Thermal and Stress Analysis of a Drum Brake

Thermal and stress analysis of a drum brake by using alloy different materials

Abstract

The Drum brake is a contraption for directing or stopping the rotate of a wheel. A brake Drum (or rotor), by and large made of cast iron or imaginative composites (checking carbon, Kevlar and silica), is related with the deal/the rotate.

To stop the wheel, contact material as brake pads (mounted on a contraption called a brake caliper) is obliged absolutely, utilizing pressurized water, pneumatically or electromagnetically against the different sides of the Drum.

Disintegration makes the Drum and annexed wheel moderate or stop.

Brakes convert granulating to warm, anyway if the brakes get excessively hot, they will stop to work since they can't scatter enough warmth. This condition of disillusionment is known as brake obscure. Drum brakes are exhibited to enormous warm stresses during routine braking and excellent warm stresses during hard braking.

The purpose of the endeavor is to show a drum brake used in AUDI A100.

Get quality help now
Bella Hamilton
Bella Hamilton
checked Verified writer

Proficient in: Mechanical Engineering

star star star star 5 (234)

“ Very organized ,I enjoyed and Loved every bit of our professional interaction ”

avatar avatar avatar
+84 relevant experts are online
Hire writer

Essential and Thermal is done on the Drum brake. The materials used are Gray Cast Iron, Aluminum Alloy and Metal Matrix composite (MMC-SiC). Examination is moreover done by changing the structure of Drum brake. real Drum brake has no holes; plan is changed by giving holes in the Drum brake for more warmth dispersing. Showing is done in CREO/PRO-E parametric programming and examination is done in

ANSYS.Keywords: CAD, CREO,CFD AND FEM,

Introduction

A brake is a mechanical contraption that stifles development by charming imperativeness from a moving structure.

Get to Know The Price Estimate For Your Paper
Topic
Number of pages
Email Invalid email

By clicking “Check Writers’ Offers”, you agree to our terms of service and privacy policy. We’ll occasionally send you promo and account related email

"You must agree to out terms of services and privacy policy"
Write my paper

You won’t be charged yet!

It is used for directing or ending a moving vehicle, wheel, rotate, or to maintain a strategic distance from its development, much of the time accomplished by strategies for granulating. Brakes are generally associated with turning axles or wheels, anyway may moreover take various structures, for instance, the outside of a moving fluid

A couple of vehicles use a mix of braking segments, for instance, hustling automobiles with both wheel brakes and a parachute, or planes with both wheel brakes and drag folds raised into the air during landing.

Types of brakes

  • Electromagnetic Brake System
  • Frictional Brake System
  • Hydraulic Brake System
  • Pumping Brake System
  • Servo Brake System
  • Parking and Emergency Braking Systems

Principle of braking system:

While operating the braking system the kinetic energy of moving vehicle is converted in to heat energy.

Functions of brakes:

Brakes have the following functions.

  • 1.it is utilized to stop the vehicle.
  • 2.it is utilized to control the speed where and when required.
  • 3.it is utilized to control the vehicle while plummeting along the incline.

Drum brake

A drum brake is a brake that utilizations contact brought about by a lot of shoes or cushions that press outward against a pivoting chamber formed part called a brake drum.

The term drum brake generally suggests a brake where shoes push on the internal surface of the drum. Right when shoes push ostensibly of the drum, it is by and large called a secure brake.

Where the drum is crushed between two shoes, similar to a standard plate brake, it is sometimes called a press drum brake, anyway such brakes are commonly phenomenal. A related kind called a band brake uses a versatile belt or "band" collapsing over the outside of a drum.

Advantages:

  • Less costly to deliver
  • Slightly lower recurrence of support because of better erosion opposition contrasted with plates.
  • Built-in self empowering impact requires less info power, (for example, water driven weight).
  • Wheel chambers are to some degree more straightforward to recondition contrasted with calipers.
  • Minor weight reserve funds, fundamentally from a lot littler and lighter pressure driven chambers versus calipers.

Disadvantages:

·At the point when the drums are warmed by hard braking, the separation crosswise over of the drum augments fairly due to warm expansion, so the shoes must move progressively inaccessible and the driver must press the brake pedal increasingly remote.

·The properties of the disintegration material can change at whatever point warmed, realizing less scouring. This can be a much greater issue with drum brakes than plate brakes, since the shoes are inside the drum and not exhibited to cooling including air.

The loss of contact is commonly simply short and the material recovers its capability when cooled, yet in case the surface overheats to the point where it ends up covered the reduction in braking viability is dynamically unchanging. Surface covering can be disintegrated with further use of the brakes, yet that requires some genuine vitality.

Literature survey

Zaidi Mohd Ripin This paper depict the drum brake screech is displayed as erosion energized vibration dependent on the paired ripple instrument which requires the union of two modes tentatively distinguished utilizing Modal Assurance Criterion.

Transient investigation is completed to decide the brake drum reaction under braking condition and the model produces screech mode at 2026 Hz equivalent to the deliberate screech recurrence of 1950 Hz. There are restricted blends of the area of focal point of weight of the shoes that reason screech.

The plentifulness of the point of confinement cycle of the drum brake screech can be diminished by expanding damping, mode recurrence partition and lessening the contact solidness.

