The master thesis deals with the design of a light tandem roller with an electric drive. The final design of the machine is designed in regard to the knowledge from design and technical analysis and the shortcomings of current rollers. The purpose of this work is to design a tandem roller which will respect the ergonomic requirements of the operator.

Due to the goals made by the European Union as well as the country of Sweden regarding the desired decrease of the ongoing greenhouse gas emissions, electrical alternatives have increased enormously in the industry and the automotive areas in recent years. By going from petrol-powered vehicles to electrical vehicles, the transport sector has the potential to produce zero direct emissions. To be able to develop electrical vehicles with the highest efficiency possible, it is of great importance to understand what losses occurs in the vehicle. By lowering these losses, we create a vehicle which both become cheaper and better for the climate. The aim of his thesis is to study the performance of the motors with different combinations of angular velocity and torque, analyse what losses occur with the combinations and also how the result is affected by the resolution of the drive cycles. Produced drive cycles, with a purpose to represent the velocity and acceleration of a vehicle in a realistic way, was used during the study to obtain a drive pattern. MATLAB was used during the whole thesis for analysis, simulation and plotting. Firstly, a method to obtain the probability of certain combinations of torques and angular velocities for a specific drive cycle was created. With this probability, a method to be able to adjust and choose the resolution of the torques and angular velocities was created. It was later concluded that these two methods functioned as desired. With the obtained combinations, the mechanical power as well as the most common losses in the electrical motor could be calculated. With this, an efficiency could be calculated and analysed. The energy demand of the different combinations was also obtained. One conclusion that could be made with this thesis was that the average efficiency did not depend on the resolution of the torque and angular velocity much at all. With a resolution going from 0.5 Nm to 20 Nm, the average efficiency only changed by below 0.3 percent units. At the end of the thesis, a continued work is proposed to implement different magnetic properties that are not accounted for in this thesis. Another suggestion made is to include scenarios where the battery is charged when a negative torque is applied to the motor shaft.

The main task of this project was to design a program for control system of dry concrete product handling line. This manufacturing line is controlled by a programmable logical controller Simatic S7 300 produced by Siemens company. A graphical touch panel TP 177A and a control desk with buttons are used as human machine interface. The developed program contains functions for control conveyors, manipulator and cleaning station. Management of formulations stored in PLC by operator is also included in program. The theoretical part deals with dimensioning of drives for two mechanical systems of this manufacturing line. Choice of power output of the electric motors depends on required torque. A fundamental principles and rules of five basic programming languages for PLC in accordance with standard IEC 61131-3 are specified here. The practical part describes project creation in Step 7 software and functions and capabilities of projected system by means of user manual.

The diploma thesis include improvement proposal of drive slewing 12,5t grabbing crane. Second part this work deal with causes which in the past lead to failure the supporting pole of grab crane by using FEM analysis. Detected causes are applied to new supporting pole of grabbing crane and comparison both results. In the last part of the thesis is constructional, technological and economical summary.

The subject of my thesis is a constructional proposal of C axis drive for vertically orientated machine. I have concerned the drive operates C axis of revolving slide. The thesis contains the cutting power study regarding the power being in effect during C axis machining, study of clearance adjustment in particular mechanisms, three constructive proposals of possible solutions, calculation of basic proposals’ demands as well as the best option selection which ideally fits to the all conditions requested by TOSHULIN, Inc.

Output of this diploma work is an overall project of the Cranked Chain Conveyer, arising from specification of the assignment. Project is divided into several phases, whereas first of them is composed of calculations and finding of necessary driving unit. First phase is followed by second phase, where I - regarding the engine power - dimension individual structural parts like loop chain, conveyer drive unit, stressing etc. In last phase I deal with drawing documentation of designed parts of the conveyer.

This master’s thesis describes the structural design of pallet conveyor for the transport pallet unit between the ground floor and upper storey of warehouse buildings, according to given technical parameters. The work includes design and functional solution for driven roller track. It solves lifting of frame cage and roller track and the pallet unit, using traction gearless drive. There is used cable transfer 2:1. Frame cage is equipped with a mandatory safety gear. The design is verified strength calculations of the frame lift and frame cage. Part of the thesis is the drawing documentation.

This graduation theses is engaged in design of additional module to wheelchair. The project should bring new solution of shape of the equipment, but at the same time keep the original frame. Final solution has sporty look and it results from inner construction and stifles sanitary sterility.

This thesis deals with design of linear external excitation drive with oscillative motion. In the first part of the work is shown describe types of linear motors. Further is a part of analysis of concrete linear drives from patents database. In the next part of this work is straight design of linear external excitation drive with oscillative motion. The conception in-clude geometric model created with software Solidworks, calculation of forces with software Ansys and dynamic models of mechanical and electrical part of drive with software Mat-lab/Simulink. And is a mentions possibility of controls of this drive too.

The diploma thesis deals with the design process of Formula SAE drivetrain. Different design possibilities were described and after that were the suitable designs chosen to be used in the team car. Then were the design parameters determined. The design of the differential gear mounting was created and it’s stress analysis was done.