200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 FREQUENCY Hz 1900 2100 2300 Rotation speed (rpm) Sandwich panel with a 25mm wooden-based core Sandwich panel with a 25mm wooden-based core and a 900g/m” viscoelastic damping sheet Sandwich panel containig 25mm of nidaplast Nidaplast honeycombs have a capacity of absorption higher than wood. Even if the wood would be strengthened by a viscoelastic damping sheet, nidaplast remains the best choice in terms of acoustic performances.This reduces the sound level generated by the vibrations of the engine and the movements, which are propagated throughout the structure. 0 0,2 0,4 0,6 0,8 1 1,2 RMS 1,4 Level of vibration (RMS) on the partitions of a power boat depending on the function of the rotation speeds of the engine. Thanks to its 25 years of experience, nidaplast composites can help you to pre-size your composite panels Nidakits. Our engineers will help you to produce the right structures using analytical or digital methods. Nidaplast composites has a highperformance laboratory in order to make mechanical tests on its products. Our team will help you with your choice of materials and will work with you to check the mechanical resistances. This laboratory is constantly carrying out quality control for nidaplast products in accordance with the company’s ISO 9000 and ISO 14001 certication. plaquette NAUTISME C5.indd 1-2 N NIDAPLAST - Rue Paul Vaillant Couturier - F - 59224 THIANT - France - Tél.: +33 (0)3 27 44 72 00 - Fax.: +33 (0)3 27 44 88 05 [email protected] - www.nidaplast.com - S.A.S. au capital de 1 061 998 € - R.C. VALENCIENNES 971 204 474 - NAF : 2223 Z c The information contained herein may be used as a guide for the use of the product but must not be considered as a guarantee for correct installation. Furthermore, the application, use and / or processing of the products are beyond our control, and consequently the installer and / or user and /or the processor shall be fully responsible for this work. Our engineers are highly experienced in using nidaplast products in traditional industrial techniques: hand lay-up, spray-up, RTM, infusion… They will work closely with your design and production teams for manufacturing the rst prototypes in order to optimise your production costs and thus adapt our products to your requirement. Nidaplast team remains at your disposal to respond to your needs and to address any technical question you may have: NIDAPLAST SERVICES The damping loss factor of nidaplasts®8 is substantially higher than other traditional materials. The viscoelastic character of the polypropylene used in our honeycombs structure makes nidaplast the right material for absorbing the vibrations from your boat. It helps reducing vibrations and contributes to acoustic comfort of the whole structure. 0,001 0,01 Nidaplast 8.65 PVC 55kg Extruded PS 40kg Balsa 100kg Plywood 25 mm core material / 3mm plywood skin PU glued. Damping loss factor ( ) NIDAPLAST WINNING ASSET : ACOUSTIC ABSORPTION Conception et réalisation : Évolution - 32 (0)69 250 500 0 6 /2 0 1 1 YACH TI N G. UK EASY SHAPING SHOCK ABSORBER LIGHT & RESILIENT ROTPROOF COST EFFECTIVE RMAL RMAL THERMAL INSULATOR ACOUSTIC ABSORBER BOAT BUILDING The honeycombs core for lighter structures 17/06/11 14:07

plaquette NAUTISME C5.indd 3-4 Applications of nidaplast products : • Bridges and superstructures • Cockpit bottoms • Hull / ooring reinforcements • Washrooms • Hooding • Floors • Partitions • Roofs • Interior layout and furnishing THE NIDAPLAST HONEYCOMBS APPLIED TO BOAT BUILDING Depending on the use and the constraints applied to the nished panel, several nishings are possible : association of honeycombs core with polyester , aluminium or wooden skins. It is also possible to put local reinforcements or inserts before the stratication of the panel for afxing parts to it. From design to delivery,...