ISO 8100-34:2021 pdf – Lifts for the transport of persons and goods — Part 34: Measurement of lift ride quality

ISO 8100-34:2021 pdf – Lifts for the transport of persons and goods — Part 34: Measurement of lift ride quality
1 Scope This document specifies requirements and methodology for the measurement and reporting of lift ride quality during lift motion. It does not specify acceptable or unacceptable ride quality. Lift performance parameters are often referenced in conjunction with lift ride quality. Parameters relevant to lift performance include jerk and acceleration. This document defines and uses performance parameters where they are integral to the evaluation of ride quality. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/IEC Guide 98, Guide to the expression of uncertainty in measurement (GUM) ISO 2041, Mechanical vibration, shock and condition monitoring — Vocabulary ISO 5805, Mechanical vibration and shock — Human exposure — Vocabulary ISO 8041, Human response to vibration — Measuring instrumentation IEC 61672-1:2013, Electroacoustics — Sound level meters — Part 1: Specifications IEC 61672-2:2017, Electroacoustics — Sound level meters — Part 2: Pattern Evaluation Tests ISO 80000-8:2020, Quantities and units — Part 8: Acoustics 3? Terms? and? definitions For the purposes of this document, the terms and definitions given in ISO 2041, ISO 5805, IEC 61672, and ISO 80000-8 and the following apply. ISO and IEC maintain terminology databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https:// www .org/ obp — IEC Electropedia: available at http:// www .electropedia .org/ 3.1 acceleration rate of change of z-axis velocity, attributed to lift motion control Note 1 to entry: It is expressed in metres per second squared (m/s 2 ).
3.2 vibration variation with time of the magnitude of acceleration, when the magnitude is alternately greater and smaller than a reference level Note 1 to entry: It is expressed in metres per second squared (m/s 2 ). Note 2 to entry: The deprecated unit Gal (Galileo) is sometimes used: 1 Gal = 0,01 m/s 2 . 3.3 A95 value of acceleration (3.1) or vibration (3.2), within defined boundaries or limits, which 95 % of found values are equal to or less than Note 1 to entry: This value is used statistically to estimate typical levels. Note 2 to entry: See 5.2.3, 5.4.1 and 5.4.3. 3.4 velocity rate of change of z-axis displacement, attributed to lift motion control Note 1 to entry: Velocity is reported as speed and direction of travel. It is given in metres per second (m/s). 3.5 V95 value of velocity (3.4), within defined boundaries or limits, which 95 % of found values are equal to or less than Note 1 to entry: This value is used statistically to estimate typical levels. Note 2 to entry: See 5.5.3. 3.6 x-axis, y-axis, z-axis axes of measurement orthogonal reference axes for the measurements Note 1 to entry: to entry: For lifts of conventional configuration, x is the perpendicular to the plane of the car front door (i.e. back to front), y is the perpendicular to x and z (i.e. side to side) and z is the perpendicular to the car floor (i.e. vertical). Note 2 to entry: For lifts of unconventional configuration, the axes should be defined for directions of basicentric coordinate systems for mechanical vibrations influencing human subjects, for a standing person facing the front car door, in accordance with ISO 2631-1. 3.7 lift ride quality sound levels in the car, and vibration of the car floor, relevant to passenger perception, associated with lift motion 3.8 jerk rate of change of z-axis acceleration (3.1), attributed to lift motion control
4 Measuring instrumentation 4.1 General The measuring instrumentation shall consist of the following: a) transducers to measure acceleration in each of the three orthogonal axes; b) a transducer to measure the sound pressure level; c) data acquisition system; d) data storage system; e) data processing system. 4.2 Characteristics The characteristics of the measuring instrumentation shall be as described in Table 1.