scholarly journals Pengaruh bahan kampas rem terhadap respon getaran pada sistem rem cakram

2017 ◽  
Vol 12 (1) ◽  
pp. 1
Author(s):  
Muhammad Mushlih Elhafid ◽  
Didik Djoko Susilo ◽  
Purwadi Joko Widodo
Keyword(s):  
Damping Ratio ◽  
Pressure Variation ◽  
Vibration Response ◽  
Brake System ◽  
Disc Brake ◽  
Brake Pad ◽  
Brake Pads ◽  
Braking System ◽  
Analysis Experiment ◽  
Disc Rotation

This study aims to determine the effect of brake pads material to the vibration response of disc brake system on many variety of braking conditions. The variations of brake pads material on this research such as metallic, non-asbes and ceramic. The variations of braking operation such as speed of disc rotation and braking pressure. Each brake pads material tested by variation of disc rotation 425, 637, 850, 1062 rpm and pressure variation 0,5 bar, 1 bar, 1,5 bar. Furthermore, the dynamic characteristics of brake pad had been tested by using the method of Modal Analysis Experiment. The results showed that the type of brake pad materials, disc rotation and braking pressure affect to vibration response of disc brake system. Increasing speed of disc rotation and braking pressure will increase the excitation force causing value amplitude of vibration in the braking system increases. Usage of brake pad ceramic also showed the lowest amplitude of vibration for all variations of disc rotation and braking pressure. Because the ceramic brake pad have the lowest natural frequency, then the value of the damping ratio is high, so that decreasing amplitude of vibration that occurs in the braking system.

No Breaks for Noise

1999 ◽  
Vol 121 (08) ◽  
pp. 62-63 ◽  
Author(s):  
Paul Sharke
Keyword(s):  
Brake System ◽  
Disc Brake ◽  
Brake Pedal ◽  
Passenger Compartment ◽  
Engine Noise ◽  
Master Cylinder ◽  
Noise And Vibration ◽  
Brake Pads ◽  
Mechanical Components ◽  
To Come

This article highlights the fact that engineers who design and test anti-lock brake systems (ABS) have been trying to come up with ways to minimize the noise and vibration that drivers hear and feel when they stomp on the brake pedals. The ABS engineers want drivers to do during a panic stop is to let their feet off the brakes. According to the engineers, braking should be the concern, because the less time the driver worries about stopping the car, the more time there is to concentrate on steering it. The mechanical components in both systems are functionally identical, consisting of a brake pedal, a master cylinder and booster, hydraulic lines and fluid, wheel calipers, brake pads, and rotors. In fact, unless the system is actuated by hard braking, ABS acts just like an ordinary disc brake system. Engine noise would only mask the ABS noise reaching the binaural head, which sits inside the passenger compartment where a driver would normally be.

The effect of boron on the performance of automotive brake

2013 ◽  
Vol 10 (6) ◽  
pp. 523-528 ◽  
Author(s):  
A. Muzathik ◽  
Y. Nizam ◽  
M. Ahmad ◽  
W. Nik
Keyword(s):  
Surface Roughness ◽  
Friction Coefficient ◽  
Friction Material ◽  
Brake System ◽  
Brake Pad ◽  
Brake Pads ◽  
Brake Performance ◽  
Single Material ◽  
Automotive Brake

Friction material in an automotive brake system plays an important role for effective and safe brake performance. A single material has never been sufficient to solve performance related issues. Current research aimed to examine properties of Boron mixed brake pads by comparing them with the commercial brake pads. Friction coefficient of Boron mixed brake pads and commercial brake pads were significantly different and increased with the increase in surface roughness. The abrupt reduction of friction coefficient is more significant in commercial brake pad samples than in Boron mixed brake pad formulations. Fade occurred in commercial brake pad sample at lower temperatures. Boron formulations are more stable than their commercial counterparts.

scholarly journals Innovative braking system for high-speed 80-foot platform

2021 ◽  
Vol 80 (6) ◽  
pp. 343-350
Author(s):  
V. A. Nikonov ◽  
V. F. Zubkov ◽  
M. N. Tsibizov ◽  
I. V. Nazarov ◽  
D. V. Gorskiy
Keyword(s):  
High Speed ◽  
Pressure Sensors ◽  
Brake System ◽  
Modern Concept ◽  
Automatic Regulation ◽  
Brake Pads ◽  
Braking System ◽  
Digitally Controlled ◽  
The Creation ◽  
Technical Solutions

