Computer Simulation of LED Explosion-Proof Light for Shipping Industry through Stiffness and Strength Analysis

Abstract

Background/Objectives: Explosion-proof lighting products are extremely relevant and essential not only for offshore plants but also for special lighting systems in hazardous areas, i.e., power generation areas, steel industry, chemical complex, shipbuilding, and refinery. Normally, an accidental explosion may occur if the flammable gas that has been insufficiently ventilated in an enclosed period for a long period of time comes in contact with the high temperature surface of the bulb.

Methods/Statistical analysis: Thus, under the context of lighting, ensuring the safety of these areas requires excellent level of rigidity and strength of the surface of lighting components, especially the explosion-proof lighting devices. The present study discussed the designs of the base model and three modification models of explosion-proof devices and compared the analyses of their stiffness and strength yields.

Findings: As a result of the analysis, the design of Case 3 was changed from that of the basic model to make the steel construction system excellent in the stiffness value. In addition, due to its high strength, the design was changed to the Case 3 so that explosion-proof LED are safe even in case of accidents such as gas explosion. In this case, the maximum von Mises stress value was 1,086.2 MPa, which is about 30% lower than the existing 1,327.7 MPa

Improvements/Applications: The analytical results indicated that increasing the thickness of the ribs in the center of the core and designing a gentle curvature for the surface weaken the stress concentration, thereby enhancing the safety of these explosion-proof LED. 

Keywords: Computer Simulation; LED; Explosion-proof Devices; Stiffness; Strength; Shipping Industry