vibration test system Articles

  • Vibration testing of fuel probes

    Aerial Refuelling The American Bell-Boeing V-22 Osprey is a multimission, military, tilt rotor aircraft with both a vertical and short takeoff and landing capability. It combines the functionality of a conventional helicopter with the high-speed cruise performance of a long-range turboprop aircraft. But even though it is long-range, some missions require in-flight refuelling. The V-22 Osprey can ...

  • Vibration testing of a carbon composite fuselage

    This paper describes the details of an experimental investigation focusing on the vibration characteristics of a composite fuselage structure of an ultralight unmanned aerial vehicle (UAV). The UAV has a total empty weight of 70.3 kg and 6.3 m in length. The fuselage structure consists of the fuselage body with an integrated vertical stabiliser. All structural components are fabricated from ...


    By Inderscience Publishers

  • Ensuring satellite reliability with vibration testing

    They offer space test and ground-based facilities where they design and build instruments, and analyse and process data. They also operate ground-station facilities, and lead conceptual studies for future missions. Working with space and ground-based groups around the world, they are now the largest space science department in Europe, and have been involved in over 150 missions in recent years, ...

  • On the right track

    High-speed train manufacturer, CAF, rely on world-class beamforming technology to reduce the noise generated by their trains – helping to make high-speed trains a more viable option for travellers and operators alike. Because of its relatively low levels of CO2 emissions, train travel is considered one of the ...

  • Vibration monitoring and analysis in aircraft engine test cells

    Snecma, part of the SAFRAN group, is dedicated to the production of engines for both air and space. Working alone or in partnership, Snecma designs, develops and produces engines for civil and military aircraft, launch vehicles and satellites. The company is organised in three divisions: Commercial Engines – Snecma and GE Transportation team up to produce the bestselling family of CFM56 ...

  • Chevy volt uses LDS vibration test system for electric vehicle battery durability tests

    General Motors General Motors, one of the world’s largest automakers, traces its roots back to 1908. With its global headquarters in Detroit, GM employs 204,000 people in every major region of the world and does business in some 140 countries. GM and its strategic partners produce cars and trucks in 34 countries, and sell and service these vehicles through the following brands ...

  • TRaC UK – LDS V984 vibration testing of fuel probes for the V22 Osprey

    The Partnership Founded in 1934 as Flight Refuelling Limited (FRL), Cobham plc is a British manufacturing company based in Wimborne Minster, Dorset, England. It is organised into four core technology divisions – Mission Systems, Defence Systems, Avionics and Surveillance, and Aviation Services. The Cobham Mission Systems Division claims to be the world market leader for air-to-air ...

  • Brake Test Systems

    For quality assurance and technical refinement of brakes, which are of course highly important for vehicle safety, the brake R&D engineering community makes extensive use of a variety of dedicated brake test systems. For example, a friction tester can evaluate wear-behaviour and friction coefficient of materials and is utilized for managing the production quality of such materials. An inertia ...


    By HORIBA Europe GmbH

  • Vibration isolation for engine mount systems using an active hybrid robust controller

    In this paper, a hybrid robust controller is proposed for reducing vibration on single input/single output (SISO) and multiple input/multiple output (MIMO) engine mount systems. The controller is designed to achieve robust stability and fast convergence by using a combination of the filtered-x least mean squares (FXLMS) and H∞ robust control methods. Plant response is identified by a ...


    By Inderscience Publishers

  • Inalfa - production testing of sunroof systems

    Production Testing of Sunroof Systems Sound and vibration are growing in importance as critical factors in product quality. Therefore, manufacturers are required to perform noise and/or vibration quality testing prior to shipping a product. The proper implementation of such a test is a significant challenge – one that can offer a very large return on investment. To address this ...

  • Engine Testing

    Engine testing involves measurement of rotating speed and torque of the engine by applying load controlled by a dynamometer connected to its output shaft. HORIBA has developed various types of dynamometer for the purpose of engine testing. They are mainly classified into two types; one is absorbing only dynamometer such as hydraulic dynamometers and eddy-current dynamometers, the other is ...


