Download or read book Acoustics Measurement of Exterior Noise Emitted By Earthmoving Machinery Dynamic Test Conditions written by SLTC - Earth Moving Machinery Sound Level and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Standard describes a method for determining the noise emitted to the environment by earthmoving machinery in terms of the A-weighted sound power level while the machine is working under dynamic test conditions. This SAE Standard is special test code for specific types of earthmoving machinery. It is an extension of SAE J2101/ISO 4872, which contains the general requirements for construction equipment. A simulated dynamic rath than an actual work cycle test condition is chosen. Dynamic test conditions provide acceptable noise emission data, which are repeatable and representative. Actual work cycle tests are complex and repeatability can be a problem Specific procedures are described in this document to enable the sound power emission in dynamic test conditions to be determined in a manner that is repeatable. Attachments (bucket, dozer, etc.) for the manufacturer's production version are to be fitted since this is the configuration most likely to exist when the machine is in actual use. This document enables compliance with noise limits to be determined. It can also be used for evaluation purposes in noise reduction investigation. An additional special test code is given in SAE J2105/ISO 6396.2. This other special test code is intended to be used to determine the noise emitted by earthmoving machiner, with the machine in dynamic test conditions, measured at the operator's position in terms of the equivalent continuous A-weighted sound pressure level. Corresponding measurements of noise emitted to the environment and noise at the operator's position under stationary test conditions are described in SAE J2102/ISO 6393 and SAE J2103/ISO 6394, respectively.

Download or read book Acoustics Measurement of Exterior Noise Emitted by Earth moving Machinery Stationary Test Conditions written by British Standards Institute Staff and published by . This book was released on 1999-04 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earth-moving equipment, Excavating equipment, Loaders, Tractors, Noise (environmental), Acoustic measurement, Sound intensity, Testing conditions, Stationary, Materials handling equipment

Download or read book Acoustics Measurement of Exterior Noise Emitted by Earth moving Machinery written by International Organization for Standardization and published by . This book was released on 1998 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Airborne Noise Emitted by Earth moving Machinery Method of Measurement of Exterior Noise in Dynamic Test Conditions written by British Standards Institute Staff and published by . This book was released on 1991-09-30 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earth-moving equipment, Excavating equipment, Noise (environmental), Acoustic measurement, Sound intensity, Simulation, Position, Test equipment, Testing conditions, Tractors, Loaders, Bulldozers, Mechanical shovels, Formulae (mathematics)

Download or read book Acoustics Measurement of Noise Emitted By Earthmoving Machinery At the OperatorS Position Simulated Work Cycle Test Conditions written by SLTC - Earth Moving Machinery Sound Level and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Standard describes a method for determining the noise emitted by earthmoving machinery at the operator's position in terms of the equivalent continuous A-weighted sound pressure level while the machine is carrying out a simulated work cycle. This SAE standard is a special test code for specific types of earthmoving machinery. It is an extension of ISO 6081 which contains the general requirements for many types of machinery and equipment. A simulated rather than an actual work cycle test condition is chosen. Simulated work cycles provide acceptable noise emission data which are repeatable and representative. Actual work cycle tests are complex and repeatability can be a problem. Specific procedures are described in this document to enable the sound pressure level at the operator's position,with the machine in a simulated work cycle test condition, to be determined in a manner which is repeatable. Attachments (bucket, dozer, etc.) for the manufacturer's production version are to be fitted since this is the configuration most likely to exist when the machine is in actual use. This document enables compliance with noise limits to be determined. It can also be used for evaluation purposes in noise reduction investigations. An additional special test code is given in SAE J2104/ISO 6395. This other special test code is intended to be used to determine the noise emitted by earthmovign machinery in terms fo the A-weighted sound power level while the machine is in a simulated work cycle test condition. Corresponding measurements of exterior noise and noise at the operator's position under stationary test conditions are described in SAE J2102/ISO 6393 and ISO J2103/ISO 6394, respectively.

Download or read book Acoustics Measurement of Airborne Noise Emitted by Earth moving Machinery and Agricultural Tractors written by and published by . This book was released on 1990 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acoustics Measurement of airborne noise emitted by earth moving machinery and agricultural tractors Stationary test condition Part 1 Determination of compliance with limits for exterior noise written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acoustics Measurement of Airborne Noise Emitted By Earthmoving Machinery Method for Determining Compliance With Limits for Exterior Noise Stationary Test Condition written by SLTC - Earth Moving Machinery Sound Level and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Standard describes a method for determining the exterior noise emitted by earthmoving machinery in terms of the A-weighted sound power level while the machine is in a stationary test condition. At six positions on a hemispherical surface, the equivalent continuous A-weighted sound pressure levels are measured. The A-weighted sound power level of the machinery is calculated from the measured values.

