{"id":453533,"date":"2024-10-20T09:30:46","date_gmt":"2024-10-20T09:30:46","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60068-2-862024\/"},"modified":"2024-10-26T17:38:44","modified_gmt":"2024-10-26T17:38:44","slug":"bs-en-iec-60068-2-862024","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60068-2-862024\/","title":{"rendered":"BS EN IEC 60068-2-86:2024"},"content":{"rendered":"

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
5<\/td>\nAnnex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
6<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
8<\/td>\nFOREWORD <\/td>\n<\/tr>\n
10<\/td>\n1 Scope <\/td>\n<\/tr>\n
11<\/td>\n2 Normative references <\/td>\n<\/tr>\n
12<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
13<\/td>\n4 Background
4.1 General
4.2 Multi-axis and\/or multi-exciter testing to achieve an improved distribution of dynamic responses <\/td>\n<\/tr>\n
14<\/td>\n4.3 Multi-exciter testing for large equipment
4.4 Multi-axis testing for reliability growth
4.5 Multi-axis testing to reduce test durations <\/td>\n<\/tr>\n
15<\/td>\n5 Test apparatus and control strategy
6 Test severities and tolerances
6.1 Test severities
6.2 Tolerances
6.3 Excitations outside the specified test frequency range <\/td>\n<\/tr>\n
16<\/td>\n6.4 Crossaxis motions
7 Mounting of specimen and installation of measurement systems <\/td>\n<\/tr>\n
17<\/td>\n8 Precursor testing
9 Vibration response investigation
10 Pre-conditioning <\/td>\n<\/tr>\n
18<\/td>\n11 Initial measurement and functional performance test
12 Low level excitation for equalisation prior to testing
13 Testing
14 Intermediate measurement and functional performance
15 Recovery <\/td>\n<\/tr>\n
19<\/td>\n16 Final measurement and functional performance and vibration response investigation
17 Test verification
18 Information to be specified in the relevant specification <\/td>\n<\/tr>\n
20<\/td>\n19 Information to be given in the test report <\/td>\n<\/tr>\n
22<\/td>\nAnnex A (informative)Guidance on multi-axis and multi-exciter test control systems
A.1 General
A.2 Multi-exciter control strategies <\/td>\n<\/tr>\n
23<\/td>\nA.3 Determined and over determined control strategies <\/td>\n<\/tr>\n
24<\/td>\nA.4 Quantifying the inter-relationship between exciters for vibration testing
Figure A.1 \u2013 Power Spectral Density (PSD) and Cross-Spectral Density (CSD)for a two exciter system
Figure A.2 \u2013 Power Spectral Density (PSD) and Cross-Spectral Density (CSD)for a six exciter system <\/td>\n<\/tr>\n
25<\/td>\nA.5 Quantifying the inter-relationship between exciters for time history replication testing <\/td>\n<\/tr>\n
27<\/td>\nAnnex B (informative)Additional testing guidance
B.1 Fixing, monitor, control and reference points
B.2 Control equalisation <\/td>\n<\/tr>\n
28<\/td>\nB.3 Cross-axis motion, signal distortion and out of test frequency range responses <\/td>\n<\/tr>\n
29<\/td>\nB.4 Precursor testing
B.5 Vibration response investigation
B.6 Temperature conditioning and stabilization <\/td>\n<\/tr>\n
30<\/td>\nB.7 Performance evaluation
B.8 Verification of test procedure <\/td>\n<\/tr>\n
32<\/td>\nAnnex C (informative)Guidance on the application of multi-axis \/ multi-vibrator tests
C.1 General
C.2 Advice on using multi-exciter systems for the testing of large specimens
C.2.1 General
C.2.2 Data measurements
C.2.3 Multi-exciter test fixture <\/td>\n<\/tr>\n
33<\/td>\nC.2.4 Test control
C.2.5 Testing
C.3 Advice on using multi-axis systems for multi-degree of freedom testing
C.3.1 General <\/td>\n<\/tr>\n
34<\/td>\nC.3.2 Data measurements
C.3.3 Multi-exciter test fixture
C.3.4 Test control
C.3.5 Testing <\/td>\n<\/tr>\n
35<\/td>\nC.4 Advice on using multiple shakers attached directly to the specimen via flexible couplings
C.4.1 General
C.4.2 Data measurements <\/td>\n<\/tr>\n
36<\/td>\nC.4.3 Multi-exciter test fixture <\/td>\n<\/tr>\n
37<\/td>\nC.4.4 Test control
Figure C.1 \u2013 Examples of spherical bearings <\/td>\n<\/tr>\n
38<\/td>\nC.4.5 Interrelationship in testing <\/td>\n<\/tr>\n
39<\/td>\nAnnex D (informative)Guidance on the use of measured data for multi-axis\/multi-vibrator tests
D.1 General
D.2 Use of measured data to derive test severities <\/td>\n<\/tr>\n
41<\/td>\nAnnex E (informative)Guidance on the selection of test tolerances
E.1 General
E.2 Test tolerances associated with measured data
E.3 Test tolerances applicable to different parameters <\/td>\n<\/tr>\n
42<\/td>\nTable E.1 \u2013 Test tolerances applicable to different parameters <\/td>\n<\/tr>\n
43<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Environmental testing – Tests. Test Fx: Vibration. Multi-exciter and multi-axis method<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2024<\/td>\n44<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":453546,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-453533","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/453533","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/453546"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=453533"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=453533"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=453533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}