classic | mobile
 

Search...

 

Supersonic engineering
4th Quarter 2011, Hydraulic systems & components


The record attempt will take place in 2012 and Hakskeen Pan in the Northern Cape has been chosen as the venue because it has the ideal qualities.

Bloodhound is the brainchild of Richard Noble, who achieved fame in 1997 with the Thrust Supersonic Car (SSC), when Wing Commander Andy Green broke the world landspeed record for a wheeled vehicle by clocking 1220 kph at Mach 1.0.

Powered by a Eurojet EJ200 jet engine and a huge Falcon hybrid rocket, the Bloodhound SSC will develop over 130 000 horsepower, roughly the same power as 180 F1 cars, and will cover 16 km in 100 seconds from a standing start, with a 0 to 1600 kph time of just 42 seconds. At top speed that is four and a half football pitches in one second.

Parker Hannifin is working with the Bloodhound team to develop precision hydraulic systems for the control of the car’s air braking and aerodynamic trim systems. The company will also supply equipment for the development and test phases of the project and for ground support during the timed runs.

Hydraulic systems will play a crucial role in controlling the air brakes and aerodynamic trim. The air brakes will operate in conjunction with drag parachutes and will slow the vehicle, which weighs over 5 tons, from 1600 kph at Mach 1.4 to standstill, over a maximum distance of 7,2 km. Aircraft style disc brakes will be used below 400 kph.

The challenge for designers is far from straightforward as airbrake and parachute systems rely on aerodynamic drag, which changes with speed. Aerodynamic drag is proportional to the square of the speed, so when the speed is doubled the drag is quadrupled. The drag from the airbrake deployed at 1600 kph is four times higher than that at 800 kph, in turn four times higher than the drag at 400 kph. So an airbrake that works well at 1200 kph is ineffective at lower speeds. To control the rate of deceleration, a parachute will be deployed at around 960 kph. This will add a drag load of up to 6 tons to the car, increasing the rate of deceleration by a further 1 g, or an extra 320 kph every second.

It is also crucial to maintain stability during acceleration and deceleration. Again, this is far from straightforward. The aerodynamics and pitch moment change with speed and these forces control the loads on each wheel, influencing their ability to generate lateral forces as each wheel comes into contact with the ground. Each wheel rotates at around 10 000 rpm, generating 50 000 g at the rim, with the aerodynamic forces being controlled by the use of programmable, hydraulically controlled winglets.

The technical challenges for the Bloodhound SSC are immense, both for the vehicle as a whole and for the individual motion and control systems. Yet the main aim of the project is education – to inspire the next generation of engineers with the sheer excitement of science and engineering by sharing the highs and lows of building and running the world’s fastest car.

For Richard Noble and the Bloodhound team the ability to partner with companies such as Parker Hannifin, and to share design, engineering and product skills and knowledge with acknowledged industry experts is an essential factor in this exciting record breaking attempt.

For more information contact Jolanda Bouwer, Parker Hannifin, +27 (0)11 961 0700, jbouwer@parker.com, www.parker.com/za


Credit(s)
Supplied By: Parker Hannifin (Africa)
Tel: +27 11 961 0700
Fax: +27 11 392 7213
Email: parker.southafrica@parker.com
www: www.parker.com/za / www.pha.edx.co.za
Share via email     Print this page  

Further reading:

  • Thirty years of innovation
    3rd Quarter 2017, The Hydraulic Centre, Hydraulic systems & components
    With the introduction of the third tier Dynamische range of hydraulic products, THC can also offer reasonably priced products with exceptional quality and performance – the best value in the industry. ...
  • Parker secures Fit For Nuclear platform
    3rd Quarter 2017, Parker Hannifin (Africa), News & events
    Parker Hannifin has joined a select group of companies that have successfully achieved ‘ready to supply’ status through the Fit For Nuclear (F4N) programme. F4N is designed to assist UK manufacturing ...
  • New range of filter cartridges
    3rd Quarter 2017, Parker Hannifin (Africa), Other technologies
    The new range of Bevpor BR filter cartridges from Parker Domnick Hunter allows brewers to reduce the cost of microbial stabilisation significantly, whilst protecting the sensory appeal of beer. Constructed ...
  • High-performance mechanical flange system
    3rd Quarter 2017, Parker Hannifin (Africa), Hydraulic systems & components
    Parker Hannifin has launched the Parker HPF high-performance mechanical flange system for machines and installations with a working pressure up to 420 bar. This meets the increasing requirements of the ...
  • Valves for every eventuality
    3rd Quarter 2017, Bearing Man Group t/a BMG, Hydraulic systems & components
    BMG’s extensive range of components for fluid technology systems encompasses valves, hydraulic hoses and fittings, accumulators, cylinders, heat exchangers, pneumatics, hydraulic motors and hydraulic ...
  • Rotary unions for every need
    3rd Quarter 2017, Stone-Stamcor, Hydraulic systems & components
    Rotoflux supplies a range of rotary unions suited to any industry need. They can operate at speeds up to 20 000 rpm, pressures up to 400 bar and temperatures up to 340°C. The high speed range is available ...
  • Hyflo distributes Parker hose and fittings
    3rd Quarter 2017, Hyflo Southern Africa, Hydraulic systems & components
    Hyflo is now a distributor of high quality Parker hydraulic hose and fittings, which are available at all Hyflo branches in South Africa and Namibia. The core ranges include the 301TC (2SN), 421TC (1SN), ...
  • At the heart of regenerative braking
    3rd Quarter 2017, Axiom Hydraulics, Hydraulic systems & components
    Lightning Systems is an innovative, forward thinking company that saw an opportunity a few years back to bring hydraulic hybrid technology to medium- and heavy-duty fleet vehicles like shuttle buses, ...
  • A new chapter for hydraulics
    2nd Quarter 2017, This Week's Editor's Pick, Hydraulic systems & components
    A new groundbreaking technology could change the face of hydraulics – digital displacement technology (DDT).
  • Freaky hydraulics
    2nd Quarter 2017, This Week's Editor's Pick, Hydraulic systems & components
    There is some great technology that can be developed by mimicking spiders.
  • Don’t play a game of chance
    2nd Quarter 2017, Axiom Hydraulics, Hydraulic systems & components
    Choosing the right load-holding valve shouldn’t be a game of chance and it shouldn’t be a project that takes hours. Now with Sun’s QuickSelect LoadHolding selection tool, you can narrow your options from ...
  • A guide for testing control valve positioners
    2nd Quarter 2017, Comtest, Hydraulic systems & components
    Valves, the actuators that move them and the electronic circuits that control them, are all subject to ageing soon after they are installed. Valve seats wear from repeated seatings and from the liquid ...

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronic Buyers Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual





 

         
    classic | mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.