Global ETD Search

521	Příprava a organizace výstavby výrobního areálu / Preparation and organization of the production area's construction facility Řeháček, Martin January 2013 (has links) This master’s thesis relate to the preparation and organization of the production area’s construction of the SPEDUR company in Žďár nad Sázavou. The thesis contents technical report on the construction technological project, construction site, time plans, project of the equipment site, draft of the mechanisms, control and testing plan, environmental plan, risks of safety and health at work and calculation for this construction.
522	Stavebně technologický projekt tepelného napaječe v Jižních Čechách / Construction Technological Project of a Heat Feeder in South Bohemia Handlíř, Jan Unknown Date (has links) The subject of the diploma thesis is a technological construction project of heat feeder on the hot water pipeline between České Budějovice and nuclear power plant Temelín. The main object is an industrial hall made of steel and brick administrative part. The hall is a steel structure clad with sandwich panels. The administrative part is single-storey building from bricks and has a flat roof. The construction also includes an access road with car park.
523	Stavebně technologický projekt výrobní haly v Hodějicích / Construction Project for Implementation of Industrial Hall in Hodějice Koudelková, Anna Unknown Date (has links) The final thesis is focused on construction of the complex Milmar s.r.o. company, specifically, it focuses on the construction technology project of the SO02 Production Hall building. Diploma thesis detail solved through technological regulations prefabricated reinforced concrete skeleton construction of the hall and then implement concrete floors with infill. For the construction of the hall, an itemized budget was prepared with a statement of area, time schedule, health and safety plan, design of construction supply and assessment of transport routes, the main construction mechanisms were selected and variants of the main construction mechanisms, control and test plans were assessed. An accompanying and technical report, a construction technology study, and the sustainability certification of the LEED 2009 system were prepared for the entire construction. The text and drawing part was prepared according to the assignment of the diploma thesis.
524	Placement of Controls in Construction Equipment Using Operators´Sitting Postures : Process and Recommendations Jalkebo, Charlotte January 2014 (has links) An ergonomically designed work environment may decrease work related musculoskeletal disorders, lead to less sick leaves and increase production time for operators and companies all around the world. Volvo Construction Equipment wants to deepen the knowledge and investigate more carefully how operators are actually sitting whilst operating the machines, how this affects placement of controls and furthermore optimize controls placements accordingly. The purpose is to enhance their product development process by suggesting guidelines for control placement with improved ergonomics based on operators’ sitting postures. The goal is to deliver a process which identifies and transfers sitting postures to RAMSIS and uses them for control placement recommendations in the cab and operator environments. Delimitations concerns: physical ergonomics, 80% usability of the resulted process on the machine types, and the level of detail for controls and their placements. Research, analysis, interviews, test driving of machines, video recordings of operators and the ergonomic software RAMSIS has served as base for analysis. The analysis led to (i) the conclusion that sitting postures affect optimal ergonomic placement of controls, though not ISO-standards, (ii) the conclusion that RAMSIS heavy truck postures does not seem to correspond to Volvo CE’s operators’ sitting postures and (iii) and to an advanced engineering project process suitable for all machine types and applicable in the product development process. The result can also be used for other machines than construction equipment. The resulted process consists of three independent sub-processes with step by step explanations and recommendations of; (i) what information that needs to be gathered, (ii) how to identify and transfer sitting postures into RAMSIS, (iii) how to use RAMSIS to create e design aid for recommended control placement. The thesis also contains additional enhancements to Volvo CE’s product development process with focus on ergonomics. A conclusion is that the use of motion capture could not be verified to work for Volvo Construction Equipment, though it was verified that if motion capture works, the process works. Another conclusion is that the suggested body landmarks not could be verified that they are all needed for this purpose except for those needed for control placement. Though they are based on previous sitting posture identification in vehicles and only those that also occur in RAMSIS are recommended, and therefore they can be used. This thesis also questions the most important parameters for interior vehicle design (hip- and eye locations) and