Download or read book Acoustics Measurement at the Operator s Position of Noise Emitted by Earth moving Machinery Stationary Test Conditions written by British Standards Institute Staff and published by . This book was released on 1999-04 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earth-moving equipment, Materials handling equipment, Excavating equipment, Tractors, Loaders, Noise (environmental), Operators (personnel), Drivers (vehicles), Acoustic measurement, Sound intensity, Testing conditions, Stationary, Measuring instruments

Download or read book Acoustics Measurement of Airborne Noise Emitted By Earthmoving Machinery Operator s Position Stationary Testing Condition written by SLTC - Earth Moving Machinery Sound Level and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Standard describes a method for determining the noiseemitted by earthmoving machinery at the operator's position interms of the equivalent continuous A-weighted sound pressure levelwhile the machine is in a stationary test condition.This SAE Standard is a special test code for specific types ofearthmoving machinery. It is an extension of ISO 6081 whichcontains the general requirements for many types of machinery andequipment.Specific requirements are provided in this special test code toenable the sound pressure level at the operator's position,with the machine in a stationary test condition, to be determinedin a manner which is repeatable. Attachments (bucket, dozer, etc.)for the manufacturer's production version shall be fitted sincethis is the configuration most likely to exist when the machine isin actual use.This document will enable compliance with noise limits to bedetermined. It can also be used for evaluation purposes in noicereduction investigations.An additional special test code is given in SAE J2102/ISO 6393.This other special test code shall be used to determine theexterior noise emitted by earthmoving machinery in terms of theA-weighted sound power level while the machine is in a stationarytest condition.

Download or read book Acoustics written by and published by . This book was released on 1990 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acoustics Measurement of airborne noise emitted by earth moving machinery and agricultural tractors Stationary test condition Part 2 Operator s position written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acoustics Measurement of Airborne Noise Emitted By Construction Equipment Intended for Outdoor Use Method for Determining Compliance With Noise Limits written by SLTC - Earth Moving Machinery Sound Level and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Standard describes a method for measuring the weighted sound pressure levels at prescribed microphone positions in the proximity of a device or machine for outdoor use, in order to determine compliance with noise limits. The A-weighted sound power level of the source is calculated from the measured values. NOTES:1. When nine or more microphone positions are prescribed in the proximity of the source (as in Section 7), the A-weighted sound power levels determined in accordance with this document tend to result in standard deviations less than approximately 2 dB, provided that the spectrum does not contain pronounced discrete frequencies; if it does, the magnitude of the uncertainties will be larger and no general rules for the magnitude of the uncertainties can be given. These standard deviations reflect the cumulative effects of all causes of measurement uncertainty, excluding variations in the sound power level from machine to machine or from test to test, which may be caused, for example, by changes in the mounting or operating conditions of the source. 2. For measurements made using a hemispherical measurement suface, the directivity index of the source may be calculated according to the description of appendix B. 3. Measurement of A-weighted sound pressure levels at the operator's postion(s) is not described in this document. 4. The results of noise measurements made according to this document are obtained under prescribed conditions and iwll not necessarily correspond to the noise experienced from the equipment when it is in operation on a construction site.

Download or read book Reference Data for Engineers written by Mac E. Van Valkenburg and published by Elsevier. This book was released on 2001-10-19 with total page 1689 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reference Data for Engineers is the most respected, reliable, and indispensable reference tool for technical professionals around the globe. Written by professionals for professionals, this book is a complete reference for engineers, covering a broad range of topics. It is the combined effort of 96 engineers, scientists, educators, and other recognized specialists in the fields of electronics, radio, computer, and communications technology. By providing an abundance of information on essential, need-to-know topics without heavy emphasis on complicated mathematics, Reference Data for Engineers is an absolute "must-have" for every engineer who requires comprehensive electrical, electronics, and communications data at his or her fingertips. Featured in the Ninth Edition is updated coverage on intellectual property and patents, probability and design, antennas, power electronics, rectifiers, power supplies, and properties of materials. Useful information on units, constants and conversion factors, active filter design, antennas, integrated circuits, surface acoustic wave design, and digital signal processing is also included. The Ninth Edition also offers new knowledge in the fields of satellite technology, space communication, microwave science, telecommunication, global positioning systems, frequency data, and radar. * Widely acclaimed as the most practical reference ever published for a wide range of electronics and computer professionals, from technicians through post-graduate engineers. * Provides a great way to learn or review the basics of various technologies, with a minimum of tables, equations, and other heavy math.

Download or read book Acoustics Measurement of Airborne Noise Emitted By Earthmoving Machinery OperatorS Position Stationary Testing Condition written by SLTC - Earth Moving Machinery Sound Level and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Standard describes a method for determining the noiseemitted by earthmoving machinery at the operator's position interms of the equivalent continuous A-weighted sound pressure levelwhile the machine is in a stationary test condition.This SAE Standard is a special test code for specific types ofearthmoving machinery. It is an extension of ISO 6081 whichcontains the general requirements for many types of machinery andequipment.Specific requirements are provided in this special test code toenable the sound pressure level at the operator's position,with the machine in a stationary test condition, to be determinedin a manner which is repeatable. Attachments (bucket, dozer, etc.)for the manufacturer's production version shall be fitted sincethis is the configuration most likely to exist when the machine isin actual use.This document will enable compliance with noise limits to bedetermined. It can also be used for evaluation purposes in noicereduction investigations.An additional special test code is given in SAE J2102/ISO 6393.This other special test code shall be used to determine theexterior noise emitted by earthmoving machinery in terms of theA-weighted sound power level while the machine is in a stationarytest condition.

Download or read book Handbook of Engineering Acoustics written by Gerhard Müller and published by Springer Science & Business Media. This book was released on 2012-11-06 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: This acoustics handbook for mechanical and architectural applications is a translation of the German standard work on the subject. It not only describes the state of art of engineering acoustics but also gives practical help to engineers for solving acoustic problems. It deals with the origin, the transmission and the methods of abatement of air-borne and structure-borne sound of different kinds, from traffic to machinery and flow induced sound.

Download or read book Airborne Noise Emitted by Earth moving Machinery written by British Standards Institution and published by . This book was released on 1987 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: