engineering in order to develop different types of automations like PLC, micro The Rotary Automated Car Parking System (RACPS) belongs to the class of The programming of the microcontroller has been accomplished by using. used in an automatic car parking system software platform: from operational management and the control of pitch, converter, gearbox and brakes to PLC for control purposes), on...

The requirement for higher energy density transmissions (lower weight) in helicopters has lead to the development of the Split Torque Gearbox (STG) to replace the traditionally planetary gearbox by the drive drain designer. This may pose a challenge for the current gear analysis methods used in Health and Monitoring Systems (HUMS). Gear analysis uses time synchronous averages to separates in fr...

While operating a gear with local fault impulse is created, the high-frequency shock vibration is then generated and the vibration amplitude is modulated by the pulse force. Both the envelope and cepstrum analyses are useful tools to identify the fault frequencies and distinguish them from other frequency contents. Since the envelope analysis method provides an important and effective approach ...

We consider the efficiency of some primary discriminant functions applied in planetary gearbox diagnostics. Real data for planetary gearboxes mounted in bucket wheel excavators working in field condition are elaborated. The aim is to perform condition monitoring (faulty or healthy) of such devices. The raw recorded data (vibration series emitted by the device) were first segmented and transform...

The condition of lubricating oil used in automotive and industrial gearboxes must be controlled in order to guarantee optimum performance and prevent damage to machinery parts. In normal practice, this is done by regular oil change intervals and routine laboratory analysis, both of which involve considerable operating costs. In this paper, we present a compact and robust optical sensor that can...

Studies on fault detection and diagnosis of planetary gearboxes are quite limited compared with those of fixed-axis gearboxes. Different from fixed-axis gearboxes, planetary gearboxes exhibit unique behaviors, which invalidate fault diagnosis methods that work well for fixed-axis gearboxes. It is a fact that for systems as complex as planetary gearboxes, multiple sensors mounted on different lo...

Vibration generated by a gear-set is a signal of its technical condition. Many papers have been published on relation between the vibration signal and the condition of a gear-set. It is convenient to investigate this relation by dividing the factors which have influence on vibration generated by a gear-set into four major groups: design, production technology, operational and change of conditio...