JB/T 12105-2014Straight Sided Mechanical Power Presses - Evaluation Method for Reliability (English PDF)

National Standard of the People's Republic of China

Replacing

JB/T 54366-1994

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Contents

• 1 Scope
• 2 Normative references
• 3 Terms and definitions
• 4 Fault classification and principles for judging a fault
• 4.1 Fault classification
• 4.2 Principles for judging a fault
• 5 Sampling
• 6 Test scheme
• 7 Test methods
• 7.1 Preliminary check of the test prototype
• 7.2 Preventive maintenance of the test prototype
• 7.3 Test conditions
• 8 Fault monitoring
• 9 Data collection
• 9.1 Test field trial
• 9.2 Field follow-up trial
• 10 Reliability assessment indices
• 10.1 Mean time between failures MTBF
• 10.2 Mean time to repair MTTR
• 10.3 Inherent availability A
• 10.4 Assessment where no relevant failure has occurred
• 11 Judgement of the test results
• Annex A (normative) Failure modes and failure categories of the press
• Annex B (informative) Running record sheet of the reliability test
• Annex C (informative) Fault record sheet of the reliability test
• Annex D (informative) Fault analysis report
• Table 1 Principles of fault classification of the press and equivalent fault coefficients
• Table A.1 Failure modes and failure categories of the press
• Table B.1 Running record sheet of the reliability test
• Table C.1 Fault record sheet of the reliability test
• Table D.1 Fault analysis report