This document specifies a method to predict the dynamic forces generated by an active component on a receiving structure from measurement on a test bench.<\/p>\n
It sets out the requirements applicable to test benches and setup measurement conditions of dynamic forces: a criterion of validity of transfer functions measurements can be established for example.<\/p>\n
The objective is to evaluate noise and vibrations generated by active components mounted on receiving structures, including the possibility to optimise vibration isolators.<\/p>\n
It can be applied to different systems connected to a building, such as a compressor or a power generator, or to systems connected to a vehicle body, such as an engine powertrain or an electrical actuator, for example.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 4 Principle of the method of transposition of the dynamic force 4.1 General matters <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 4.2 General formulae 4.3 Geometrical considerations <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5 Operating mode 5.1 General 5.2 Synopsis of procedure 5.3 Tasks and preliminary operations <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 5.4 Transfer matrices determination 5.4.1 General 5.4.2 Final receiving structure transfer matrix determination \ufffc 5.4.3 Test bench transfer matrix determination, \ufffc 5.4.4 Connecting device spring-like matrix properties determination, \ufffc 5.4.5 Active Component transfer matrix determination, \ufffc <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 5.5 Measured dynamic forces transmitted to the test bench 5.6 Predicted dynamic forces transmitted to the final structure 5.6.1 General 5.6.2 Strong decoupling <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 5.6.3 Very similar bench and receiving structure 5.6.4 Case of a rigid receiving structure <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 5.6.5 Case of a non-rigid receiving structure <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 6 Requirements for data in test report 6.1 Specification of the integrator to the supplier 6.2 Data sent by the supplier to the integrator <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Annex A (informative) Theoretical developments <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Annex B (informative) Frequency response functions measurement <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Annex C (informative) Dynamic forces measurement <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Annex D (informative) Data processing <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Annex E (informative) Study of a wiper system <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | Annex F (informative) Equivalent force torsor and block-sensor method <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Acoustics. Experimental method for transposition of dynamic forces generated by an active component from a test bench to a receiving structure<\/b><\/p>\n |