suggests that shoulder locations are just as important. The thesis concluded five parameters for control categorization, and added seven categories in addition to those mentioned in the ISO-standards. Other contradictions and loopholes in the ISO-standards were identified, highlighted and discussed. Suggestions for improving the ergonomic analyses in RAMSIS can also be found in this report. More future research mentioned is more details on control placement as well as research regarding sitting postures are suggested. If the resulted process is delimited to concern upper body postures, other methods for posture identification may be used. Motion capture controls placement posture identification construction equipment operator environment volvo ce depth sensor inertial optical zone of reach zone of comfort H-point SIP Seat index point product development ergonomics Work Related Musculoskeletal Disorders Human Machine Interaction HMI WRMD Anthropometry Catia RAMSIS GEometric Kinematic backhoe loader wheel loader articulated hauler excavator Faro-Arm CMM Skeleton points skin points sitting posture operating posture categorization V model visual fields percentile road condition skill level sight point Abrasion speed visibility FOV field of view primary secondary tertiary ZoC ZoR mid-eye Design aid safety heavy truck
525	TU-Spektrum 2/2007, Magazin der Technischen Universität Chemnitz Steinebach, Mario, Thehos, Katharina, Häckel-Riffler, Christine, Brabandt, Antje, Mahler, Janine, Chlebusch, Michael, Doriath, Thomas, Leithold, Nicole, Linne, Carina 14 September 2007 (has links) (PDF) zweimal im Jahr erscheinende Zeitschrift über aktuelle Themen der TU Chemnitz, ergänzt von Sonderheft(en) Absolventen Ausländische Studenten Bachelor-Studiengänge Bücher Computerchips Datenbankangebot Bibliothek ETH Zürich Elektronische Semesterapparate Familiengerechte Hochschule Fernkälte Fortis Saxonia Fudan Universität Humboldt-Stipendium Hyperaktivität Internationales Kompetenzzentrum Strukturleichtbau Kulturfestival Begegnungen LKW-Fahrer Lingua et Opinio Lobacevski-Universität Master-Studiengänge Nahinfrarot-Spektrometer Prorektoren Radio UNiCC Reagi Schülerlabor Siemens Smart Systems Campus Tuchfühlung Universität Stellenbosch Universitätsball Unternehmensnetzwerke Vertragsgestaltung Zentrum für Fitness und Gesundheit Zentrum für Mikrotechnologien American-African-European Summer School Future Truck Rice-University Target Costing ddc:050 Bibliothek Brennstoffzelle Deutsche Forschungsgemeinschaft E-Learning Familienplanung Internettelefonie Konrad-Adenauer-Stiftung Kältespeicher Mikrosystemtechnik Naturwissenschaften Psychologie Rechenzentrum Rektor Sport Studentenwerk Studienberatung Technik Unternehmensgründung Verein Deutscher Ingenieure Weiterbildung Zielkostenrechnung
526	TU-Spektrum 2/2007, Magazin der Technischen Universität Chemnitz Steinebach, Mario, Thehos, Katharina, Häckel-Riffler, Christine, Brabandt, Antje, Mahler, Janine, Chlebusch, Michael, Doriath, Thomas, Leithold, Nicole, Linne, Carina 14 September 2007 (has links) zweimal im Jahr erscheinende Zeitschrift über aktuelle Themen der TU Chemnitz, ergänzt von Sonderheft(en) info:eu-repo/classification/ddc/050 ddc:050
527	Minimization of Noise and Vibration Related to Driveline Imbalance using Robust Design Processes Al-Shubailat, Omar 17 August 2013 (has links) Variation in vehicle noise, vibration and harshness (NVH) response can be caused by variability in design (e.g. tolerance), material, manufacturing, or other sources of variation. Such variation in the vehicle response causes a higher percentage of produced vehicles to have higher levels (out of specifications) of NVH leading to higher number of warranty claims and loss of customer satisfaction, which are proven costly. Measures must be taken to ensure less warranty claims and higher levels of customer satisfactions. As a result, original equipment manufacturers (OEMs) have implemented design for variation in the design process to secure an acceptable (or within specification) response. The focus here will be on aspects of design variations that should be considered in the design process of drivelines. Variations due to imbalance in rotating components can be unavoidable or costly to control. Some of the major components in the vehicle that are known to have imbalance and traditionally cause NVH issues and concerns include the crankshaft, the drivetrain components (transmission, driveline, half shafts, etc.), and wheels. The purpose is to assess NVH as a result of driveline imbalance variations and develop a tool to help design a more robust system to such variations. program. Java quality engineering quality capability studies manufacturing processes manufacturing engineer design engineer sales profit customer concern warranty objectionable Eigen functions vectors Eigen Eigen values identity Euler differential equations differential transfer case shaft driveline static imbalance dynamic imbalance passenger customer driver inboard ear driver outboard ear steering wheel seat track variation Gamma distribution normal distribution standard deviation average variance mean phasor victor scalar linear system LTI linear time invariant transfer function output input microphone accelerometers tachometer channels order frequency frequency domain time domain convolution Transformation Fourier Transformer Fourier imaginary and real logarithmic decibel sensitivity curves run down run up two wheel drive Four Wheel Drive Nissan Truck OEM Original Equipment Manufacturers Data Acquisitions Channels Simulation Six Sigma variability Design Robust sensitivity Vibration Imbalance Noise Harshness NVH Driveline