This paper portray that the drum brake utilizes the idea of rubbing to decelerate. During the brake task warmth is launched out this makes harm the brake. In this condition the drum material ought to have a high warm conductivity, warm limit and high quality.

A warm examination of various materials, for example, aluminum combination, cast iron and hardened steel 304 for a brake drum will be finished.

Relentless state conditions are considered. Transient state investigation, for standard 30 seconds, 90, 120 and 210, temperature dissemination and warm transition is considered. An examination of all the three outcomes is done and aluminum composite material is demonstrated superior to different materials.

Objectives of project

  • The objectives of the project are as follows
  • To create auxiliary displaying of Drum Brake.
  • To perform limited component investigation of Drum Brake.
  • Suitable material examination.
  • Study of burden and Thermal elements.
  • Study of stress, strain twisting, temperature and warmth motion actuated in the Drum Brake.

Introduction to cad

PC helped structure (CAD) is the utilization of PC frameworks (or workstations) to help in the creation, change, investigation, or advancement of a plan.

Computer aided design programming is utilized to expand the efficiency of the originator, improve the nature of configuration, improve correspondences through documentation, and to make a database for assembling.

Computer aided design yield is regularly as electronic records for print, machining, or other assembling tasks. The term CADD (for Computer Aided Design and Drafting) is likewise utilized.

Introduction to creo

CREO, when known as Pro/ENGINEER, is 3D showing programming used in mechanical structure, plan, manufacturing, and in CAD drafting organization firms.

It was one of the primary 3D CAD exhibiting applications that used a standard based parametric system. Using parameters, estimations and features to get the direct of the thing, it can improve the progression thing similarly as the structure itself.

Model specifications

  • 2D MODEL
  • 3D MODEL

Introduction to finite element method

FEM/FEA helps in assessing confounded structures in a framework during the arranging stage. The quality and plan of the model can be improved with the assistance of PCs and FEA which legitimizes the expense of the investigation. FEA has noticeably expanded the plan of the structures that were constructed numerous years back.

Results and discussion

Static analysis of drum brake

Material properties

Aluminium alloy

  • Young's modulus= 71000mpa
  • Poisson's ratio=0.33
  • Density = 7850 kg/m3

Geometric model

Meshed model

Boundary conditions

  • Deformation
  • Stress
  • Strain

Static analysis of drum brake

  • Material properties
  • Aluminium alloy
  • Thermal conductivity= 144w/m 0c
  • Sic mmc
  • Thermal conductivity= 150w/m 0c
  • Grey cast iron
  • Thermal conductivity= 52 W/m0C

Conclusion

  • ·Modeling and examination of drum brakes is finished.
  • ·Modeling of drum brake is done in CREO plan programming.
  • ·Thus document is spared as IGES to bring into ANSYS workbench Structural and warm investigation is continued drum brake in ANSYS workbench First auxiliary examination of weight of 1.5Mpa is connected with three distinct materials, for example, Gray cast iron, Metal Matrix Composite (SiC), Aluminum compound.
  • ·Maximum stress, distortion, strain, Temperature and Heat transition are found and arranged.
  • ·Next enduring state warm investigation of drum brake with three unique materials Gray cast iron, Metal Matrix Composite (SiC), Aluminum compound, at 90 0C temperature and 22 0C surrounding temperature of convection is connected Temperature circulation and all out warmth transition are acquired and organized.
  • ·Thus the pressure, strain, shear pressure and absolute distortions esteems are acquired and arranged.

Reference

  • [1]. Anup Kumar and R. saharish. Structural and Warm Analysis of Brake Drum. Middle East Journal of Scientific Research Vol20. (8). IDOSI Publication. Pp 1012-1016. . 2014.
  • [2]. Brake Drum. Available at en.wikipedia.org/wiki/Drum brake. Cited March 2015.
  • [3]. Frank Kreith. Mechanical Engineering Handle Book. Boca Raton: CRC Press LLC. Pp 4-7. 1999.
  • [4]. Daniel Dannelley, John Baker, Clark K. Midkeff, Robert P. Taylor, Keith A. Woodburry. Enhancement of Extended Surface Heat Transfer Using Fractal-like Geometry. Department of mechanical Engineering, Graduate School of the University of Alabama. Pp 14-15. 2013.
  • [5]. Fred Puhn. Brake Handbook. 2rd edition.HP Books Pp4, 15-21. 1985.
  • [6]. Giri N.K. Automobile Technology. Sixth edition (reprint).Khanna Publisher. Pp 1269-1272.2012.
  • [7]. James Carvill. Mechanical Engineer's Data Handbook. First Edition. Butterworth Heinemann Publication.Pp129-131.1993.
  • [8]. Karim Nice. How Drum Brakes Works. Available at www.howstuffworks.com/autoparts/brake/brake-types/drum-brake 1.htm. cited March 2015[9]. Kicreyco Brake Drum Catalog. Kic Holding Inc Pp 1-12. Available at www.kic-group.com.Cited April 2015.
Updated: May 19, 2021
Cite this page

Thermal and Stress Analysis of a Drum Brake. (2019, Nov 26). Retrieved from https://studymoose.com/jaya-paper-rewritted-example-essay

Thermal and Stress Analysis of a Drum Brake essay
Live chat  with support 24/7

👋 Hi! I’m your smart assistant Amy!

Don’t know where to start? Type your requirements and I’ll connect you to an academic expert within 3 minutes.

get help with your assignment