《journal of harbin bearing》-2020-04

Journal of Harbin Institute of Technology(New Series)

Related citation: Jinbao Zhang Yongqiang Zhao Lingxian Kong Ming Liu Morphology Similarity Distance for Bearing Fault Diagnosis Based on Multi-Scale Permutation Entropy[J] Journal of Harbin Institute Of Technology(New Series) 2020 27(1):1-9 DOI:10 11916/j

April 2020 / Vol 14 Spotlights

2020-4-29April 2020 / Vol 14 On April 8 China Business Law Journal announced winners of its 2020 China Business Law Awards With its 2020 for the use of the original special marks of geographical indications stating that products bearing the original marks that are produced before December 31 2020 may continue to be circulated in the market

2015-2-2D Y Long W Jia and Ming Li Optimal prefix codes and Huffman codes International Journal of Computer Mathematics (Int J Comput Math) 80(6) June 2003 727-742 (SCI/EI) D Y Long W Jia P O Au and Ming Li Improving Chinese storing text retrieval systems' security via a novel maximal prefix coding International Journal of Computer Processing of Oriental Languages (IJCPOL)

Dynamic Characteristics of Encased Differential Gear

3 1 Comparative Analysis of Spring Bearing and Journal Bearing Before performing planet bearing parameter analysis we calculate the dynamic deviation of the meshing force to investigate whether the encased differential gear train with journal bearing is more stable than the encased differential gear train with spring (i e planet bearings are replaced by fixed stiffness springs)

Control of Period

Period-doubling instability in the VC primary resonances of ball bearing is presented in many studies Recently this instability was demonstrated to be a probable indicator of occurrence of strong one to two internal resonances and chaotic motions which has potential effects on the stability and safety of the bearing-rotor system

We publish scientific and engineering peer

The second volume of the topic series "Superalloys" contains articles published by Trans Tech Publications from 2018 up to 2019 This collection presents a wide range of scientific research results and engineering solutions in the field of alloy developments and performance physical and mechanical properties and processing technologies of various types of superalloys

Magnetic Circuit Model of Axial Magnetic Bearing for

Current and displacement stiffness are important parameters of axial magnetic bearing (AMB) and are usually considered as constants for the control system However in actual dynamic work situations time-varying force leads to time-varying currents and air gap with a specific frequency which makes the stiffness of appear decrease and even worsens control performance for the whole system

Dynamic Characteristics of Encased Differential Gear

3 1 Comparative Analysis of Spring Bearing and Journal Bearing Before performing planet bearing parameter analysis we calculate the dynamic deviation of the meshing force to investigate whether the encased differential gear train with journal bearing is more stable than the encased differential gear train with spring (i e planet bearings are replaced by fixed stiffness springs)

Journal of Harbin Institute of Technology(New Series)

【03-27】The Outstanding Reviewers in 2014 in "Journal of Harbin Institute of Technology (New Series)"(4852) 【02-18】The Outstanding Reviewers in 2013 in "Journal of Harbin Institute of Technology (New Series)"(2962) 【12-29】The first Outstanding 【05-04】

Degradable Calcium Phosphate

2020-4-10The development of a stimulus-responsive nanosystem provides an effective method for improving the accuracy and efficiency of chemotherapy Meanwhile traditional photodynamic therapy (PDT) has been substantially restricted by the low dosage of photosensitizer and limited penetration depth of the ultraviolet (UV) or visible light used for excitation Here we designed a smart

Journal of Harbin Institute of Technology(New Series)

【03-27】The Outstanding Reviewers in 2014 in "Journal of Harbin Institute of Technology (New Series)"(4852) 【02-18】The Outstanding Reviewers in 2013 in "Journal of Harbin Institute of Technology (New Series)"(2962) 【12-29】The first Outstanding 【05-04】

Structural Optimization of Transmission Box of Agrimotor

In this paper taking a hydraulic mechanical continuously variable transmission box for study At first a dynamic model for gear transmission system is created in Adams for obtaining the excitation load spectrum of each bearing hole in the forward operating

Effect Analysis of Dimensional Tolerances on the

According to the exist of dimensional tolerances on hydrodynamic journal bearing system a nonlinear oil film force model was developed emphasis on the different dimensional tolerances in the system the tolerances of dynamic viscosity bearing width bearing diameter and journal diameter along with its interaction effect to the dynamics characteristics of the hydrodynamic journal bearing

Journal of Harbin Institute of Technology(New Series)

School of Astronautics Harbin Institute of Technology Harbin 150001 China Abstract : In order to clarify the effects of support structure on a dual-rotor machine a dynamic model is established which takes into consideration the contact force of ball bearing and the cubic stiffness of elastic support

of Alkenes with Alkyl Halides and Terminal Alkynes

2020-4-27ands bearing electron-deficient P-aryl rings and the most sterically bulky ligand L1 gave rise to the highest enantioselectivity In con-trast the enantioselectivity only slightly changed among different solvents or copper salts Notably the reaction solvent significantly affected the ratio between the desired alkene addition product 4 and

Effect Analysis of Dimensional Tolerances on the

According to the exist of dimensional tolerances on hydrodynamic journal bearing system a nonlinear oil film force model was developed emphasis on the different dimensional tolerances in the system the tolerances of dynamic viscosity bearing width bearing diameter and journal diameter along with its interaction effect to the dynamics characteristics of the hydrodynamic journal bearing

Postfire Safety Investigation on Prestressed RPC

Since the postfire safety of prestressed RPC beams after exposure to elevated temperatures needs to be studied and proved this paper prepares eight smart prestressed RPC beams with intelligent sensors built in to monitor the internal temperature force and strain The residual bearing tests after fire are carried out The failure process of the beams under static load with different fire

Effect Analysis of Dimensional Tolerances on the

According to the exist of dimensional tolerances on hydrodynamic journal bearing system a nonlinear oil film force model was developed emphasis on the different dimensional tolerances in the system the tolerances of dynamic viscosity bearing width bearing diameter and journal diameter along with its interaction effect to the dynamics characteristics of the hydrodynamic journal bearing

Control of Period

Period-doubling instability in the VC primary resonances of ball bearing is presented in many studies Recently this instability was demonstrated to be a probable indicator of occurrence of strong one to two internal resonances and chaotic motions which has potential effects on the stability and safety of the bearing-rotor system

Chinese Journal of Materials Research

Received: 04 February 2015 Fund: *Supported by Natural Science Foundation of Heilongjiang Province of China No C201236 Science and Technology Foundation of Heilongjiang Educational Committee No 12531177 and Pre-research Foundation for Development of Science and Technology of Harbin Normal University No 11XYS-02

Journal of Harbin Institute of Technology(New Series)

Related citation: Lin Hua Fan Wu Jinlei Mu Xiaolong Ma Method for Calculating the Ultimate Strength of Pitting Corrosion Ship Structural Plates Under Combined Loads[J] Journal of Harbin Institute Of Technology(New Series) 2018 25(5):78-85 DOI:10 11916/j issn

Journal of Harbin Institute of Technology(New Series)

School of Astronautics Harbin Institute of Technology Harbin 150001 China Abstract : The transient proper orthogonal decomposition (TPOD) method is used to study dynamic behaviors of the reduced rotor-bearing models and the fault-free model is compared with the models with looseness fault

The Bearing Capacity Calculation Method of Cracked

Juan Su [6 J Su Z Wang L Bai and Y Han Fire resistance of four-faced reinforced concrete column Journal of Harbin engineering University vol 28 no 12 pp 1326-1331 2007 ] put forward a simplified calculation method of bearing capacity based on the eccentric load and lateral deflections of column