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2 Zeszyty Naukowe Politechniki Poznańskiej. Budowa Maszyn i Zarządzanie Produkcją

2 2008

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Position and static force analysis of a backhoe excavating equipment

Mitrev R.

Zeszyty Naukowe Politechniki Poznańskiej. Budowa Maszyn i Zarządzanie Produkcją

2008

Nr 8

81-92

In the present study are suggested and developed new computer oriented algorithms for position and static force analysis of a backhoe excavating equipment. The position analysis is based on matrix description of the position of the bodies, which forms the open kinematic chain. The fol-lowing-up static force analysis is used for determination of the static reactions in the joints. It is performed by composition of static equilibrium conditions for each body and solution of the received system of linear algebraic equations. The developed approach is realized and automated in interactive MathcadŽ program PSAB 1.0 (Position and Static force Analysis of a Backhoe excavating equipment).

Dynamic behaviour of a spherical pendulum with spatially moving pivot

Mitrev R., Grigorov B.

Zeszyty Naukowe Politechniki Poznańskiej. Budowa Maszyn i Zarządzanie Produkcją

2008

Nr 9

81-91

A mathematical model of spherical pendulum with moving pivot is suggested and developed. Such a model allows studying the influence of the different kinematic excitations applied at the pivot point upon the kinematical and dynamical parameters of the pendulum which also determine the force in the rope. A numerical simulation for spatial curvilinear and planar with straight line motions trajectories is performed.