Allu

A Device in a Container ship critical for its navigation system (NS) consists of three core components:-

(i) Gimbal platform

(ii) Computer Management System (CMS)

(iii) Data entry system

These three components have individual reliabilities of 0.945, 0.987, and 0.998 respectively.

A service bulletin has been issued requiring and overall reliability of 0.9975.

Assuming there is no possibility of any redundancy in the system.

(a) What is current reliability of navigation system (NS)?

(b) What would you do to redesign the NS to meet the required specification? Briefly discuss and justify your approach including which component you would first improve and why.

(c) Based on your approach, recalculate the reliability of the NS. Briefly comment on the implications of the result of your calculation.

(d) Assume now that as a result of your determination in the preceding question (c) you have concluded that you have no choice and must now incorporate a back-up NS into the system. Assuming the original component reliabilities, calculate the new reliability of the new navigation system.

(e) There is a second NS which is identical to, but separate from, the first. Based on your calculated reliability of the system in the preceding question (d), determine the reliability that the crew will be able to determine the ship's position.

(f) In reality, the ship has three independent NSs. What is the overall reliability of the

texted answers only no photos

ship's onboard Navigation system?