Investigation of Bending, Sound Absorption, and Damping Properties of AZ91D‐Swivel Plate

Abstract

A comparison was made between Mg alloy and A3 steel on weight, bending, sound absorption, and vibration conditions. In this study, a swivel plate, which is used in rotating car seats, is to be taken into consideration for finding bending, natural frequency, and frequency under static loading conditions. The swivel plate is generally made up of A3 steel plate; instead, we have replaced that with Mg alloy (AZ91D) plate. Stiffness, flexural strength, natural frequency, frequency under different static loading conditions, and sound absorption capacity were obtained through experimental methods. Finally, it was concluded that the damping capacity of Mg alloy of swivel plate is higher, has better stiffness, and incurred weight reduction by 26.58% less than that of the A3 steel. Also, the Mg alloy material exhibits better specific flexural strength, and specific flexural modulus and sound absorption coefficient are 11.76% and 25% higher than those of A3 steel at higher frequency level (2000 Hz) and at lower frequency level (100 Hz).

Current Trends in Metallic Materials for Body Panels and Structural Members Used in the Automotive Industry

“…AZ31B (Mg-3Al-1Zn) Inner panel (Cadillac STS) [374] AZ31B-H24 (Mg-3Al-1Zn) luggage retainer for Renault-Samsung SM7), roof panel (Porsche Carrera GT) [354] AZ61 (MgAl6Zn1) column beam, luggage rack skeleton [375] AZ91 (MgAl9Zn1) rear suspension, subframe members, clutch housing, transmission housing (Volvo LCP 2000) [376] AZ91 (MgAl9Zn1) rear subframe (Audi A8) [349] AZ91B (Mg-2.5Al-0.7Zn-0.2Mn) clutch Housing (Ford Ranger) [360] AZ91D (MgAl9Zn1(A)) inner panel (Ford F150) [377] AZ91D (MgAl9Zn1(A)) transmission housing [378] AZ91D (MgAl9Zn1(A)) steering column bracket [379] AZ91D (MgAl9Zn1(A)) clutch housing [380] AZ91D (MgAl9Zn1(A)) swivel plate [381] AZ91D (MgAl9Zn1(A)) central control bracket [382] AZ91D (MgAl9Zn1(A)) starter housing [383] AZ91D (MgAl9Zn1(A)) car dashboard member [363] AZ91D (MgAl9Zn1(A)) steering column (Ford Aerostar) [360] AZ91D (MgAl9Zn1(A)) truck gearbox housing (Volkswagen Passat, Audi A4 and A6) [384] cast magnesium alloy (*) cabin bracket (Audi A8) [349] cast magnesium alloy (*) roof frame, hardtop roof (Cadillac XLR) [349] cast magnesium alloy (*) steering wheel (Dongfeng Nissan) [349] cast magnesium alloy (*) tubular subframe (BMW 5-and 7-series) [385] cast magnesium alloy (*) intake manifold cover (Audi A8) [349] cast magnesium alloy (*) one-piece inner panel (Mercedes S-class) [386] cast magnesium alloy (*) liftgate inner (Mercedes E-Class T) [349] cast magnesium alloy (*) lift doors, side doors (Toyota Venza) [387] cast magnesium alloy (*) side door, inner panels (Aston Martin Vanquish S) [349] cast magnesium alloy (*) rear back doors (Jeep Wrangler) [349] cast magnesium alloy bezel-less doors (Volkswagen) [388] magnesium alloys (*) cross car beams (BMW X3, BMW X5, BMW X6, Chrysler Pacifica, Honda Ridgeline, Honda Acura MDX, Jaguar F-type, Jaguar XF, Jeep Grand Cherokee, Jeep Wrangler, Land Rover Discovery, Range Rover Evoque) [389] magnesium alloys (*) lift gate inner (Chrysler Pacifica, Lincoln MKT), front deck (Dodge Viper, Mercedes AMG)...…”