This diploma thesis deal with safety components of trailer and semitrailer technology, especially the elements for underrun protection. The first part deals with the legislative requirements on which safety elements are based. In another part are mentioned the construction solutions of underrun protection devices from the portfolio of company SVAN Chrudim s.r.o. Finally, the computational part is processed to verify sufficient strength of underpass protections.

The aim of the diploma thesis is the construction design of a semi – trailer for the purpose of road – based vehicle transportation. The construction design is complaint to the applicable legislative requirements for the corresponding trailer category. The main part of the thesis focuses on strength analysis of a semi – trailer frame using finite element method. Based on strength analysis of the semi – trailer frame, the original frame is adjusted and further optimized through subsequent analyses. The thesis additionally contains the drawing documentation.

This diploma thesis deals with the design of the frame of a trailer with a tipping body. Its main contents are stability inspection of a carrying frame, further then designing suitable construction adjustments including their check calculations of case of stress. The stability inspection of the frame is carried out by means of the finite element method. A draft of the drawing documentation of the frame is as well included in this thesis. This diploma thesis was created in collaboration with the SVAN Chrudim company, Ltd.

The purpose of this thesis is to establish the basis for a presentation study, whose goal is to approximate the problems and dilemas of special semi-trailer with extensible sidewalls construction to the future consumer. The thesis explains which parts the semitrailer is made of as well as which essentials should be considered when designing the construction itself. The paper partly shows one particular semi-trailer project. On this project the calculation of stabilisation system, solidity analysis of the extensible part frame and the complete visualization of the trailer unit have been completed.

This dissertation deals with the car trailer for wood transporting body frame concept. The main part of this work is a strength check of the supporting frame, further the design of suitable structural modifications and it’s check calculation of the stress state. The strength check of the frame is done by the help of the finite elements method. The part of this work is drawing documentation of the frame. This dissertation was developed in cooperation with SVAN Chrudim s.r.o., company.

The aim of this thesis is an analysis of the construction of a cable trailer VARIANT 200. For the calculation of load states was used a multi body system in program MSC.ADAMS. The results from these calculations were used as lifting conditions for strength control with finite element method (FEM). All acquired results were analysed and according to them changes were made to the frame construction. Part of this thesis contains drawings documenting the above mentioned changes.

Subject of this thesis is design of a timber trailer with manual control. The designed timber trailer is one of the small machines that are used for a low–volume timber production. This timber trailer operates in a rough terrain – its outstanding feature is the ability to operate on steep slopes and overcome obstacles. The concept of the control system and the safe seating of a driver are contributions to the field of ergonomics. This machine is considerate of a forest environment because it minimizes formation of soil erosion. Easy washability and maintenance are other criteria of this proposal. The functional point of the design is firmed by the purposeful and aesthetic shaping which is unique in this category. Comparison of the proposal presented in this thesis with available machines demonstrates that work of designer is indispensable part of a machine development process.

This thesis presents a comparison of fuel consumption and transportation efficiency of various transport vehicles in primary agricultural production. The first part deals with the possibility of transport of materials in agriculture. The following is a description of the compared vehicles. Finally, it describes the methodology of calculation of fuel consumption vehicles, which are then compared.

This diploma thesis deals with the concept design of the transport vehicle for a domestic animal. The aim of this work is to do the search of suspension types of trailers, to design frame and to drive a dynamic simulation of this trailer. Then check the frame with finite element method (FEM) and create construction drawings.

This dissertation thesis is concerning with an interaction between mobile working machines and rolled surfaces. Machines and their constructions parts behavior were observed. There are some machines that can change state of surface. And due to these change of surface the machine is in different conditions for drive and also for works. The interaction of working machines and rolled surfaces was categorized in this work and for each category here is a methodic work flow for solution of various cases. Three examples are described in this work. Some simulating programs were used for all cases and therefore there is a methodic work flow for creating and simulating of models. Three described examples include a complex solution of hydraulic drive for vibration exciter of vibration roller, small cleaner of canalizations with aim on load case to frame of this cart. The third example describes solution of undercarriage frames of agricultural semi-trailers. This example is the most extensive chapter from this work due to including of marketing research at the beginning of development and also verification of simulated results with results from real prototype tests at the end of development of these undercarriage frames.