Braunschweig, Techn. Univ., Diss., 2002. / Erscheinungsjahr an der Haupttitelstelle: 2002. Computerdatei im Fernzugriff.

Braunschweig, Techn. Univ., Diss., 2002. / Erscheinungsjahr an der Haupttitelstelle: 2002. Computerdatei im Fernzugriff.

Braunschweig, Techn. Universiẗat, Diss., 2002. / Erscheinungsjahr an der Haupttitelstelle: 2002.

Darmstadt, Techn. Universiẗat, Diss., 2002.

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.

On some occasions it may be inappropriate with a cameraman behind the camera. In somecases there is no cameraman available or it is a smaller event, like a family celebration, to befilmed. It can also be difficult for a cameraman to shoot from certain angles. One solution forthis kind of situations can be to remotely control the camera movements. There are thosekinds of solutions on the market today but they either address professional filmmakers or thefunctionality is limited, for example by the absence of wireless remote control.This project aims to develop a solution to the problem with absence of wireless remote controland also a solution with more flexibility and less complexity than today’s solutions. The maindifference between this and existing solutions is the use of Bluetooth technology ascommunication between the devices. The project resulted in a solution consisting of twounits; one operating unit where the camera is mounted and a remote unit for control of theoperating unit. The remote unit is managed by the filmmaker. The remote unit consist of anAndroid application on a smart and which communicates with the control unit via Bluetooth.

Zugl.: Stuttgart, Univ., Diss., 2009

Zugl.: Bremen, Universiẗat, Diss.

Zugl.: Bremen, University, Diss., 2008.

Gripdon är vanliga i många branscher. De kan exempelvis lyfta och transportera föremål såsom lådor och bilar. Gripdon kan hittas i olika storlekar, tillräckligt stora för att transportera en bil eller tillräckligt små för att sortera även piller. Normalt är gripdon anpassade till en specifik uppgift. Gripdonets form är beroende av föremålet som det ska hantera. Normalt är föremålet enhetligt i form och vikt. Utmaningen här är att projekts gripdon ska kunna hantera föremål av olika storlekar och vikter. Gripdonet som utvecklades för detta projekt kommer att transportera föremål som väger någonstans från 3 kg till 28 kg. Det erforderliga omfånget av dimensioner är som följer: höjd 200–600 mm, djup 300–1 000 mm och längd 300–1 000 mm. Förutom de olika storlekarna krävdes även att gripdonet ska förflytta föremål med tillfredställande hastighet. Initialt skulle griparen vara fäst vid manipulatorn ABB IRB 4600. Denna modell kan transportera upp till 40 kg, därför borde det utvecklade gripdonet ha en viktgräns på 12 kg. Många olika lösningar studerades för att hantera utmaningen. Den valda lösningen baserades på att ha två linjära enheter drivna av servomotorer. De linjära enheterna är synkroniserade och rör sig i motsatta riktningar. Det finns linjära enheter som möjliggör synkroniserad motsatt rörelse men de tillgängliga modellerna skulle avsevärt sakta ned och skulle inte vara väsentligt olika i vikt eller pris jämfört med den konstruerade enheten. Griparens konstruktion är baserad på det maximala kontaktområdet med lådan för att öka friktionen mellan gripdon och kartongen. Griparens form är utformad för att undvika att deformera metallen och att gripdonet inte behövs repareras under lång tid. Konstruktionens kanter är konstruerade med plåtfästen för att försäkra att gripdonet inte böjer sig. Griparens uppskattade vikt är betydligt högre än de ursprungliga förväntningarna. Därför skulle IRB 4600, 40 kg manipulatorn behöva ersättas av en modell som kan bära den uppskattade vikten (cirka 250 kg=). / Gripers are common in many industries; they can lift and transport a variety of objects such as boxes and cars, for example. Gripers can be found in a full spectrum of sizes; large enough to transport a car or small enough to sort the smallest of pills. Grippers are typically customized for a specific task; the shape of the griper is dependent on the object it will carry. Normally, the object is uniform in its shape and weight. This project required the griper to handle multiple objects of various sizes and weights, presenting a particular challenge. The griper that was developed for this project will transport objects weighing anywhere from 3 to 28 kg. The required range of dimensions are as follows; height from 200 to 600 mm, depth of 300 to 1000 mm, and length from 300 to 1000 mm. In addition to the variety of sizes, the griper was also required to move objects with speed. Initially, the griper would be attached to the manipulator ABB IRB 4600. This model can transport up to 40 kg, therefore the developed griper should have a weight limit of 12 kg. Many different solutions were studied in order to solve the challenge of multiple size and weight variations. The chosen solution was based on having two linear units driven by servo motors. The linear units are synchronized and move in opposite directions. There are linear units that allow for synchronized, opposed movement but the models available would significantly slow the movement and would not be materially different in weight or price compared to the designed unit. The design of the griper is based on allowing the maximum contact area with the box to increase friction between the gripper and cardboard. The shape of the griper is designed to avoid deforming the metal and ensuring the griper will not need to have it's parts repaired for a long time. The edges of the structure are constructed with bent sheet metal brackets, to assure the griper will not bend. The estimated weight of the griper is significantly heavier than the original expectations. Consequently, the IRB 4600,40 kg manipulator would need to be replaced with a model that can carry the estimated weight of approximately 250 kg.