Torque distribution for a six-legged robot

2006-01-01
Erden, Mustafa Suphi
Leblebicioğlu, Mehmet Kemal
This paper dwells upon the torque distribution of a six-legged robot - considering minimum energy consumption. This distribution, named "torque distribution", is performed by minimizing the square-sum of the joint torques. For multileged robots the conventional approach is to perform the force-moment distribution by minimizing the square-sum of the tip point force components. This general approach of "force distribution" is compared with the proposed approach of "torque distribution" and it is concluded that "torque distribution" is more energy efficient.

Suggestions

Optimization of AA-Battery Sized Electromagnetic Energy Harvesters: Reducing the Resonance Frequency Using a Non-Magnetic Inertial Mass
Yasar, Oguz; Ulusan, Hasan; Zorlu, Ozge; Sardan-Sukas, Ozlem; Külah, Haluk (2018-06-01)
This paper presents an optimization study for a miniature electromagnetic energy harvester, by incorporating a non-magnetic inertial mass (tungsten) along with the axially oriented moving magnets. The aim is to decrease the operation frequency and increase the output power of the harvester with the usage of higher density material and larger magnetic flux density. Dimensions of the magnets are optimized according to the harvester dimensions and magnetic flux gradients. Additionally, coil length, width, resi...
ELECTRIC DRIVE FOR FLYWHEEL ENERGY-STORAGE
TRIPATHY, SC (Elsevier BV, 1994-02-01)
This paper presents the results of experimental work on flywheel energy storage systems for city buses. An efficient electronic hardware scheme is used to start the flywheel and traction machines. This scheme has been designed, fabricated and tested in our laboratory. A low frequency a.c. has been derived from an inverter fed from a three-phase uncontrolled rectifier to start the commutatorless d.c. motors. Commutation is achieved by using a capacitor and two auxiliary thyristors, whose ratings could be a f...
Torque Components Identification of Induction Machine by FEM
Skalka, Miroslav; Ondrusek, Cestmir; Schreier, Ludek; Michailidis, Petr (2011-09-10)
This paper contains torque components identification of 3-phase induction machine. Electromagnetic torque and pulsating torque is calculated via a circular path integral of the Maxwell stress tensor which provides a convenient way of computing forces acting on bodies by evaluating a surface integral. Torque calculations are done by finite element method in ANSYS and MATLAB. Also there are identified a high harmonic components of calculated torque with additional asynchronous torque calculation. The torque i...
Energy and Time Optimal Autopilot for Electric Vehicles Performing Ackerman Cornering
Ahiska, Kenan; Özgören, Mustafa Kemal; Leblebicioğlu, Mehmet Kemal (2022-03-01)
This paper studies energy and time optimality of electric vehicles during constant Ackerman steering along a quad-circle, and proposes an autopilot assimilating the optimal results. The energy and time optimal solutions satisfying the steering and battery limitations are generated and a Pareto-front analysis is carried out with multi-objective optimization using NSGA-II algorithm. In the autopilot design, the indicators for the energy and time optimality performances are merged in a vehicle status vector. A...
Torque distribution in a six-legged robot
Erden, Mustafa Suphi; Leblebicioğlu, Mehmet Kemal (2007-02-01)
In this paper, distribution of required forces and moments to the supporting legs of a six-legged robot is handled as a torque-distribution problem. This approach is comparatively contrasted to the conventional approach of tip-point force distribution. The formulation of dynamics is performed by using the joint torques as the primary variables. The sum of the squares of the joint torques on the supporting legs is considered to be proportional to the dissipated power. The objective function is constructed as...
Citation Formats
M. S. Erden and M. K. Leblebicioğlu, “Torque distribution for a six-legged robot,” 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35948.