Horbovyy A. The scientific principles of improved adaptive mechanized technology of flax-harvesting

Українська версія

Thesis for the degree of Doctor of Science (DSc)

State registration number

0507U000541

Applicant for

Specialization

  • 05.05.11 - Машини і засоби механізації сільськогосподарського виробництва

24-10-2007

Specialized Academic Board

Д 27.358.01

National Scientific Center "Institute of Mechanization and Electrification of Agriculture"

Essay

Object - flax-harvesting aggregates of existing constructions, and also the new harvesters, the mechanised processes and techniques of harvesting of long-fibred flax. Purpose - to raise efficiency of the adaptive mechanised technique of long-fibred flax harvesting on the basis of a system justification of directions of technological and structural development of the flax-pulling machines complexes adapted for natural field conditions of the hook-on flax-harvesting aggregate movement and a self-propelled fibre-flax combine, rational design parameters of the flatteningthe apparatus and an operative choice of a mode of harvesting. Methods - Working out and the analysis of mathematical models were carried out with use of modern methods of mechanical and mathematical simulation and computer programs. Also positions of the systems analysis, higher mathematics, theoretical mechanics, theories of machines and mechanisms are used. Laboratory and field researches were executed with application of standard and specially designed techniques. Novelty - 1) possible directions of refinement of the adaptive mechanised technique of long-fibred flax harvesting for the first time are defined and the most effective is justified among them; 2) the theoretical fundamentals for the first time are developed and mathematical models of parallel-plane movement of hook-on and self-propelled flax-harvesting aggregates across the field are justified; 3) rational kinematic conditions (a velocity of movement and an admissible angle of rotation) of aggregates which maximum ensure agrotechnical requirements to prolixity and a linearity of long-fibred flax caulescent ribbons for the first time are defined; 4) the theoretical fundamentals are explicated and mathematical models of an oscillating motion of hook-on and self-propelled fibre-flax combines on irregularities of a surface of soil are justified; 5) have received the further development the theoretical fundamentals of process of a bruising of flax, rational diameter of flattening rollfor the first time is justified; 6) the technique of definition of an effective mode of long-fibred flax harvesting according to the adaptive mechanised technique on the basis of its coordination with characteristics of a plant stand and weather conditions for the first time is developed. Results of investigation. On the basis of outcomes of research constructions of flattening and pulling mechanisms of flax-harvesting aggregates and their end-effectors which are protected by 2 patents are offered. Outcomes of researches and the received recommendations can be used at projection, working out and modernising of new constructions of flax-harvesting aggregates. Branch - cars and means of mechanisation of a farm-production

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