Force control

In low-cost permanent magnet synchronous motor (PMSM) drive systems, the rotor position is usually estimated based on the back-electromotive force. However, such estimation methods have the common drawback of having large errors in low-speed regions. In order to solve that drawback in the startup phase, the I-f startup method is studied as its compatibility with the FOC control structure. The purpose of such a method is to make the motor accelerate and overcome the low-speed threshold.

8p vialicene 02-07-2024 1 0   Download

Part 2 of ebook "Robotics: Modelling, planning and control" provides readers with contents including: Chapter 8 - Motion control; Chapter 9 - Force control; Chapter 10 - Visual servoing; Chapter 11 - Mobile robots; Chapter 12 - Motion planning;...

324p daonhiennhien 03-07-2024 3 1   Download

Biological individuals in the wild often have a definite size and mass, so simulation of the real biological swarm behavior should take these factors into account. The article focuses on building an algorithm to calculate the force acting on each individual robot in the swarm based on their mass through the “Double integral” model.

11p viwalton 02-07-2024 4 1   Download

This paper proposes a mapping method to unify two workspaces for the robot arm on the teleoperation system and apply the haptic method when the robot enters the singularity area. The teleoperation system mainly consists of a single master and a single slave.

13p viwalton 02-07-2024 1 1   Download

Lecture Petroleum production engineering - Chapter 3: Single-phase pipe flow. This lesson provides students with content about: fully developed single-phase pipe flow; forces acting on control volume; three parts of pressure gradient; laminar or turbulent flow; laminar pipe flow; the friction factors and friction losses;... Please refer to the detailed content of the lecture!

45p mothuahoa 04-05-2024 0 0   Download

Ebook "Ionospheric space weather: Longitude and hemispheric dependences and lower atmosphere forcing" from the conference describes the physics of this system and the mechanisms that control ionospheric space weather in a combination of tutorial-like and focused articles that will be of value to the upper atmosphere scientific community in general and to ongoing global magnetosphere-ionosphere-thermosphere (MIT) modeling efforts in particular. A number of articles from each science theme describe details of the physics behind each phenomenon that help to so.

296p cotieubac1004 15-03-2024 2 0   Download

The main purpose of a study is to identify patterns of behaviour emerging as a result of deployment of transportation real time visibility platform in a complex supply chain of multi-stage subcontracting. In the complex multi-stage subcontracting network with real-time transport visibility platform there are tensions between collaboration and competition as well as autonomy and control translating into paradox of forced ecosystem.

5p longtimenosee04 06-03-2024 2 0   Download

This paper investigated the influence of the TMD device, including its mass and stiffness, on the vibration reduction of the primary structure, a basic steel beam. In which, a small-scale steel beam model with boundary conditions through experiments was carried out.

5p vigojek 02-02-2024 1 0   Download

Part 1 book "Studies in systems, decision and control" includes content: Introduction; unforced linear systems; stability of unforced linear systems; linear systems with forcing term.

81p muasambanhan06 03-02-2024 4 2   Download

In ebook "Artificially controllable nanodevices constructed by DNA origami technology: Photofunctionalization and single-molecule analysis" the author deals mainly with two topics: (1) single-molecule visualization of switching behaviors in the DNA nanoframe system utilizing different kinds of molecular switches through the use of high-speed atomic force microscope (AFM); (2) construction of photocontrollable DNA nanostructures in programmed patterns and direct visualization of the dynamic assembling process.

82p nhanphanguyet 28-01-2024 3 2   Download

Part 2 book "Sex control in aquaculture" includes content: Sex determining mechanisms and control of sex differentiation in largemouth bass and crappies, hybridization and its application in centrarchids.

465p muasambanhan04 07-01-2024 5 1   Download

This study was carried out to calculate and design the mechanical, hydraulic, and electrical control systems of a CVT test bench. With the initially designed test bench simulated, it is possible to evaluate the characteristic quantities controlling the transmission ratio of the gearbox such as the pressure acting on the pulleys, the force acting on the belt, the torque at axes corresponding to different load modes vary from 2kW to 6 kW.

10p vijeff 27-11-2023 8 4   Download

Ebook "The last battle of the Cold War: An inside account of negotiating the Intermediate Range Nuclear Forces Treaty" focuses on debates among American negotiators and between them and the Europeans and Soviets. This is an important look at policy making and negotiations all the more relevant in an age of proliferation.

272p tuongnhuoclan 27-11-2023 4 3   Download

Part 1 of ebook "Light and heavy vehicle technology" provides readers with contents including: the reciprocating piston petrol engine; the diesel engine; combustion chambers and processes; engine lubrication; engine cooling, vehicle heating and air conditioning; carburation and fuel injection; intake and exhaust systems; diesel fuel injection systems; forced induction; ignition and starter systems; engine emission control; rotary piston engine; friction clutches;...

338p dangsovu 20-10-2023 11 3   Download

This study presents a force control approach for an EHA system using a combination of a feedforward-based PID (FPID) controller and a grey predictor (GP), shortened as grey predictor-based feedforward PID Controller (GPFPID). The FPID controller is used to drive the system to desired targets. Meanwhile, the GP predictor takes part in estimating the output in the near future to optimize the controller parameters in advance and to create a compensating control signal corresponding to the system perturbations, consequently, improving the control performance.

4p giangnhanly 02-10-2023 7 3   Download

Ebook "Robotics demystified" includes content: Introduction, mechanical forces, simple machines, electricity, starting with electronics, control, sequencing and programs, joints, power transmission, beyond resistance - capacitance, inductance and magnetism, semiconductors, programming,... and other contents.

333p haojiubujain07 20-09-2023 7 4   Download

Continued part 1, part 2 of ebook "Sales management" provides readers with contents including: management and control of the sales force; developing the business; territory management; sales force administration; sales management control; trade development; sales promotion; merchandising at the point of sale; key account management; alternative sales or distribution operations;...

200p thamnhuocgiai 24-09-2023 8 6   Download

Continued part 1, part 2 of ebook "Sales and distribution management: Decisions, strategies, and cases" provides readers with contents including: sales force management; sales personnel management; recruitment and selection; sales training; motivating sales personnel; compensating sales personnel; managing expenses of sales personnel; sales meetings and sales contests; controlling sales personnel, evaluating and supervising; controlling the sales effort; the sales budget; targets and sales management;...

370p thamnhuocgiai 24-09-2023 6 5   Download

This paper addresses an on-off adaptive damping isolation, in which the damping can be frequency dependent. The comparison with the passive isolation is illustrated by the trade off performance curve, which is shown the relation between the displacement and force transmissibility

14p viisac 15-09-2023 3 3   Download

This paper presents a method of controlling a serial robot for milling by an inverse kinematic controller combined with an outer PD loop (Inverse Dynamics + PD controller), with calibration and compensation of errors in calculating the cutting forces.

12p viisac 15-09-2023 16 7   Download