BS 6140-2:1982:2007 Edition
$102.76
Test equipment for generating vibration. – Methods of describing characteristics of auxiliary tables for test equipment for generating vibration
| Published By | Publication Date | Number of Pages |
| BSI | 2007 | 16 |
This International Standard defines the content of the information flow to be established between manufacturers and users of auxiliary tables with a view to working out related specifications and possibly to comparing in an objective way, the characteristics advertised by the various manufacturers of auxiliary tables and associated guidance systems.
Specifies methods of desribing characteristics of various types of auxiliary tables and provides a basis for comparisons of predicted performances of items offered by different suppliers.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD BS 6140-2: 1982 ISO 6070:1981 Test equipment for generating vibration – Part 2: Methods of describing characteristics of auxiliary tables for test equipment for generating vibration [ISO title: Auxiliary tables for vibration generators – Methods of describing equipment characteristics] |
| 2 | This British Standard, having been prepared under the direction of the Mechanical Engineering Standards Committee, was published under the authority of the Board of BSI and comes into effect on 29 October 1982 Cooperating organizations |
| 3 | Contents |
| 4 | National foreword |
| 5 | 1 Scope 2 Field of application a) minimum level of description; b) medium level of description; c) high level of description. 3 Symbols |
| 6 | 4 Units 5 Definitions 5.1 Types of auxiliary tables 5.1.1 flat spring tables 5.1.2 oil or air cushion tables 5.1.3 mechanical slide tables 5.1.4 ball, roller or needle bearing tables 5.1.5 hydraulic slide tables 5.1.6 hydrostatic bearing tables |
| 7 | Figure 1 – Example of coupling of an auxiliary table to single vibration generator – Typical arrangement 5.1.7 magnetic bearing tables 5.1.8 dry bearing tables with hydrostatic compensation 5.2 Axis systems 5.2.1 moving table reference axis system |
| 8 | Figure 2 – Moving table reference axis system 5.2.2 other moving table reference axis systems 5.3 Characteristics 5.3.1 effective travel 5.3.2 rated frequency range 5.3.3 rated rms velocity Vz 5.3.4 static load (limit) Fs 5.3.5 limiting axial forces Fx, Fy, Fz |
| 9 | 5.3.6 limiting pitching torque Cµ 5.3.7 limiting rolling torque C¶ 5.3.8 limiting yawing torque C” 5.3.9 transmissibility 5.3.10 total harmonic distortion of acceleration 5.3.11 environmental limits 6 Test loads mt a) fixing screws shall be used in all available mounting locations to ensure sufficient stiffness of connection and avoid loosening or slipping; b) attention should be paid to the compatibility between contact surfaces of the test load and test table (for example, as concerns flatness); c) a test load of small relative height shall be used. The recommended ratio of the height to the diameter or diagonal of the test load shall be less than or equal to 0,4. 6.1 Test load m0 6.2 Test load m1 6.3 Test load m4 6.4 Test load m10 6.5 Test load m20 6.6 Test load m5 |
| 10 | 7 Characteristics to be supplied by the manufacturer |
| 11 | 7.1 Characteristics shared by all table types Table 1 a For the various test loads mt. |
| 12 | Table 1 7.2 Special characteristics for flat spring tables Table 2 |
| 13 | 7.3 Special characteristics for oil film or air cushion tables Table 3 7.4 Special characteristics for mechanical slide tables Table 4 7.5 Special characteristics for ball, roller or needle bearing tables Table 5 7.6 Special characteristics for hydraulic slide tables Table 6 |
| 14 | 7.7 Special characteristics for hydrostatic bearing tables Table 7 7.8 Special characteristics for magnetic bearing tables Table 8 7.9 Special characteristics for dry bearing tables with hydrostatic compensation Table 9 |
| 15 | 8 Measurement of common dynamic characteristics 8.1 Plotting of the acceleration transmissibility function 8.2 Measurement of transverse accelerations 8.2.1 Under no-load conditions 8.2.2 Under loaded conditions 8.3 Measurement of test table acceleration field uniformity 8.4 Measurement of acceleration distortion 8.5 Measurement of parasitic rotations 9 Operating instructions |
| 16 | BS 6140-2: 1982 ISO 6070:1981 |
