ДСТУ EN 60994:2022 Посібник для польових вимірювань вібрацій і пульсацій у гідравлічних машинах (турбіни, насоси-акумулятори та турбіни-насоси) (EN 60994:1992, IDT; IEC 60994:1991, IDT)

ДСТУ EN 60994:2022
(EN 60994:1992, IDT; IEC 60994:1991, IDT)

Посібник для польових вимірювань вібрацій і пульсацій
у гідравлічних машинах (турбіни, насоси-акумулятори та турбіни-насоси)

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

Section 1. General

1 Scope and object

1.1 Scope

1.2 Object

1.3 Excluded topics

2 Terms, definitions, symbols and units

2.1 Units

2.2 Terms

2.3 List of terms specific to this guide

2.4 Classification of hydraulic machines

3 Guarantees

Section 2. Execution of tests

4 Test conditions to be fulfilled

4.1 Operating conditions under which measurements are performed

4.2 Checks on the machine before the beginning of tests

5 Test procedure

5.1 Parameters determining the operating point

5.2 Vibration and pulsation quantities to be measured and locations of measuring points

5.3 Personnel

5.4 Agreement of test procedure

5.5 Test programme

5.6 Preparations for tests

5.7 Observations

5.8 Repetition of tests

Section 3. Methods of measurement, data acquisition and processing

6 Considerations relating to the methods of measurement

6.1 Vibrations

6.2 Radial vibrations of the shaft relative to the bearings

6.3 Pressure pulsations

6.4 Stresses

6.5 Shaft torque pulsations

6.6 Rotational speed pulsations

6.7 Power pulsations

6.8 Guide vane torque pulsations

6.9 Radial thrust pulsations measured at the guide bearings

6.10 Axial thrust pulsations measured at the thrust bearing

6.11 Measured quantities defining the machine operating point

7 Calibration

7.1 General

7.2 Direct calibration

7.3 Calibration by electrical reference signals

8 Recording

8.1 Graphical recorders

8.2 Magnetic tape recorders

8.3 Digital recording

9 Data acquisition and processing

9.1 General

9.2 Selection of data processing methods

10 Measurement uncertainties

11 Final report

Appendix A Formulae for calculating principal stresses and signal processing for dynamic strain measurements with rosettes

Appendix B Formulae for calculating the torque on a cylindrical solid shaft and the axial load on a rectangular or circular section link using the strain gauge technique

Appendix C Example of final report

Appendix D Distortion of pressure pulsation measurements for transducers mounted with connecting pipe

Annex ZA (normative) Other international publications quoted in this standard with the references of the relevant European publications