In this paper OmniKity-III (OK-III), a novel wheeled omni-directional mobile robot is developed and its kinematic model and control laws are derived. A special gear train was developed to have omnidirectional mechanism using conventional tire wheels. Several control laws are provided by considering the robot as a redundantly actuated wheeled mobile robot (WMR) on the plane. Since the robot has ...

We simulate the dynamic and temperature depen dent behavior of two di erent Micro Electro Mechanical Systems MEMS by utilizing recently developed par allel codes which enable a coupling of length scales The novel techniques used in this simulation accurately model the behavior of the mechanical components of MEMS down to the atomic scale by combining the power of an atomistic simulation with th...

Abstract: This paper presents a design approach for the configuration synthesis of series-parallel hybrid transmissions with eight-bar mechanisms. The final design consists of 54 mechanisms with eight members and twelve joints including a simple planetary gear train (PGT) and a double planet PGT. Then, by using the techniques of power and clutch arrangements, new series-parallel hybrid transmis...

  This study aimed to design a bycatch reduction device (BRD) for shrimp beam trawl, which is manufactured by flexible materials to reduce bycatch for the gear in the South Sea of Korea. The model test was carried out to understand the shape of the gear in the water and to measure the variation of flow speed due to the BRD in a circulating water channel. Catches were compared between a shrimp b...

This paper is on the assessment for Mode III crack propagation under influence of primarily Rolling Contact Fatigue (RCF) in integrated thin-rimmed planetary gears and its bearings, design development a test gearbox full-scale testing such 3-gear train planet layout. It response to ‘Innovative DEsign Reliable PLANEt bearings’ (IDERPLANE) research project which will address concern high RCF gear...

Three types of multibody models are presented for the investigation of the internal dynamics of a drive train in a wind turbine. The first approach is limited to the analysis of torsional vibrations only. Then, a rigid multibody model is presented with special focus on the representation of the bearings and the gears in the drive train. The generic model implementation can be used for parallel ...

Tooth root crack is considered as one of the crucial causes of failure in the gearing system and it occurs at the tooth root due to an excessive bending stress developed in the root region. The modern power transmission gear drives demand high bending load capacity, increased contact load capacity, low weight, reduced noise and longer life. These subsequent conditions are satisfied by the aid o...