The article discusses technical solutions for the creation of an effective design of a brake system for high-speed longwheelbase platforms intended for the transport of containers, as well as for the development of a fundamentally new brake equipment for the pneumatic, electro-pneumatic and mechanical parts of the brake system. Modular braking equipment for the pneumatic and electro-pneumatic parts of the high-speed platform braking system, compactly located under the platform frame, provides technical compatibility when controlling platform brakes as part of not only a high-speed freight train of permanent formation, but also in trains for other purposes, regardless of the location of the platform in the composition of the train. The performance of the braking equipment of each platform in motion and in the parking lot is monitored using pressure sensors and an electronic unit that processes the readings of the sensors and transmits information to the locomotive via one of the wire lines of the electro-pneumatic brake. The brake rigging used on the high-speed platform is arranged in the design of three-axle bogies and provides doublesided pressing on the wheels with typical composite brake pads, automatic regulation and maintenance of the standard clearances between brake pads and wheels. The proposed promising technical solutions make it possible to continuously diagnose the parameters of the brakes of each platform as part of a permanent train, display them on the locomotive monitor and transmit them to the dispatch centers of the Russian Railways infrastructure. Thanks to this, the braking effciency can be increased and the safety of train traffc can be ensured while increasing the permissible travel speeds. In the modern concept of digitalization of the infrastructure of Russian Railways, which provides for the creation in 2021–2025 (and in the future until 2030) of cars in which intelligent technologies should be applied, the braking system of a high-speed platform can be considered as the basis for creating a digitally controlled train — one of the key elements of the digital railway.

Comparative study of different solid lubricants towards friction stability in a non-asbestos disc brake pad

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Baskara Sethupathi P. ◽  
Chandradass J.
Keyword(s):  
Wear Resistance ◽  
Testing Machine ◽  
Synergetic Effect ◽  
Solid Lubricants ◽  
Metal Sulfides ◽  
Disc Brake ◽  
Mechanical And Thermal Properties ◽  
Brake Pad ◽  
Content Type ◽  
Brake Pads

Purpose This study aims to compare the influence of different solid lubricants on the friction stability of a non-asbestos disc brake pad. Design/methodology/approach Three brake pads were developed using three lubricants, namely, non-asbestos brake pad with sulfide mix (NASM), non-asbestos brake pad with bismuth sulfide (NABS) and non-asbestos brake pad with molybdenum disulfide (NAMO). Sulfide mix was indigenously developed by physically mixing friction modifiers, alkaline earth chemicals and various metallic sulfides homogeneously dispersed in graphite medium. The physical, chemical, mechanical and thermal properties of brake pads were characterized as per industrial standards. The tribological performances were studied using the Chase testing machine as SAE-J661-2012. The worn surface of the pads was studied using scanning electron microscope to analyze the dominating wear mechanism. Findings NASM was excellent in fade as well as wear resistance. NABS was better from a wear point of view, but fade resistance was moderate despite its higher cost. NAMO fared average in fade and wear despite its excellent dry lubricating properties. NASM was excellent in terms of fade as well as wear resistance. Originality/value Among the selected metal sulfides, the indigenously developed sulfide mix was better than the other two sulfides, which indicates that the synergetic effect of metal sulfides was always preferable to the individual sulfides.

A Study on Mechanical and Tribological Behavior of Brake Pad Materials

2017 ◽  
Vol 737 ◽  
pp. 162-167 ◽  
Author(s):  
Sanjeet Kumar ◽  
Deepak Kumar ◽  
Jayant Jain
Keyword(s):  
Friction And Wear ◽  
Tribological Behavior ◽  
Brake Pad ◽  
Rotating Disc ◽  
Friction Behavior ◽  
Materials Properties ◽  
Brake Pads ◽  
Braking System ◽  
Wear And Friction ◽  
Wear Response

Controlled friction and wear are the prime requirements of a braking system. The generation of wear debris depends on the brake materials properties, which in turn controls the tribological behavior. Present study deals with the performance evaluation and failure analysis of two commercial brake pads. Tribo Testing Rig (TTR) was used to evaluate the performance of brake. The tests were performed by making a tribo-pair of brake pad against the rotating disc with varying speed and pressure conditions. The wear response was quantified by mass loss, while the friction was measured in terms of coefficient of friction. Virgin and worn surfaces were analyzed using X-ray diffractometer (XRD), energy dispersive spectroscopy (EDAX) and Scanning electron microscope (SEM) to understand the wear and friction mechanisms. It was found that the type of constituents present in the brake-pad material and their spatial distribution plays an important role in controlling the wear and friction behavior. The high wear and friction was attributed to the presence of bulky particles of Fe and Si.