528	Evaluation of Target Tracking Using Multiple Sensors and Non-Causal Algorithms Vestin, Albin, Strandberg, Gustav January 2019 (has links) Today, the main research field for the automotive industry is to find solutions for active safety. In order to perceive the surrounding environment, tracking nearby traffic objects plays an important role. Validation of the tracking performance is often done in staged traffic scenarios, where additional sensors, mounted on the vehicles, are used to obtain their true positions and velocities. The difficulty of evaluating the tracking performance complicates its development. An alternative approach studied in this thesis, is to record sequences and use non-causal algorithms, such as smoothing, instead of filtering to estimate the true target states. With this method, validation data for online, causal, target tracking algorithms can be obtained for all traffic scenarios without the need of extra sensors. We investigate how non-causal algorithms affects the target tracking performance using multiple sensors and dynamic models of different complexity. This is done to evaluate real-time methods against estimates obtained from non-causal filtering. Two different measurement units, a monocular camera and a LIDAR sensor, and two dynamic models are evaluated and compared using both causal and non-causal methods. The system is tested in two single object scenarios where ground truth is available and in three multi object scenarios without ground truth. Results from the two single object scenarios shows that tracking using only a monocular camera performs poorly since it is unable to measure the distance to objects. Here, a complementary LIDAR sensor improves the tracking performance significantly. The dynamic models are shown to have a small impact on the tracking performance, while the non-causal application gives a distinct improvement when tracking objects at large distances. Since the sequence can be reversed, the non-causal estimates are propagated from more certain states when the target is closer to the ego vehicle. For multiple object tracking, we find that correct associations between measurements and tracks are crucial for improving the tracking performance with non-causal algorithms. evaluation target tracking multiple sensors non-causal smoother smoothing tracking vehicle tracking camera lidar estimate estimation prediction vehicle dynamics sensor fusion real-time tracking extended kalman filter filter validation validation position estimation velocity estimation dynamic model model complexity multi object tracking multiple object tracking single object tracking data association tracking fundamentals iterated kalman filter track management gnn global nearest neighbour mahalanobis mahalanobis distance performance evaluation differential gps dgps roi ego several sensors sensors rmse root mean square error invertible motion anti-causal motion anti-causal tracking constant velocity gnn imu tfs two filter smoother ekf rts radar inertial measurement unit nonlinear nonlinear systems mono camera monocular camera noise model tracking performance fixed interval smoothing m/n logic centralized fusion non-causal object tracker car tracking car dynamics automotive active safety object tracking automotive industry thesis master reverse dynamics reverse tracking reverse sequence sequence tracking data propagation ground truth estimating ground truth additional sensors mounted sensors true estimates environment comparison algorithm independent targets overlapping measurements occluded track switch improve lower uncertainty more certain state process noise covariance sampling image sprt adas cnn cv pdf track target ego tracker tentative track observatiom online tracking offline tracking online offline recorded sequences robust self driving self-driving car traffic trajectory true state scenario scenarios future accurate output advanced driver assistance systems non-linear complex noise pedestrian truck bus maneuvering vehicles processed measurement frame state correction probability density function tuning likelihood transition measurement motion model recursion gaussian approximation distribution linear jacobian multiplicative noise ratio ad hoc ad hoc state space approach backward auction euclidean distance statistical threshold gating association margin normalize covariance matrix fusion confirmed rejected tentative history absolute error modular ego motion parameters variables logg hardware specification fused causal factorization independent uncorrelated transform moving rotation translation oncoming overtaking Control Engineering Reglerteknik

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