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JJF 1156-2006: Terminology and Definitions for Measurement of Vibration, Shock and Rotating Velocity
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JJF 1156-2006: Terminology and Definitions for Measurement of Vibration, Shock and Rotating Velocity

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Terminology and Definitions for Measurement of Vibration, Shock and Rotating Velocity National Metrology Technical Specification of the People's Republic Vibration shock speed measurement terminology and definition Released on.2006-09-06 Implementation of.2006-12-06 The General Administration of Quality Supervision, Inspection and Quarantine issued Vibration shock speed measurement terminology and definition This specification was approved by the General Administration of Quality Supervision, Inspection and Quarantine on September 6,.2006, and since.2006 It will take effect on December 6th. Focal Point. National Vibration Shock Velocity Measurement Technical Committee Drafting unit. National Vibration Shock Velocity Measurement Technical Committee This specification is interpreted by the National Vibration Shock Velocity Measurement Technical Committee. Drafters of this specification. Xu Yin China Institute of Metrology Yan Shuyuan, China Aviation Industry First Group Corporation, No. 404 Institute Xu Xiaomei Institute of China Aviation Industry First Group Corporation No. 404 Institute Yang Jianhui Shaanxi Institute of Metrology and Testing Yuming Hubei Institute of Metrology Zengwu China Aviation Industry First Group Corporation 304 Institute Li Xinliang, Institute of China Aviation Industry First Group, 404 Institute Wu Chengqi Beijing Institute of Metrology and Measurement Gu Guofu Ordnance Industry Institute.2002 Yu Mei China Institute of Metrology Li Xuerui Beijing Institute of Metrology and Measurement Gao Jinfang, China Rocket Technology Research Institute 102 Long Zuhong China Aviation Industry First Group Corporation 304 Institute Hong Baolin China Aviation Industry First Group Corporation 404 Institute Li Chuanri Beihang University

table of Contents

1 Subject content and scope of application (1) 1.1 Subject Contents (1) 1.2 Scope of application (1) 2 General terms (1) 3 vibration (7) 4 Impact (33) 5 speed (39) 6 constant acceleration (49) 7 Balance (52) Chinese index (55) English index (62) Vibration shock speed measurement terminology and definition

1 Subject content and scope of application

1.1 Subject content This specification specifies the basic terms of vibration, shock, rotational speed, constant acceleration, balance, and related auxiliary terms. 1.2 Scope of application This specification is applicable to all fields related to vibration, shock, rotational speed, constant acceleration, and balance.

2 general terminology

2.1 Acceleration of gravity (accelerationofgravity) The acceleration of an object on the surface of the earth due to gravity is called the acceleration of gravity. It and the earth's gravity, the ground The acceleration caused by the rotation of the ball is related to its value. The value of the ball changes with the latitude and height of the observation point. The direction is the observation point. The vertical direction of the ground points to the center of the earth. 2.2 International standard gravity acceleration (internationalstandardgravityacceleration) Internationally, the gravitational acceleration value of the sea level of 45° north latitude is 9.80665 m/s2, which is defined as the standard gravity acceleration. Gn=9.80665 m/s2. 2.3 system (system) A combination of related parts used to perform certain functions. Commonly used systems are. (1) linear system (linearsystem). the response is proportional to the magnitude of the excitation, and the system that satisfies the superposition theorem System (2) mechanical system (mechanical system). a system consisting of elements such as mass, stiffness and damping; (3) Dynamic system. A system that now outputs output related to past inputs. Dynamic system With memory function, the relationship between input and output can be described by differential equations (or difference equations); (4) inertial system (seismicsystem). relying on elastic elements to connect a mass to the reference base System, the system usually also includes a damping element; (5) equivalent system (equivalent system). a system equivalent to the original system effect used for analysis System (6) Measurement system. A complete set of measuring instruments assembled for a specific measurement. And other equipment. 2.4 Excitation External force or other input acting on the system. An incentive with real and imaginary parts derived from the calculation ...