    By HORIBA Europe GmbH

  • Experimental observations of coupled-mode instability in disc brake systems leading to squeal vibration

    A brake system test rig was used to simulate braking operation and measure acoustic pressure, disc temperature and brake pressure during squeal events. Experimental results presented are the strong dependence of squeal frequency content on engagement pressure, the broadening of required brake pressure range for squeal existence as temperature increases, and a periodic squeal behaviour. A model ...


    By Inderscience Publishers

  • Predicting noise, vibration and harshness performance degradation through fatigue analysis

    Vehicle performance from a noise, vibration and harshness (NVH) perspective is typically evaluated at zero mileage. As the vehicle accumulates miles, systems that are considered as NVH sources and systems that are part of a noise and vibration path tend to see some degradation due to loosened joints, burnished gears, burnished bearings, etc. Up to date, efforts made to understand and predict NVH ...


    By Inderscience Publishers

  • Experimental investigation of flow-induced vibration in PFBR steam generator sector model

    The 500 MWe Prototype Fast Breeder Reactor (PFBR) is under construction at Kalpakkam. It is a liquid metal sodium-cooled pool-type fast reactor with all primary components located inside a sodium pool. Fission heat is transferred to a secondary sodium system in an intermediate heat exchanger, which is in turn transferred to water in a Steam Generator (SG). The PFBR-SG is a vertical shell and ...


    By Inderscience Publishers

  • Asset Management Condition Assessment for Stockton: To Test or Not To Test

    ABSTRACTTo help ensure assets are maintained to high standards, a 20-year service contact between the City of Stockton and OMI/Thames Water required a condition assessment of all managed assets. Due to the size and complexity of the system, it was not possible to test all assets as part of the condition assessment. A methodology was developed to prioritize assets to be subjected to further ...

  • Chevy volt battery durability testing

    Accelerated Lifetime Tests   Hybrid power technology development is ramping up globally in today’s ultra competitive automotive industry – and these technologies of the future demand vibration test solutions that can efficiently perform accelerated lifetime tests even on large and fully operational assemblies. General Motors’ 3000 sq.m battery test ...

  • Investigation on axial vibration of high-speed vehicle engine crankshaft based on Rayleigh differential method

    A new mathematical model of axial vibration was constructed by simplifying the crankshaft to a continuous stepped shaft model and formulating kinetic formulae of shafts and masses. Applying a vector matrix, a single order or a whole system vibration can be analysed. Using a new testing device, vibrations at the free-end of the engine shaft were measured and compared with the calculation result. ...


    By Inderscience Publishers

  • Development of small-sized flexible pneumatic valve using vibration motor and its application for wearable actuator

    Owing to the recent ageing and decreasing birth rate, providing nursing care to the elderly has become very crucial. As a result, it is necessary to develop wearable systems to aid in nursing care. To realise such a system, we require not only wearable soft actuators, but also a compact and flexible control valve. The purpose of our study is to develop a flexible, lightweight and compact control ...


    By Inderscience Publishers

  • Ishibashi tests wind gearboxes with PULSE

    Japan’s largest wind turbine gearbox manufacturer Ishibashi faces a familiar challenge in manufacturing wind turbine gearboxes - ensuring the reliability and longevity that is critical to their customer’s return on investment. At the core of Ishibashi’s testing procedure is Brüel & Kjær’s PULSE analyzer and - following the acquisition of their first system ...

  • Vibration – What is It? How does it Affect My Operation? What can I Do About It?

    ABSTRACTThis paper describes how pump vibration can create problems in conveyance systems. Potential sources of vibration are reviewed as well as factors that affect pump vibration. Examples are presented that demonstrate pump vibration problems: (1) when a wet well level was lowered to obtain system storage capacity, (2) in a new installation, and (3) when one pump in an installation functioned ...

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you