Tribo-Thermal Based Evaluation of Non Asbestos Disc Brake Pad Formulation

2015 ◽  
Vol 766-767 ◽  
pp. 432-437
Author(s):  
V. Thiyagarajan ◽  
R. Vijay ◽  
K. Sivakumar ◽  
R.l. Harigovindhan
Keyword(s):  
Thermal Stability ◽  
Thermo Gravimetric Analysis ◽  
Disc Brake ◽  
Gravimetric Analysis ◽  
Brake Pad ◽  
Thermo Gravimetric ◽  
Metallic Material ◽  
Brake Pads ◽  
Structural Reinforcement ◽  
Alumina Fibre

Performance of Non Asbestos brake pad requires the optimization of numerous criteria. Alumina fibre is a metallic material which is light weight, excellent wear resistance, thermal stability and structural reinforcement properties. Hence the present work deals with the development of three friction composites in the form of standard disc brake pads using same ingredients in same proportion except alumina fiber containing 7%wt, 11%wt & 14% wt which is compensated by synthetic barites (filler) containing 16%wt, 12%wt & 9% wt and designated as NA01, NA02 and NA03 respectively. Various physical, thermal and mechanical characterizations are carried out as per IS2742 Part 3 standards in which the loss of ignition decreased while the specific gravity, compressive strength and hardness increased with the fiber increase. Then the tribological properties (Fade and Recovery) are tested using Chase Test following IS2742 Part 4 standards. The fade μ and recovery μ % were significantly influenced by the amount of fibre combinations. It was proved that, increase in amount of alumina fibre % had significant effect on fade μ %.Thermo Gravimetric Analysis (TGA) proves that higher fiber content has more thermal stability leading to good fade resistance. Over all NA03 formulation is proved as superlative performer.

scholarly journals Thermal Analysis of Disc Brake System

2021 ◽  
Vol 9 (8) ◽  
pp. 1819-1826
Author(s):  
Srushti Newase
Keyword(s):  
Thermal Analysis ◽  
Thermal Stresses ◽  
Disc Brake ◽  
Surface Cracking ◽  
Brake Pads ◽  
Braking System ◽  
Brake Rotor ◽  
Braking Process ◽  
The Right ◽  
Safety Systems

Abstract: Brakes are one of the most significant safety systems in an automobile. In the braking process, the rotor will be exposed to large stresses which result in surface cracking, overheating of brake fluid, seals and other components. Therefore one of the main tasks of the braking system is to reduce the surface temperature of the brake rotor. This can be achieved by choosing the right material which will undergo the least thermal stresses. In this project, thermal analysis for vented disc brake rotor of Mahindra Bolero’s done, for providing an efficient material for disc brake rotor and brake pads which can dissipate heat generated during braking at faster rate and also being structurally safe. Keywords: Braking system, Disc Brake Rotor, Thermal, Structural Analysis, CATIA V5, ANSYS WORKBENCH

scholarly journals Analysis and Optimisation of Disc Brake System for Two-Wheeler Applications

2019 ◽  
Vol 9 (2S2) ◽  
pp. 1079-1083
Keyword(s):  
Stress Conditions ◽  
Brake System ◽  
Disc Brake ◽  
Ansys Software ◽  
Braking System ◽  
Moving Body ◽  
Different Types ◽  
Final Design ◽  
Two Wheeler

Braking system is used for restraining the motion by absorbing energy from a moving body. The conventional braking system works on the principle of friction. Among the different types of brakes, disc brake is one of the most widely used braking systems. Estimation of efficiency of this class of brakes without manufacturing of prototype is very difficult. This paper focusses on analysis and optimization of disc brake using ANSYS software. The base modelling of the disc brake system will be carried out using SOLIDWORKS and the model will be imported to ANSYS. The analysis is aiming at optimizing the deformation and stress conditions. The final design is aiming at controlling the deformation and stresses of the disc by providing the best material to be used for the certain design. The basic brake system used for the analysis was Bajaj Pulsar 150 motor cycles.

scholarly journals Thermal Analysis of a Disc

2021 ◽  
Vol 9 (10) ◽  
pp. 1910-1915
Author(s):  
Ratnajeet Wadile
Keyword(s):  
Thermal Analysis ◽  
Temperature Rise ◽  
Permissible Limit ◽  
Disc Brake ◽  
Brake Pads ◽  
Braking System ◽  
Analysis Tools ◽  
Disc Brakes ◽  
Ansys Workbench ◽  
Disk Brakes

Abstract: The disk brakes are special mechanized parts in a vehicle attached with the tires to help reduce the velocity of the vehicle. As the brake pads caused friction with the disc brakes, there is a temperature rise. Due to this there are great chances of disc brake’s failure if temperature rises above some permissible limit. Solidworks and ANSYS are the design and analysis tools which are used to accomplish this project. The disc brake was designed using Solidworks and it was analysed in ANSYS workbench. The main aim of this project is to analyse two-disc brakes manufactured with different materials to compare their properties and select one with most benefits. Keywords: ANSYS, FEA, Disc brake, Thermal analysis, braking system, Radiation.

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