, and it was determined that many state-of-the-art vehicles from go-karts to super cars incorporate strength-bearing, tailored advanced composite materials in their structure. Examples of components that use composites in vehicles include sandwich structures in load-bearing panels, layups in the skin of vehicles for aesthetic purposes and carbon-fiber frame tubes. The VT FSAE car already includes untailored carbon-fiber panels on the bottom and sides of the structure for packaging and aerodynamic purposes. By integrating and optimizing these carbon-fiber panels, the torsional stiffness and therefore overall performance of the structure may be increased. This thesis explores composite testing, optimization methods, experimental and computational analysis of the chassis, and results. The fiber orientation of the panels may be optimized because carbon-fiber composite materials are generally anisotropic. Therefore the composite materials can be tailored to maximize the stiffness, resulting in the optimum stiffness per added weight. A good measure for testing stiffness per added weight is through measuring natural frequencies because natural frequency is proportional to stiffness per unit mass. A computer program was developed in MATLAB to optimize the composite configuration, and uses an objective function involving the first three natural frequencies of the original steel space frame chassis and the first three natural frequencies of the steel chassis augmented with three composite panels. The composite material properties were determined using specimen tensile testing and checked with finite elements. The natural frequencies of the half-scale chassis were determined experimentally, compared to the simulated version, and varied by less than seven percent. The optimization of the full-scale model determined that eight layers of optimized, integrated carbon-fiber composite panels will increase the first, second, and third natural frequencies by sixteen, twenty-six, and six percent, respectively. Natural frequency increases of these amounts show that by using tailored, load-bearing composite panels in the structure, the torsional stiffness of the structure increases, resulting in easier suspension tuning and better performance at the VT FSAE competitions. / Master of Science