Browse Publications Technical Papers 2019-26-0003
2019-01-09

Implementation of Active & Passive Safety for Heavy Article Tilter and Positioner (HATP) 2019-26-0003

Mobile heavy article tilter and positioner (HATP) is special purpose vehicle designed to level, articulate and positioning of very heavy load within the accuracy of arc minutes and in a stipulated time in fully auto mode. HATP system uses sophisticated electronic controller system to carry out required task in auto mode. This electronic controller system comprises of various types of electronic hardware, software, sensors and actuators. As this system is dealing with heavy load, any failure in any of subsystem of HATP can result into catastrophe. Therefore active and passive safety measure at various levels must be incorporated into system which firstly prevents the failure and reduce the effect of failure. The safety system for HATP system has been divided in three major levels: 1. Access level safety 2. Operational safety 3. Preventive safety. All three levels of safety is incorporated at appropriate subsystem based on Risk Priority Number (RPN) and failure mode effect analysis. The subsystems of HATP have been divided in hyper critical, critical and sub-critical systems. The integrated scheme of active and passive safety for HATP system along with implementation details are described and presented. The HATP system is taken as an exemplary system but the scheme and methodology is applicable and valid for other critical system as well.

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