Vibrating screen without vibration being transmitted to supporting structure.

A maintenance system model for optimal reconfigurable vibrating screen management

The reconfigurable vibrating screen (RVS) machine is an innovative beneficiation machine designed for screening different mineral particles of varying sizes and volumes required by the customers’ through the geometric transformation of its screen structure. The successful RVS machine upkeep requires its continuous, availability, reliability and maintainability. The RVS machine downtime, which c...

Factors influencing vibration sense thresholds used to assess occupational exposures to hand transmitted vibration.

The effects of various conditions, including temporary threshold shifts (TTS) induced by exposure to vibration on vibration sense thresholds, have been investigated. The vibration sense thresholds of five subjects were measured on the middle fingertip of the left hand. A contactor with a diameter of 7 mm was surrounded by three alternative plates with holes of different sizes. The contact force...

Dupuytren’s contracture due to hand-transmitted vibration - CM8860 May 2014

Dupuytren's contracture and occupational exposure to hand-transmitted vibration

AIMS The relation between Dupuytren's contracture and occupational exposure to hand-transmitted vibration (HTV) has frequently been debated. We explored associations in a representative national sample of workers with well-characterised exposure to HTV. METHODS We mailed a questionnaire to 21 201 subjects aged 16-64 years, selected at random from the age-sex registers of 34 general practices ...

New Techniques for Vibration Qualification of Vibrating Equipment on Aircraft

All aircraft vibrate and all components are designed, tested and certified to survive these vibration levels over their entire service life. Design standards such as MIL‐STD‐810F (1) and RTCA DO‐160E (2) are often used to obtain the vibration sign‐ off test; but what is the safety margin on these tests? How many hours do they represent on real aircraft? Can the equipment life b...