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H11
Centre of Pressure
Apparatus
© TQ Education and Training Ltd 2000
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording or any information storage and retrieval system without the express permission of TQ > Education and
Training Limited.
All due care has been taken to ensure that the contents of this manual are accurate and up to date. However, if any errors >are discovered please inform TQ so the problem may be rectified.
A Packing Contents List is supplied with the equipment. Carefully check the contents of the package(s) against the list. If any items are missing or damaged, contact your local TQ agent or TQ immediately. SECTION 1.0 INTRODUCTION
Figure 1 H11 Apparatus
The TQ H11 Centre of Pressure Apparatus permits the moment due to the fluid thrust on a wholly or partially submerged plane surface to be measured directly and compared with theoretical analysis. Provision is made for varying the inclination of the plane surface subjected to the fluid pressure so that the general case may be studied.
1.1 Description of Apparatus
Water is contained in a quadrant of a semi-circular Perspex tank assembly which is allowed to swing on a smooth bar.
The cylindrical sides of the quadrant have their axes coincident with the centre of rotation of the tank assembly, and therefore the total fluid pressure acting on these surfaces exerts no moment about that centre. The only moment present is that due to the fluid pressure acting on the plane surface. This moment is measured experimentally by applying weights to a weight hanger mounted on the opposite side to the quadrant tank.
A second tank, situated on the same side of the assembly as the weight hanger, provides a trimming facility and enables different angles of balance to be achieved.
The angular position of the plane and the height of water above it are measured
Centre of Pressure
Apparatus
© TQ Education and Training Ltd 2000
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording or any information storage and retrieval system without the express permission of TQ > Education and
Training Limited.
All due care has been taken to ensure that the contents of this manual are accurate and up to date. However, if any errors >are discovered please inform TQ so the problem may be rectified.
A Packing Contents List is supplied with the equipment. Carefully check the contents of the package(s) against the list. If any items are missing or damaged, contact your local TQ agent or TQ immediately. SECTION 1.0 INTRODUCTION
Figure 1 H11 Apparatus
The TQ H11 Centre of Pressure Apparatus permits the moment due to the fluid thrust on a wholly or partially submerged plane surface to be measured directly and compared with theoretical analysis. Provision is made for varying the inclination of the plane surface subjected to the fluid pressure so that the general case may be studied.
1.1 Description of Apparatus
Water is contained in a quadrant of a semi-circular Perspex tank assembly which is allowed to swing on a smooth bar.
The cylindrical sides of the quadrant have their axes coincident with the centre of rotation of the tank assembly, and therefore the total fluid pressure acting on these surfaces exerts no moment about that centre. The only moment present is that due to the fluid pressure acting on the plane surface. This moment is measured experimentally by applying weights to a weight hanger mounted on the opposite side to the quadrant tank.
A second tank, situated on the same side of the assembly as the weight hanger, provides a trimming facility and enables different angles of balance to be achieved.
The angular position of the plane and the height of water above it are measured