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2 2019

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Optimalisation of the blade movement of the mower

Škrabala Jozef, Hajdučík Adrián, Medvecký Štefan, Brumerčík František

Zeszyty Naukowe. Transport / Politechnika Śląska

2019

z. 105

213--222

This article presents the correct adjustment of the mower’s blade movement relative to the forward movement of the mower. Everywhere around us are gardens, parks and meadow, which gives us reason to solve issues with mowing. The first part of this article shows agricultural machines, which are used today and the principle of correct cut of grass stalks. The next part shows the method of adjusting the mower’s blade speed. Design of a simple model was done with the use of Solid Edge Premium CAD. For computation, MSC Adams was used and post-processing was done with the use of Matlab. The connection between MSC Adams and Matlab was created by co-simulation.

Kinematic analysis of trapezoidal suspension

Hajdučík Adrián, Škrabala Jozef, Medvecký Štefan, Brumerčík František

Zeszyty Naukowe. Transport / Politechnika Śląska

2019

z. 104

27--36

This article deals with the kinematic analysis of trapezoidal suspension. Specifically, it focuses on the behaviour of the chassis when obstacle crossing was monitored. Our team is developing an autonomous mountain vehicle that will be equipped with different working adapters such as a cutter bar and a picker. The device was designed for work on slopes, hence, must be able to overcome certain natural obstacles. This implies the need to analyse the wheel suspension kinematics. The vehicle was built on a trapezoidal suspension, which has proven to be the most suitable option with respect to operating conditions. From the results obtained, it was possible to analyse the driving characteristics of the obstacle, track the rollover limits and overall safety of operation.